JPS52128183A - Low speed rotary speed detector - Google Patents

Low speed rotary speed detector

Info

Publication number
JPS52128183A
JPS52128183A JP4445576A JP4445576A JPS52128183A JP S52128183 A JPS52128183 A JP S52128183A JP 4445576 A JP4445576 A JP 4445576A JP 4445576 A JP4445576 A JP 4445576A JP S52128183 A JPS52128183 A JP S52128183A
Authority
JP
Japan
Prior art keywords
detector
speed
low speed
low
slit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4445576A
Other languages
Japanese (ja)
Inventor
Masakatsu Fujie
Hiroshi Yamamoto
Toshio Akatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4445576A priority Critical patent/JPS52128183A/en
Publication of JPS52128183A publication Critical patent/JPS52128183A/en
Pending legal-status Critical Current

Links

Landscapes

  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE: To detect the numbers of rotations, by means of installing a slit on a ring shape section of a disk thereby placing a light receiving and emitting element with a specified relationship for the slit and making either one of light receiving and emitting element or disk rotate.
COPYRIGHT: (C)1977,JPO&Japio
JP4445576A 1976-04-21 1976-04-21 Low speed rotary speed detector Pending JPS52128183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4445576A JPS52128183A (en) 1976-04-21 1976-04-21 Low speed rotary speed detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4445576A JPS52128183A (en) 1976-04-21 1976-04-21 Low speed rotary speed detector

Publications (1)

Publication Number Publication Date
JPS52128183A true JPS52128183A (en) 1977-10-27

Family

ID=12691952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4445576A Pending JPS52128183A (en) 1976-04-21 1976-04-21 Low speed rotary speed detector

Country Status (1)

Country Link
JP (1) JPS52128183A (en)

Similar Documents

Publication Publication Date Title
JPS53110877A (en) Revolving direction detector
JPS5399970A (en) Rotating angle detector
JPS539104A (en) Cassette tape running speed detector
JPS52128183A (en) Low speed rotary speed detector
JPS5380247A (en) Position detector
JPS539491A (en) Photo semiconductor device
JPS529267A (en) Slip detector
JPS52153483A (en) Temperature detector
JPS53137353A (en) Center of axis positioning and its device
JPS5437790A (en) Speed detector
JPS5237017A (en) Tape position detecting device
JPS52101355A (en) Fastening device of rotary shaft and ring
JPS52105801A (en) Centering device for disc
JPS51134653A (en) Pulley revolution detector
JPS5351801A (en) Free wheel hub device
JPS52106762A (en) Clock case
JPS51145352A (en) Tilt detector
JPS5381113A (en) Radiation sensitive material
JPS5327465A (en) Detector for rotational speed
JPS52108582A (en) Turntable driving device
JPS5334453A (en) Phase detector
JPS52129544A (en) Detection and control device for rotational position
JPS5240177A (en) Revolving direction detecting device
JPS5289972A (en) Tachometer
JPS5427283A (en) Method of stamping on lighting fixture