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Non-Contacting Sensors for Automotive Applications
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English
Abstract
The current trend in automobile design is for more sophisticated electronic controls for systems which include power train, suspension and steering. This necessarily increases the need for low-cost reliable sensors to measure the various parameters of speed, position, torque etc. Sensors currently used often employ contacting elements to translate these measurements into electrical analogs. These devices inevitably wear and suffer loss of performance in service. There is, therefore, a need for a new generation of non-contacting devices which will not wear out within the anticipated lifetimes of motor vehicles.
This paper describes some of the technologies presently available for non-contacting sensors and discusses some of their advantages and disadvantages. Also described are improved performances of conventional contacting sensors which should always be considered before opting for the more expensive technologically advanced devices.
Topic
Citation
Wells, R., "Non-Contacting Sensors for Automotive Applications," SAE Technical Paper 880407, 1988, https://doi.org/10.4271/880407.Also In
References
- Schmidt, S. “Inductive Displacement Transducer with Unipolar Output,” US Patent 4,678,991 July 7 1987
- Nadkarni, G. Simoni A. Simmons, J. “Fabrication of High Sensitivity Thin-film Indium Antimonide Magnetoresistors,” Solid State Electronics Pergamon Press Great Britain 1975 Vol. 18 393 397
- Murakami, K. “Contactless Potentiometers are Noisless, Frictionless and More,” JEE June 1987 75 77
- Fleming W. Wood, P. “Noncontact Miniature Torque Sensor for Automotive Application,” SAE Paper 920206
- Nonomura, Y. Tsukada K. Takeuchi, M. “Measurements of Torque with the Intra-bearing Torque Sensor,” SAE Paper 870472