JPS6074012U

JPS6074012U - Rotation speed measuring device

Info

Publication number: JPS6074012U
Application number: JP16777683U
Authority: JP
Inventors: 藤原　範幸
Original assignee: 三菱電機株式会社
Priority date: 1983-10-27
Filing date: 1983-10-27
Publication date: 1985-05-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の回転数計測装置を示す概略構成図、第２
図は、第１図の回転数計測装置における回転子軸の端面
図、第３図はこの考案の一実施例である回転数計測装置
を示す概略構成図、第４図は、第３図の回転数計測装置
における回転子軸の端面図、第５図は、第３図の回転数
計測装置のシステム構成を示すブロック図、第６図ａな
いしＣは、第５図の回転数計測装置の動作態様を説明す
るための各部の信号波形のタイミング図である。図において、１・・・回転子軸、２・・・磁極中心線、
３・・・回転子コイル、４・・・軸マーク、５・・・歯
車、６・・・回転マーク、７・・・センサ、８，１２・
・・波形整形器、９・・・演算器、１０・・・回転数表
示器、１１・・・ターニング速度信号器、１３・・・停
止位置検出器、１４・・・停止位置表示器、１５．１６
・・・回転数計測器である。なお、各図中、同一符号は
同一、又は相当部分を示す。Figure 1 is a schematic configuration diagram showing a conventional rotation speed measuring device, Figure 2
The figure is an end view of the rotor shaft in the rotation speed measuring device shown in FIG. 1, FIG. FIG. 5 is a block diagram showing the system configuration of the rotation speed measurement device in FIG. 3, and FIGS. FIG. 4 is a timing chart of signal waveforms of each part for explaining an operation mode. In the figure, 1... rotor axis, 2... magnetic pole center line,
3... Rotor coil, 4... Axis mark, 5... Gear, 6... Rotation mark, 7... Sensor, 8, 12...
... Waveform shaper, 9... Arithmetic unit, 10... Rotation speed indicator, 11... Turning speed signal device, 13... Stop position detector, 14... Stop position indicator, 15 .16
...It is a rotation speed measuring device. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

(1) Rotation marks of different sizes are attached to a gear fixed to the rotor shaft of a rotating electrical machine in alignment with the magnetic pole center line of the rotor shaft, and a sensor for detecting the displacement of each rotation mark is attached to the gear. A rotational speed measuring device arranged opposite to a gear and configured to obtain two types of pulse signals by changing the signal level detected from the sensor.

(2) The rotation speed according to claim 1 of the utility model registration claim, characterized in that the rotor shaft is provided with a stop position indicator that operates so that the magnetic pole center line of the rotor shaft is in the vertical direction and the rotor can be stopped. Measuring device.