JPS55110914A - Rotation discriminating device for rotary dial - Google Patents

Rotation discriminating device for rotary dial

Info

Publication number
JPS55110914A
JPS55110914A JP1888879A JP1888879A JPS55110914A JP S55110914 A JPS55110914 A JP S55110914A JP 1888879 A JP1888879 A JP 1888879A JP 1888879 A JP1888879 A JP 1888879A JP S55110914 A JPS55110914 A JP S55110914A
Authority
JP
Japan
Prior art keywords
output power
processing unit
data processing
phototransister
ptrp
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.)
Granted
Application number
JP1888879A
Other languages
Japanese (ja)
Other versions
JPS6019458B2 (en
Inventor
Kazuaki Sakurai
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP1888879A priority Critical patent/JPS6019458B2/en
Publication of JPS55110914A publication Critical patent/JPS55110914A/en
Publication of JPS6019458B2 publication Critical patent/JPS6019458B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE: To lessen the load on data processing unit even in high speed rotation and to avoid erroneous movement even for complicated movements of dial, by monitoring one piece of phototransister on its condition, other than output power of two pieces of D-type FF.
CONSTITUTION: On rotating shaft 1, gear 2 is fixed and with circumference of the gear, spring 3 is contacted and at every 30° of rotation of shaft 1, click stop is actuated. At each rotating angle 15° of disc 4, the light from luminous diode D1 to phototransister (Ptr)P1 and/or beam from diode D2 to PtrP2 are interrupted intermittently. Output power of exclusive OR circuit is, as count pulse CP, and output power P1 of PtrP1, output power Q1, Q2 of D-type FFF1, F2 are respectively as direction signal pulses, given to data processing unit. Count pulse CP will be converted into simple short pulse, direction signals Q1, Q2 are into simple H, L or L, H, enabling operation even up to considerable high speed without influencing any heavy burden on data processing unit.
COPYRIGHT: (C)1980,JPO&Japio
JP1888879A 1979-02-20 1979-02-20 Rotary dial rotation identification device Expired JPS6019458B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1888879A JPS6019458B2 (en) 1979-02-20 1979-02-20 Rotary dial rotation identification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1888879A JPS6019458B2 (en) 1979-02-20 1979-02-20 Rotary dial rotation identification device

Publications (2)

Publication Number Publication Date
JPS55110914A true JPS55110914A (en) 1980-08-27
JPS6019458B2 JPS6019458B2 (en) 1985-05-16

Family

ID=11984098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1888879A Expired JPS6019458B2 (en) 1979-02-20 1979-02-20 Rotary dial rotation identification device

Country Status (1)

Country Link
JP (1) JPS6019458B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923257A (en) * 1982-07-28 1984-02-06 Hokuyo Automatic Co Optical fiber type sensor
CN108693373A (en) * 2018-05-22 2018-10-23 西京学院 A kind of PWM code-discs speed probe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923257A (en) * 1982-07-28 1984-02-06 Hokuyo Automatic Co Optical fiber type sensor
CN108693373A (en) * 2018-05-22 2018-10-23 西京学院 A kind of PWM code-discs speed probe

Also Published As

Publication number Publication date
JPS6019458B2 (en) 1985-05-16

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