Research and Development of Instrumentation Program, Vehicle Performance Recorder.
Abstract
At the present time automotive test data relative to use and operational environment is gathered by tachographs, analog tape recorders, and pulse code modulation (PCM) encoders. This project was to develop a Vehicle Performance Recorder (VPR) to augment the existing automotive test capability. The design objectives of the VPR were: self-contained, analog and digital inputs, digital recording, programmable, not require an on site or skilled operator, 8-hour capacity, 0.1% analog accuracy, 30-second time resolution, useable in US Army Aberdeen Proving Ground (APG) environment, 28 VDC operation, and internal battery operation. A unit which meets these objectives is described in detail. The VPR uses a commercial cassette recorder and a custom controller to provide a flexible, low-power consumption data acquisition system. A description of alternative systems is also provided. It is concluded that: (a) the VPR satisfies a wide variety of measurement needs; (b) commercially manufactured units now exist with a wide spectrum of capabilities; (c) the Army developed Vehicle Monitoring System (VMS) may be available in the future; (d) no single unit satisfies all possible data acquisition requirements. It is recommended that a commercially available unit be used if possible; if not then the VPR be used. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1979
- Accession Number
- ADA073439
Entities
People
- C. L. Francis