Device for detecting rotation speed having feedback circuitry an

Details Device for detecting rotation speed having feedback circuitry an Device for detecting rotation speed having feedback circuitry an

1988-06-30

1990-01-02

Strecker, Gerard R.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

324 78R, 364565, G01P 3481, G01R 2302

Patent

active

048915882

ABSTRACT:
In an apparatus for detecting a rotating speed of a rotating object, in which a pulse train having a frequency proportional to the rotating speed is generated and the rotating speed is detected by detecting the period of the pulse train, the period detection results are over-sampled to form a recursive filter having a peak at the frequency where the frequency characteristic of the period detecting operation becomes zero. As a result, the frequency characteristic of the apparatus as a whole does not have a peak. The phase delay due to the period detecting operation is reduced.

REFERENCES:
patent: 4667297 (1987-05-01), Kawai
"A Microprocessor-Controlled Speed Regulator with Instantaneous Speed Estimation for Motor Drives", K. Saito, T. Ohmae, and T. Matsuda, IECON'85--pp. 755-760.

Affiliated with

Also associated with

Rating

Device for detecting rotation speed having feedback circuitry an does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for detecting rotation speed having feedback circuitry an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for detecting rotation speed having feedback circuitry an will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1385888