to System 85 Brochure in format.
Contents
1. 0 inches Comment Same simulated pressure curve applied to both pressure inputs Barely preceptible delay on Pressure B red curve with 10 kHz Bessel filter compared to Pressure A Similar rise time and peak pressure FIRE O MUZZLE SCREENS hrii BANG O0 QQQ 7o k 98 O O OO FIRE PRESSURE START STOP MICS PULSE SWITgH START MID STOP DoWNRANGE Made in U S A SHOTS SYSTEM 85 INPUTS FIRING SIMULATOR OUTPUTS Qa Rear Panel Showing System 85 Inputs and Firing Simulator2. two pressure signals at either 5 or 10 us intervals Sampling begins in anticipation of a shot and continues for 320 samples after Pressure A reaches 1 volt The system returns the last 400 samples of each pressure Optional Bessel and Butterworth low pass filters may be applied before analysis and display but raw data is always stored without filter application Cemex Software Drivers The interface between the System 85 and the controlling PC is cleanly defined Users can provide appropriate software drivers if the System 85 hardware is used for specialized tests employing Labview or other languages Firing Simulator The requirement for a firing simulator has been demonstrated repeatedly An extensive simulator is built into each System 85 Outputs include a fire signal peak pressures in steps from 1 to 8 volts muzzle screen signals and simulated signals from the acoustic target microphones for a target group While the simulator is conveniently housed in the box with the System 85 it is electrically independent It even has its own battery power supply Additional Information Available Try as we might we cannot describe the System 85 in a short brochure We hope only to convince you to learn more about the System 85 The System 85 will sell itself A good introduction is having the System 85 software installed on your desktop computer with the User s Manual in your lap We will be happy to send you a copy of the Us
3. 8 3 3334 71678 3089 0 325 1 98 10 01 50000 148 49950 148 4 3333 71678 3090 0 328 1 98 10 01 39975 147 39925 146 5 3334 71684 3088 0 324 5 94 9 99 30025 146 29975 145 6 3333 71687 3089 0 327 9 94 9 94 20075 146 20000 145 7 3334 71685 3088 0 324 9 99 5 95 10025 143 9950 141 8 3334 71682 3088 0 325 10 00 1 98 80000 150 79925 150 9 3333 71684 3089 0 327 10 00 1 98 69975 149 69925 149 10 3333 71689 3089 0 327 9 99 5 95 60025 149 59950 149 1 3333 71691 3088 0 326 9 93 9 93 50025 148 49950 148 12 3334 71690 3087 0 324 5 94 9 99 40025 147 39950 146 13 3334 71687 3088 0 324 198 10 00 30025 145 29975 145 14 3333 71688 3089 0 327 1 98 10 01 20075 146 20000 145 15 3334 71693 3087 0323 5 95 9 99 10025 142 9975 142 16 3334 71696 3087 0 323 9 94 9 94 80000 151 79950 150 17 3333 71695 3088 0 326 9 99 5 94 70000 150 69950 149 18 3333 71692 3088 0 326 10 01 1 98 60025 149 59975 149 19 3334 71694 3087 0 323 10 02 1 98 50000 148 49975 148 20 3333 71698 3088 0 325 10 00 5 95 40000 147 39950 146 SUMMARY 230 0 ft T arget Pressure Pressure Veli3 TOF2ZT Vel T BC Horm Vert PeakA RiseA PeakB RiseB Avg 3334 71688 3088 0 325 0 00 0 00 47013 148 46953 147 SD l 6 0 002 8 44 8 44 22010 2 22011 3 HI 3334 71698 3090 0 328 10 00 10 01 80000 151 79950 150 LO 3333 71678 3087 0 323 10 02 10 01 10025 142 9950 141 ES l 20 3 0 005 20 02 20 02 69975 9 70000 9 Rad SD 11 93 Group 28 11 Mean Radius 11 54 Grid 4
4. Oehler System 85 Ballistic Instrumentation for the Next Generation The System 85 replaces the venerable Oehler Model 82 The System 85 measures two pressures action time muzzle velocity and targeting with time of flight and ballistic coefficient It can operate as a machine gun chronograph Each System 85 includes its own built in firing simulator for training system set up and eventual trouble shooting It automatically exports all test data to Excel files The following data are available for display and printed report during normal slow fire testing Pressure Curves for test PPY Basic f Pressure A Mid Case or Casemouth Graph vs Time Peak Pressure Time to Peak Rise Time Area Under Curve Optional Low Pass filters Pressure B Mid Case Casemouth or Barrel Graph vs Time Peak Pressure Time to Peak or Action Time Rise Time Area Under Curve Found 8 PSO 20 000 maD 200 Optional Low Pass filters Instrumental Velocity Velocity Proof Velocity Difference arget for test Pr AB MY Trgt smpl Downrange Target Target Coordinates Horizontal and Vertical Grid Size 10 Time of Flight Group Size 2 72 Ballistic Coefficient Radial SD 0 64 Velocity at Target Mean Radius 0 73 jc Hole Size 0 31 Target Size The following data are displayed and reported for each round during machine gun mode Instrumental Velocity Epoch Time Rate of Fire Pemer Displayed Graphic and Numerical Data Dur
5. er Training costs are associated with any new system Operators can use the System 85 with minimal training Oehler s experience in ballistic testing lets us think like the operators think and that lowers training costs The built in firing simulator allows training without the burden of actual firing range time Often unrecognized continual support is required during the lifetime of any system The Model 82 is still in common use but it was designed even before computers used DOS Oehler adapted the original design and hardware so that it functions with later computers Equipment built in house must receive similar support from in house engineers hardware suppliers and software vendors Oehler provides such support economically Very few companies support products over long lifetimes of ten or twenty years Oehler tries To assure such support we urge you to consider an extended warranty for the System 85 This will include all software and firmware updates semi annual calibrations and the expectation of over night delivery of loaners in the event of hardware malfunction A fee of ten percent of the prevailing purchase price will be charged each year Damage caused by bullets or lightening will be repaired at extra charge Oehler can provide this service cheaper than you can do it in house Demer Available Oehler offers both replacement loans and demo systems Oehler s hardware and software are real Oehler offers m
