Digital Instrumentation System for Engine Testing

Document Number: 720877

Date Published: February 1972

Author(s):
C. W. Formwalt - John Deere Waterloo Tractor Works
J. L. Frank - John Deere Waterloo Tractor Works

Abstract:
This paper discusses the Dynamometer System of Accurate, Unambiguous Readouts (Dinosaur), a new system used in the performance testing of engines at John Deere. Readouts are digital, and data are in engineering units; thus, the engineer supervising the test can make decisions regarding the conduct of the test while there is still time to modify the test program. Testing time is reduced as the operator need not perform calculations, data conversions, etc. Test setup and teardown time is minimized by checking all instrumentation transducers for proper operation prior to the test at which time a bulkhead system with quick-disconnect connectors is utilized. Among the subjects discussed are the operation and design of Dinosaur, the method of digital computation, and the use of a new programmable-cascadable frequency divider.

Product Status: In Stock

Purchase more technical papers and save! With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay. Learn more >