Speedometer capable of providing real-time speed pulse signals

Details Speedometer capable of providing real-time speed pulse signals Speedometer capable of providing real-time speed pulse signals

1993-07-06

1996-01-30

Williams, Hezron E.

Measuring and testing

Speed, velocity, or acceleration

Illuminated reading device

340441, 340936, G01P 310

Patent

active

054873037

ABSTRACT:
A speedometer capable of providing real-time speed signals, that can be combined with different functional devices and speed control units, to facilitate the automatic recording and controlling of the speed, thereby forming a multifunctional automatic monitoring and controlling device for vehicles. Photoelectric sensors are disposed in the conventional mechanical magnet-type speedometer, and a LED is mounted on the speed indicating needle shaft. The ON and OFF states of the LED can be controlled by a signal from within or from external of the vehicle. The output of the photosensors are connected to a multichannel photoelectric converter.

REFERENCES:
patent: 2771597 (1956-11-01), Freedman
patent: 3237012 (1966-02-01), Treffeisen
patent: 3331200 (1967-07-01), Byron et al.
patent: 3909780 (1930-09-01), Huffman

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