International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Caterpillar Inc. has been testing construction and mining equipment using Computerized
Analysis Vans for two decades. During our latest van upgrade, we chose to move to
PCM/FM from FM/FM mainly to increase the channel count. We also replaced our old
signal conditioning that used span and balance potentiometers with computer
programmable signal conditioning. This new signal conditioning requires that the gain and
balance point be calculated for every channel on each test. The formulas for these
calculations depend on the sensor, the signal conditioning card used, and the test
requirements. Due to the number and variety of machines tested at the Caterpillar Proving
Grounds, these calculations needed to be automated. Using a few initial parameters and
the information from our sensor calibration database, each channel’s balance point, gain,
and expected slope are calculated. This system has increased productivity, accuracy, and
consistency over manually calculating these parameters. This paper covers the sensor
database, the calculated parameters and an overview of the way the system works.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/607535 |
| Date | 10 1900 |
| Creators | Tate, Jeffrey J. |
| Contributors | Caterpillar Inc. |
| Publisher | International Foundation for Telemetering |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Proceedings |
| Rights | Copyright © International Foundation for Telemetering |
| Relation | http://www.telemetry.org/ |
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