JPH0239163U

JPH0239163U -

Info

Publication number: JPH0239163U
Application number: JP11878188U
Authority: JP
Priority date: 1988-09-09
Filing date: 1988-09-09
Publication date: 1990-03-15

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すブロツク図、
第２図は第１図の実施例の動作波形図、第３図は
比較説明のための波形図である。１……回転体、２……パルスピツクアツプ、３
……逓倍回路、４……逓倍回路、５……切換回路
、６……演算処理部。 FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is an operational waveform diagram of the embodiment shown in FIG. 1, and FIG. 3 is a waveform diagram for comparative explanation. 1...Rotating body, 2...Pulse pickup, 3
... Multiplier circuit, 4 ... Multiplier circuit, 5 ... Switching circuit, 6 ... Arithmetic processing section.

Claims

[Scope of utility model registration request]

A rotation detecting section that detects the rotation of the rotating body and generates a rotation detection signal, a multiplier circuit that multiplies the rotation detection signal of the rotation detecting section into a predetermined frequency signal, and a multiplier circuit that multiplies the signal multiplied by the multiplier circuit into a predetermined frequency signal. The output signal from the frequency converter, the output signal from the frequency converter, and the output signal from the frequency converter are supplied. A switching circuit that selects and outputs the switching, a signal output from this switching circuit and a signal output from the multiplication circuit are supplied, and the signal from the multiplication circuit is used as a rotation speed measurement trigger signal to generate a signal selected by the switching circuit. What is claimed is: 1. A speed detection device for a rotating body, comprising: an arithmetic processing section that calculates a rotational speed by using a calculation processing section.