Fault Detector Specifications
Contents
1. The DC signal is recorded for one or two axes depending on the type of configured sensor heads The data is only recorded when measuring in the Save Mode Nominal Diameter pm 100 Lump Threshold um 3 Neckdown Threshold pm 3 AC sigma Threshold pm 0 4 Start 15 49 13 PSD 3 139 W PSD 3 139 W PSD 3 143 W PSD 3 143 W Time Pos m DC X m DC Y pm LU um NE pm DC X pm DC Y pm LU um NE um 15 49 18 24 10 99 95 100 01 1 68 1 35 99 99 100 00 1 40 1 38 15 49 24 24 20 99 92 100 01 1 16 1 36 100 02 99 96 1 23 135 15 49 30 24 30 09 92 99 99 1 14 1 32 100 02 99 97 1 14 1 40 15 49 36 24 40 99 93 100 03 1 18 1 34 99 98 100 00 ileal Lod 15 49 42 24 50 100 07 100 13 1 53 1 50 100 01 100 14 1 46 152 17 09 54 24 8070 99 79 99 76 1323 1451 99 90 99 83 1 18 155 Length 8073 33 Stop Measurement 17 09 56 End Data Figure 2 3 4 Typical mean data File c Histogram data file HH_MM_HISTO dat The histogram data tile records the mean value the standard deviation and the variation of the AC signal for each axis and each active sensor head for the defined period in the Histogram length contiguration parameter see Section 4 2 The data is only recorded when measuring in the Save Mode and when the Save Histogram Data configuration switch is enabled Nominal Diameter pm 80 Lump Threshold pm 6 Neckdown Threshold pm 6 AC sigma Threshold pm 0 9 Start 10 47 512. 4 Dev1 o DAQ connection box input terminal configuration maximum value E ver a al Config_Sensystem_K1_box ini NRSE o 1_D_50B_15_F aPso O Eipsp_3_139_w PSD 3 139 Sensor identification gt D SUB_15_F PSD Biros aw PSD 314i Type of Active sensor control Sensor calibration tile Sensor Light green active Dark green not active Figure 3 1 1 1 Window Set Contig Box Data acquisition and sensors hardware configuration Parameter Value Function description default setting Box No Number of the Data Acquisition box It there are more than a single 1 Data Acquisition box detined see previous section the Contig window will open one time for each box Box No will show the number of the box being configured DAQ connection Type and configuration of the used Data Acquisition box Contig Sensystem box K7_box ini DAQmx Device Name of the Data Acquisition device connected to the box Installed Dev Name devices should be selectable The available Data Acquisition devices can be controlled and tested with the National Instruments MAX Measurement amp Automation Explorer software installed with the SENSOFT Input terminal Type of terminal Data Acquisition configuration NRSE Non configuration referenced single ended Minimum value Minimum Data Acquisition voltage value 10v Maximum value Maximum Data Acquisition voltage value 10v SENS
3. Filter Contig These tabs allows the moditication of the hardware contiguration and the adjustment of several parameters in order to optimize the acquisition to fulfil the user requirements 3 1 Data acquisition tab Data Acq Inthe Data Acq tab the data acquisition parameters are specified When clicking the CONFIG button a new window opens which allows to configure the connected sensors see next section In most of the cases the grey controls in the Data Acq tab as well as in all the other tabs do not need to be changed The default values will work correctly tor 90 of the applications The white indicated controls need to be adapted to the diameter and type of filament to its speed and to the amount of data that wants to be recorded SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC SENSOFT_1_3 vi Datei Bearbeiten Ausf hren Werkzeuge Fenster Hilfe SENS PTIC 14 07 48 Main Data Acq Histo amp Save Filter config Advanced SAVE MODE scan rate 1000 00 1000 scans sec Devi DIO DAQmx Device scans to read 1000 ata time 1000 100 DC averaging length Im i ___ DAQ boxes buffer size Digital 000 2000 scans 50 Dirt acceptable level Wlacap MEASURING HEADS en Figure 3 1 1 Tab Data Acq for the specifications of the data acquisition parameters Scan rate Parameter Value Function
