Displacement measuring apparatus

Details Displacement measuring apparatus Displacement measuring apparatus

1988-07-25

1990-04-03

Chin, Gary

Boots, shoes, and leggings

33504, 33505, 73 1J, 377 17, G06F 1536, G05B 1928

Patent

active

049146092

ABSTRACT:
An oscillator outputs an oscillator frequency corresponding to a moving distance of a probe. A counter counts the oscillator frequency of the oscillator. A computer calculates the moving distance. A display unit displays the moving distance computed by the computer. A voltage booster and a voltage stabilizing circuit are connected between the oscillator and a battery. The driving voltage from the battery is supplied to the oscillator through the voltage booster and the voltage stabilizing circuit, and is supplied to the counter, computer and the display unit without passing through the voltage booster and the voltage stabilizing circuit in order to reduce the power dissipation.

REFERENCES:
patent: 4550418 (1985-10-01), Deis
patent: 4587622 (1986-05-01), Herzog
patent: 4588989 (1986-05-01), Yasuda et al.
patent: 4602196 (1986-07-01), Matsui
patent: 4608657 (1986-08-01), Manome et al.
patent: 4736313 (1988-04-01), Nishimura et al.

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