6. er s Manual plus a CD with the set up file and some sample data You can replay our tests print reports transfer data to Excel and do everything except fire your own tests For a thorough evaluation of the System 85 it is best to use it Loan systems are available each includes its firing simulator You can simulate a complete instrumentation system on a tabletop You can set up tests fire simulated rounds observe the display print reports export data to Excel and even simulate sensor faults Better yet you can take the System 85 into your lab and connect your sensors to see how it works in the real world We d be pleased to arrange for your demo system Oehler Research Inc PO Box 9135 Austin Texas 78 766 Phone 512 327 6900 sales oehler research com Why Oehler System 85 Economical Customers buy Oehler systems to save money The users appreciate the accuracy convenience and reliability of our equipment but purchase decisions are made by those with the checkbook They buy based on long range economy Prices for ballistic test equipment are primarily determined by development costs That s the nature of a small market requiring specialized equipment Historically Oehler has funded all development costs for their products These costs are recovered as equipment is sold each piece sold carries the burden of a fraction of the costs Our policy of dividing the development costs results in lower costs for each us
7. ing set up the operator is prompted to enter appropriate data for test conditions gun and transducer information load information and other items of interest This information is included on the printed report and is also transferred to the Excel data file at the completion of a test Appropriate statistics are continually available for each measured data channel You can select the two pressure curves and up to ten parameters for display and report All available channels are stored in Excel along with raw times and raw data for the pressure curves Input Requirements The System 85 communicates with the Windows PC via the powered USB port Power for the System 85 comes from the USB bus The following input signals are recognized at standard levels through standard connectors Fire 12 volt pulse an alternate connector allows direct connection to action time switch PressureA 0 10 volt analog signal Typically used for chamber pressure PressureB 0 10 volt analog signal Typically for down barrel port pressure Start 12 volt pulse from muzzle velocity start screen Mid 12 volt pulse from middle screen Optional redundant measure of velocity Stop 12 volt pulse from muzzle velocity stop screen Target Four nominal 12 volt pulses from the four microphones of an acoustic target located downrange Pressure Conversion and Capture The System 85 uses two 12 bit A D units to simul taneously sample
8. ore than just user want lists and vendor s promises We ve paid the development costs and we have the proven hardware on the shelf This brute force approach assures that you have a reliable source for future hardware requirements As loan units are returned they are repaired and recalibrated as required and are ready for dispatch Universal Language The reports printed by the System 82 established a universal language for test results Reports from the System 85 are even more complete but they are still simple It s easy to share data between individuals between departments or even between facilities and organizations The report for a twenty shot test is complete on one page it fits a copy machine Reports are in pdf format for convenient e mail Complete Archives The System 85 can automatically export all test data as an Excel file to a designated folder We chose the Excel format because it is stable and most users are familiar with it You can extract all required information with minimal cost The System 85 also saves the test data in its own TestData s85 files These files of raw data and test conditions can be replayed to see results on the screen to print extra copies of the report or to accept edited test conditions Single Source Responsibility Oehler offers single source responsibility We ve provided pressure read outs chronographs velocity screens and acoustic targets for many years You ve taught u
9. s much about ballistic testing from the big picture down to nitty gritty gremlins that bedevil even the most experienced users If our systems don t work like you expect you call Oehler Sample Report of Test Using Built in Firing Simulator Test Simulator Test PressureAB 2f Gun Built in Simulator Load Built in Simulator Operator Ken O Mfg Model Oehler Built In Bullet Mfg i Test Bay Oehler Office Caliber Bullet Wet 0 0 grains Muzli to Ser1 5 00 feet Serial 001 Bullet Style EHLER Scri to Scr3 10 000 feet Vel Correction 0 fps Be 0 325 Gl Muzi to Tret 240 00 feet Press Correction 0 PSI Powder Target Size 36 00 inches Xducer A ID Powder Wet 0 00 grains Temperature 49 F Offset Press 0 PSI Lot Number Humidity 78 PC Press 0 300 PC PSI Primer Altitude 30 feet Press Volt 10000 PSI Brass Baro Press 29 53 in Hg Filter No filtering Max Avg Pre Time Scale 2 Msec Xducer B ID Avg Velocity Test Date 1 5 2012 Offset Press 0 PSI Note Test Time 12 21 PC Press 0 300 PC PSI File C Documents and Settings Ken Press Volt 10000 PSI Reports C win s85 ExportedReports Filter Bessel 1OkHz 4th order Excel C win_s85 ExportedReports SYSTEM 85 SHOT DATA 230 0 ft arget Pressure Pressure Rnd Veli3 TOF2ZT Vel T BC Hors Vert PeakA RiseA PeakB RiseB l 3334 71682 3088 0 325 9 95 9 94 69950 150 69875 149 2 3333 71681 3089 0 328 5 95 9 99 60000 149 59925 14
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