4. Filter attenuation 60 dB SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC 3 4 Tab Advanced For most of the applications the parameters of this tab does not need to be changed The contiguration controls of this tab allow the user to modity the RTSI synchronisation when more than a single acquisition system are used the LU and NE detection trigger parameters and the filament break detection parameters SENSOFT_1_3 vi Datei Bearbeiten Ausf hren Werkzeuge Fenster Hilfe une Main DataAcg Histo amp Save Filter config Advanced False Break detection parameters L RTSI Clock Synchro een are slum Peak detection parameters Lump Break detection mode i si Break avg tme s 0 01 Noise level v bs Break avg threshold v 20 5 LU NE release trig level um 4502 Std dev threshold v Figure 3 4 1 Filter config tab Configuration of the AC high pass filter parameters Parameter Value Function description detault setting RTSI Clock Synchro When more than one data acquisition device are used by selecting False the RTSI clock Synchro true one single clock source can be set The hardware devices must be RTSI capable and have an RTSI cable connected between them in order to allow time synchronisation USB devices cannot be synchronised via RTSI LU NE release When a LU or NE is detected the LU or NE signal must
5. PSD 2 045 PSD 2 045 W Time Pos m points Mean Std dev Variation Mean Std dev Variation 10 47 56 22 100 6000 0 03 0 76 0 57 0 02 0 72 0 52 10 48 02 22 200 6000 0 12 0 79 0 62 0 11 0 79 0 63 10 48 08 22 300 6000 0 02 0 81 0 66 0 01 0 76 0 58 10 48 14 22 400 6000 0 13 0 82 0 67 0 07 0 75 0 56 10 48 20 22 500 6000 0 07 0 81 0 66 0 01 0 78 0 61 Length 583 33 Stop Measurement 10 48 25 Figure 2 3 5 Typical histo data File SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC d Report data file HH_MM_Report dat When the measurement is stopped the number of Lumps Neckdowns and standard deviation faults AC sigma as well as the AC Standard Deviation mean value sigma mean of the whole measurement are reported in this file for each active sensor head Date 23 05 2006 09 09 26 Diameter im 360 Speed m min 100 Length m 7348 3 Lump threshold pm 4 Neckdown threshold m min 4 AC sigma threshold pm 0 8 AC histogram length m 20 Lumps Ndowns AC sigma sigma mean um PSD 2 037 W 1204 1 63 0 45 PSD 3 134 W 50 4 10 0 35 Length 7348 33 Stop Measurement 09 09 26 End Data Figure 2 3 6 Typical repor data file with two PSD dual axes sensors 3 Configuration tabs When not operating in the measuring mode apart trom the Main tab already described in the section 2 there are three other tabs Data Acq Histo amp Save and
6. description Number of the scans per second acquired for each sensor signal For high line speeds the Profile Sensor electronics supply a LU amp NE signal so that higher scan rates are not necessary detault setting 1000 scans sec Scans to read Number of scans to be read at each loop iteration 1000 ata time Buffer size size of the internal acquisition buffer 2000 scans DIO DAQmx Digital input and output DAQ device Dev Device DC averaging Period in meters of measured filament at which the DC LU amp NE 10m length signals are averaged and saved on the mean data file Dirt threshold Threshold value for the cleaning display alarm function 80 means 80 that the total transmitted light DC signal drops by 20 due to the presence of dirt DAQ devices Number of used DAQ devices 1 AC A D Setting of the fast AC Signal The analog AC Signal is available only Digital in certain sensors In the standard version the digital AC Signal is obtained by numerical filtering see Section 3 3 SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC 3 1 1 Set Config Box window hardware configuration The Set Contig Box window serves to contigure the connections between the SENSYSTEM and the sensors Set_Contfiguration_Box wi File Edit Operate Tools Window Help uy Box No DAQmx Device Name minimum value i
