Velocimeter, signal processing method, and driving system using

Details Velocimeter, signal processing method, and driving system using Velocimeter, signal processing method, and driving system using

1996-10-21

1998-11-03

Buczinski, Stephen C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

G01P 336

Patent

active

058317201

ABSTRACT:
A velocimeter includes a light source for irradiating light onto an object to be measured, a light-receiving element for receiving scattered light from the object and outputting a light-receiving signal upon receiving the scattered light, a signal processing circuit for obtaining velocity information of the object to be measured by performing signal processing of the light-receiving signal output from the light-receiving element, a bandpass filter arranged in the signal processing circuit and having a function of passing frequency components near the frequency of the light-receiving signal to be obtained when the object to be measured is in a still state, and a switch arranged in the signal processing circuit to activate the bandpass filter substantially in the signal processing circuit when the moving velocity of the object to be measured is low.

REFERENCES:
patent: 3915572 (1975-10-01), Orloff
patent: 4167329 (1979-09-01), Jelalain et al.
patent: 4413905 (1983-11-01), Holzapfel
patent: 5229830 (1993-07-01), Ishida et al.
patent: 5483332 (1996-01-01), Takamiya et al.
patent: 5502466 (1996-03-01), Kato et al.
patent: 5589858 (1996-12-01), Kadowaki et al.
patent: 5696578 (1997-12-01), Ishida et al.

Affiliated with

Also associated with

Rating

Velocimeter, signal processing method, and driving system using does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Velocimeter, signal processing method, and driving system using , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Velocimeter, signal processing method, and driving system using will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-695777