Development of a vibration control system for testing radar and laser speed-measurement devices.

摘要

Speed-measurement devices used to enforce speed laws on our nations highways must be accurate under a wide variety of operating conditions. To help achieve this goal, NHTSA has published a set of performance specifications and testing protocols for these devices, one of which tests the accuracy when the device is mechanically shaken.;In the past at Michigan State University, there was no automatic control system to perform these vibration tests; so, the tests were conducted manually. This dissertation project developed a computer-controlled vibration system.;The result of this dissertation project was the development of an automatic control system for performing the NHTSA vibration testing protocols which was accurate to within 0.06 g's. This control system is currently being used to test the operation of radar and laser speed-measurement devices and has replaced the old method of manually controlling the equipment.