7. diameter Nominal diameter of the filament 40 um Lump Threshold If the LU signal exceeds this threshold value the fault is recorded 4 um NeckDown If the NE signal exceeds this threshold value the fault is recorded 4 um Threshold the NeckDown is disabled AC sigma If the AC signal standard deviation exceeds this threshold value the 1 um threshold fault is recorded Speed Speed of the filament This value is used to calculate the filament 100 m min position Length Filament length to be measured After measuring the defined length Om the measurement stops automatically For a continuous measurement the value is set to O Pos Indicator of the number of meters of filament measured since the beginning of the measurement SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC The following parameters must be entered in the Main tab of the main window the nominal filament diameter the detection threshold levels of the lumps and of the neckdowns the threshold value of the standard deviation of the AC signal the line speed and the desired tilament length to be measured These parameters are the same for all the sensors heads To start the measurement click the Start green button The text of the button will change to Stop To stop the measurement click the same button When the SENSOFT is in measuring mode see tigure 2 2 1 the contiguration tabs are not shown any more an
8. extremely thin filaments and depending on the sensors sensitivity the break detection based on the Lump and AC signal levels could lead to false break detection indications In this case it would be better to use the NE signal it available detault setting Off Break average time Averaging time of the Lump and AC break detection sec Break avg threshold Signal mean value threshold of the Lump and AC break detection 0 5 v Std dev threshold Signal standard deviation threshold of the Lump break detection 0 014 v SENSOPTIC S A e 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH e INFO SENSOPTIC CH
9. that no signal is detected indicating tailure erroneous hardware contiguration sensor not power supplied or broken sensor A white icon means that no tilament is detected either because it is out of the measuring range or because it is not moving at all By clicking an icon the corresponding sensor head signals are graphically visualised see next section SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC 2 2 Signals visualisation By clicking a sensor head icon two windows are opened and the corresponding sensor signals are visualised the Chart window and the Histogram window Even if several sensors can be operated simultaneously by the SENSOFT only the signals of one single sensor head with one or two axes can be visualised simultaneously e Chart window This window shows three charts The first one with the DC signal Depending on the sensor one ore two axes are shown DC X in blue and DC Y in red The second chart corresponds to the AC signal The AC X signal is blue and the AC Y signal is red The third chart contains the Lump LU signal displayed in blue and the NeckDown signal NE displayed in pink The horizontal scales of the charts in meters can be changed using the Length control The vertical scales of the charts can be displayed in um as well as in volts The scale limits of the charts vertical axes can be manually changed by clicking on th
10. the histogram It is important to set the maximum 5 um value and minimum values of the histogram correctly according to the type ot measured filament It the max and min are set too small and the AC signal exceeds these limits the standard deviation calculations will be erroneous On the other hand if the limits are set too high the histogram shape will appear very narrow in the graph with a poor resolution Histogram min Minimum value of the histogram 5 Um value Save Histogram Allows to save or not to save the histogram calculated data for the Save data defined filament length histogram length Histogram data will only be saved in the Save mode see chapter 2 3 Data Save Path By default the data tiles are saved in the Data folder inside the SENSOFT program folder A different folder can be interactively selected by clicking on the Data Save Path Icon New file every By default on Save Mode one set of files is created until the end of O min the measurement If a value different of O is set every X as defined minutes a new set of files will be created See section 2 3 for more details about saving and files SENSOPTIC S A e 6616 LOSONE SWITZERLAND e WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC 3 3 Tab Filter Config configuration of the digital filter function The properties of the high pass filter of the AC signal are defined in the tab Filter Contig When the AC A D sw
11. OPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC 3 2 Histogram and Save tab Histo amp Save The standard deviation of the AC signal is a characteristic measure of the surface quality of the observed filament It is visualized in the form of two histograms one for the overall measured filament length and one tor a specitied periodic length for example all the last 100 m This is usetul to monitor on line changes in the production quality SENSOFT_1_3 vi a t PSD 3 139 Datei Bearbeiten Ausf hren Werkzeuge Fenster Hilfe gt ee pts sun total pts 5000 0 5 SEN 14 10 54 i 0 4 eli Main Data Acq Histo amp Save Filter config l Advanced l Histogram configuration parameters 0 3 Data Save Path Data if not defined 4 Histogram length m Histogram max value km sio 10 0 Save Histogram Data Histogram of bins Histogram min value um re sw 10 0 New file every min 70 MEASURING HEADS Figure 3 2 1 Histo amp Save tab Histogram of AC signal configuration Parameter Value Function description detault setting Histogram length Period in meters of measured filament at which the histogram is 10m calculated and saved in the histogram data file Hist of bins Number of bins of the histogram between the detined minimum and 100 bins maximum values Histogram max Maximum value of
12. PTIC CH SENS PTIC 2 3 Data Saving SAVE MODE NO SAVE MODE Measuring data is saved continuously in Data measurements are not recorded a set of dat files but signals can be visualised SENSOFT_1_3 vi SENSOFT_1_3 vi File Edit Operate Tools Window Help O E File Edit Operate Tools Window Help mp n SENS PTIC 114 39 08 114 37 49 Nominal Diameter um F 80 Speed m min 1000 Nominal Diameter um F 80 Speed m min 1000 Lump Threshold ym i 8 Length m 0 Lump Threshold um i 8 Length m 0 NeckDown Threshold um i 8 Pos m 950 NeckDown Threshold um a 8 Pos m 1183 AC Sigma Threshold um i 1 00 stop AC Sigma Threshold ym H 1 00 C sTo MEASURING HEADS DJ MEASURING HEADS Figure 2 3 1 SAVE MODE and NO SAVE MODE fr 2006 09 05 Efx File Edit View Favorites Tools Help ae sack r gt pi pa Search E Fokes Hee Address C Documents and Settings LabUser My Documents SensoftSensoft_1 3 Datalz006 09 05 bi 0 Folders x Name Type Date Modified Desktop Prin File Folder 9 5 2006 10 33 AM i G My Documents 1032 HISTO dat DAT File 9 5 2006 10 34 AM oO My eBooks 10 32 MEAN dat DAT File 9 5 2006 10 34 AM a My Music 10_32_N01_PSD 2 045 dat DAT File ofS 2006 10 34 4M A My Pictures 10 32 REPORT dat DAT File 9 5 2006 10 34 AM iQ Sensoft 10_47_HISTO dat DAT File 9 5 2006 10 48 AM a G sensoft 1 3 10_47_MEAN dat DAT Fil
13. SENS PTIC SENSOFT USER MANUAL v 1 3 16 MF SENSOFT_1_3 vi x K Graph_Data vi Datei Bearbeiten Ausf hren Werkzeuge Fenster Hilfe E Datei Bearbeiten Ausf hren Werkzeuge Fenster Hilfe FA SFT ac gt gt SENS PTIC 160425 SAVE MODE SENSPTIC Length m 100 00 vmm tum ai Nominal Diameter um _ 75 Speed m min 100 Lump Threshold um 5 Length m 0 0 NeckDown Threshold um i 5l Pos m 880 AC Sigma Threshold um 1 20 stop MEASURING HEADS Time 16 04 13 7 Graph_Histogram vi J m ae m EEE LU um 8 3 SE PSD 4 199 NE um 00 o um 9 00 80 Total m pts 6000 total pts 528000 Histograms Estimated total std dev D7 0 92 10 93 10 Last m Estimated mean 0 04 0 03 Estimated std dev 0 92 1 06 January 2007 SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC 1 Introduction SENSOFT is a data acquisition and data visualisation software specially designed for PROFILE SENSORS The software in combination with the data acquisition system hardware SENSYSTEM provides a powerful tool for continuous monitoring and quality control of surface detects and diameter irregularities during the manufacturing and processing of tine wires filaments and fibers Even small detects running at high line spe
14. art window 2 Graph_Histogr Bu ne LU um 40 0 s B SENSOPTIC PSD 3 139 nemi 00 DO o um 0 00 eg 860 ein ado em 900 910 920 ai 40 oio 900 Total m ee pts __ 6000 total pts __ 54000 Estimated total std dev 0 6 0 86 0 93 os A Histogram en l hoo fitimi ry window Estimated rnean 027 f 1 0 06 0 04 TE f E Estimated std dev od ae Ba _ 0 85 0 89 6 00 4 00 2 00 en 2 00 4 00 6 00 Figure 2 2 1 Sensor DC AC Lump Neckdown signals and AC Histogram graphics windows SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC Histogram window This window shows the histograms of the AC signals This window appears on the screen only atter the measurement of the detined Histogram Length see section 3 2 has been completed The histograms will be updated continuously at this Histogram Length period The Printed chart tiles are recorded in the Data YYYY MM DD Print folder see figure 2 3 2 where YYYY MM DD is the date of the measurement Year Month and Day When measuring a new type ot tilament it is recommended to run first a test measurement without saving any tile see the following section to find the best contiguration parameters The contiguration parameters of the hardware and the data acquisition are explained in the next sections 3 1 to 3 3 After choosing the optimal parameters thr
15. d the controls values diameter thresholds speed and length cannot be changed To change any parameter the measurement must first be stopped then the changes applied and thereatter the measurement restarted It is possible to open a contextual help window see figure 2 1 to have explanations about the main SENSOFT controls The contextual help window can be opened in the Help menu or by clicking simultaneously Ctrl H keys Once opened by pointing with the mouse icon the desired control the corresponding explanation is displayed in the help window While the SENSYSTEM is measuring the icon corresponding to each sensor head the number of icons depends on the detined hardware contiguration can have ditterent colours corresponding to its status No signal detected Failure PSD 3139 No filament filament detection is inactive by default see chapter 3 4 Filament OK Fault exceeding the defined threshold values Filament OK Sensor is dirty CLEANING REQUIRED a Fault exceeding the defined threshold values Sensor is dirty CLEANING REQUIRED Figure 2 1 2 Different colours of the sensor head icons In normal operating conditions the icons should be light green It the icons remain red too long more than several seconds the defined threshold levels are too low for the filament being measured If the colour is dark green or dark red the measuring head should be cleaned following the sensor instructions manual A black icon means
16. decrease of 0 5 um trigger level at least this value in order to rearm the trigger and seek a new LU or NE Noise level Atter than the LU or NE has been rearmed the LU or NE signal 0 01 v must increase of at least the noise level from one point to the next one in order to register a new LU or NE When this value is set to a value too low and depending of the signal noise it could happen that when there is a single lump several are detected SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC Parameter Value Break detection mode Function description Several different criteria can be used to detect the tilament break 1 Off no active detection of the filament break 2 Neckdown A single neckdown greater than 80 of the filament diameter or that makes the neckdown signal go in saturation are interpreted as a tilament break 3 Lump If the LU signal mean value and the LU signal standard deviation values calculated in the detined averaging time are under the detined thresholds this will be interpreted as a tilament break 4 AC An AC signal standard deviation value calculated in the detined averaging time under the detined threshold is interpreted as a tilament break Notes A filament break cannot be distinguished from a filament stop For most of the applications the default parameters should allow a reliable filament break detection For
17. e 9 5 2006 10 48 AM oO Config Data E 10 47 _N01_PSD 2 045 dat DAT File 9 5 2006 10 48 4M 3 Data E 10_47_REPORT dat DAT File 9 5 2006 10 48 AM 5 2006 04 13 E 2006 05 23 E 2006 06 22 5 2006 08 25 2006 08 30 2006 08 31 gt 2006 09 01 l 2006 09 05 E Print H 4 My Computer ES J My Network Places Recycle Bin Figure 2 3 2 Saved data files in SAVE MODE SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC When measuring in SAVE MODE the measurements are recorded on a set of text ASCII tiles dat These files can be opened and edited with any text editor and charts can be created with spreadsheet programs such as Excel or OpenOffice The files are recorded in the Data folder and in a sub folder named with the date of the measurement start following the format YYYY MM DD Year Month and Date as shown in figure 2 3 2 All the tile names start with HH MM Hour and Minute of the measurement s beginning and finish with the extension dat The Data folder is by default located in the SENSOFT folder but a different location i e A network drive can be defined in the Histo amp Save contiguration tab see section 3 2 There are four ditterent types ot files the fault data the mean data the histogram data and the report a Fault data files HH_MM_NXX_Sensor Name dat One file is created for each active
18. eds can be detected and characterised in real time with high accuracy SENSOFT which is programmed in LABVIEW National Instruments allows automatic and continuous data saving of multiple lines in a user friendly way using a single personal computer 2 Program Operation This section describes how to operate the program and how to acquire visualise and save the data To run the SENSOFT double click on it s icon on the Windows desktop on the Start Sensoft Windows menu or directly on the folder where it is located My Documents Sensott Sensott 1 3 Sensoft_1 3 exe by default Run Stop the program Close the window SENSO 7T_1_3 vi Datei Beafbeiten Ausf hren Werkzeuge Fenster Hilfe SENS PTIC 13 59 48 Configuration tabs Main Data Aca Histo amp Save Filter config Advanced Nominal Diameter um 100 Speed m min 1000 Lump Threshold um 8 Length m 0 NeckDown Threshold um 8 Pos m 66 7 AC Sigma Threshold um 4 _ 1 00 START Start Stop the measurement MEASURING HEADS mm Sensor Icons Wire monofilament or fiber produced length in m since the measurement started The lenght aa Contextual help window g Figure 2 1 SENSOFT main window SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC 2 1 Main window To stop the program the top red right X button of the SENSOFT window is used After stopping the program the ma
19. em with the mouse and introducing the new values with the keyboard By clicking on the Print button the charts and the indicators values are saved in a jpg file which is automatically opened on the computer s browser Every time that the Print button is clicked a new browser window is opened Therefore it is recommended to close each time the browser window in order to avoid having too many browser windows opened simultaneously which consume PC memory and resources The charts windows can be closed by clicking on the red OK button u n Main window Change charts X Change charts Y Save jpg and Close graph scale length scales units open in browser windows 0 Ed Graph_Data x File Edit Operate Tools Window Help SEN File Edit Operate Tools Window Help kam gt 8 SENS PTIC 14 39 08 SAVE MODE SENS PTIC Length m 4 100 00 vM um PRINT OK PSD 3 139 r 85 0 Nominal Diameter um i 80 Speed m min 1000 550 as Lump Threshold um 3 8 Length m 0 m min 1000 a NeckDown Threshold um 8 Pos m 950 Er 75 0 79 9 AC Sigma Threshold um 3 1 00 stop See LU 1 55 5 0 MEASURING HEADS Blac NE 0 z A vis ACo 0 5 0 COo 00 ein eto ein sco sin sto slo sin ala 20 0 5 Tme 14380 Ch
20. esholds levels histogram limits and AC high pass filter period the measurement can be restarted in the Save Mode SENS PTIC PSD_3_134_W 2 51 44 4 PM Pos m 1560 0 Lump um NDown um AC SIGNAL um DC SIGNAL ym LU amp NE SIGNAL um Estimated total std dev Last m Estimated mean Eat std En 12 7 2005 12 51 46 PM 220 0 215 0 aon eey NEAR 1710 1710 a SAN N NANNY i 10 0 l en 1710 1710 i i 1710 1710 AC Histogram pts 120000 totalpts 1680000 0 2 0 18 Nein 0 TRA 0 16 Yen Un a t al 0 14 M ia 0 12 fi N 0 1 0 08 N 0 06 A 0 04 a 7 ou 0 02 p7 ae g Ban o t a al i SEE 10 0 80 60 4 00 200 0 00 2 00 4 00 6 00 8 00 10 0 um Figure 2 2 2 Print format of charts and histograms SENSOPTIC S A e 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH Wire 210 um Horizontal scale length 1 m Wire speed 1200 m min AC Signal Diameter variations of 5 um X and Y axes LU Signal blue Mean level 13 um approx NE Signal pink Mean level 16 um approx AC Histogram X axis blue and Y axis red Light colour histograms correspond to the last 120m and dark colour histograms correspond to the histogram from the start of the measurement average 2 6 um mean value of the last 120 m and for the whole Standard deviation of AC signal measurement INFO SENSO
21. in window remains opened but the upper Arrow see figure 2 1 1 on the lett turns white When the SENSOFT is stopped the time indicator is not updated any more By clicking on the Arrow button Run the SENSOFT is started again When the SENSOFT is opened all the control values and configuration parameters see section 3 are set to their detault value If any control value or contiguration parameter is moditied the changes will be lost when exiting the SENSOFT Time display Save mode automatic data saving Do not save mode no data saving see Section 2 3 KJ SENSOFT_1_3 vi Line speed File Edit Operate Tools Window Help gt wen sushenc 11 0534 _ SAVEMODE Y Filament length to be measured Nominal Diameter um 70 Speed m min 100 Continuous visualisation of the length of Lump Threshold ym Length m 0 the measured filament from start m NeckDown Threshold um E Pos m 225 225 AC Sigma Threshold um Start Stop measurement STOP MEASURING HEADS Each sensor head has its own alarm icon as PSD 2037 When a defect is larger than any of the threshold values the green icon turns red and the corresponding data is stored automatically in a file see Section 2 3 The icon can be clicked to open a window with signals visualisation Figure 2 1 1 View of the SENSOFT main window display Parameter Value Function description detault setting Nominal
22. itch of the Data Acq tab is set to Analog see section 3 1 the digital filter contiguration parameters are not used In this case the sensor AC signal tilter characteristics are fixed and given by the sensor electronics refer to the sensor technical manual SENSOFT_1_3 vi Siz Datei Bearbeiten Ausf hren Werkzeuge Fenster Hilfe up SENS PTIC 14 12 46 NO SAVE MODE Main DataAcg Histo amp Save Filter config Advanced Highpass filter specifications Filter Topology Butterworth Lower Pc period m 500 00 Order ie PB Ripple de none 7 SB Attenuation de A6000 MEASURING HEADS Figure 3 3 1 Filter config tab Configuration of the AC high pass filter parameters Parameter Value Function description default setting Filter Topology Type of filter Butterworth Lower Pc period Low cut period Diameter variations over the defined period will be 50m filtered and will thus not be reflected on the AC signal This value should be set according to the filament characteristics If the value is set too low there is the risk to miss slow diameter variations with period over the defined one If the value is set too high the AC could take a long time before returning to O if there is a step shaped signal can be caused by a very big fault or by the tilament going out of the measuring range PB Ripple Bandpass Ripple in dB 1 dB Order Order of the AC filter 2 Attenuation
23. sensor head XX corresponds to the number of the active sensor head starting at Ol and up to the number of the active heads Sensor Name corresponds to the identitication name given to the sensor head in the Contiguration Window see section 3 1 1 In this tile all the Lump Neckdown and AC sigma standard deviation faults exceeding the defined threshold levels are recorded For each fault the time the position calculated with the time and the given speed as well as its size are saved in one line of the file When a tilament break is detected it is recorded in this file too Nominal Diameter pm 100 Lump Threshold pm 3 Neckdown Threshold pum 3 AC sigma Threshold pm 0 4 Start 15 49 13 Time Pos m Lump um NeckDown um AC sigma um 15 49 14 48 Sad 4 1 0 0 15 49 19 20 11 6 5 1 0 0 15 49 37 41 41 9 es 0 0 15 49 50 27 63 4 6 5 0 0 15 50 09 28 95 0 Seo 0 0 15 50 21 32 1151 Zl 0 0 15 51 34 58 237 2 3 4 0 0 15752420 76 314 1 4 1 0 0 17 09 42 06 8049 6 Sa 0 0 Length 8073 3 Stop Measurement 17 09 56 End Data Figure 2 3 3 Example of a typical fault data file SENSOPTIC S A 6616 LOSONE SWITZERLAND WWW SENSOPTIC CH INFO SENSOPTIC CH SENS PTIC b Mean data file HH_MM_MEAN dat The mean data tile records the average values of the DC Lump LU and NeckDown NE signals for each active sensor head for the defined period in the DC averaging length configuration parameter see Section 3 1
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