JPS5589726A - Temperature measuring unit - Google Patents

Temperature measuring unit

Info

Publication number
JPS5589726A
JPS5589726A JP274780A JP274780A JPS5589726A JP S5589726 A JPS5589726 A JP S5589726A JP 274780 A JP274780 A JP 274780A JP 274780 A JP274780 A JP 274780A JP S5589726 A JPS5589726 A JP S5589726A
Authority
JP
Japan
Prior art keywords
pulse width
pulse
resistance value
temperature
inputted
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
JP274780A
Other languages
Japanese (ja)
Other versions
JPS5821214B2 (en
Inventor
Sumio Kobane
Kosaku Yamaguchi
Koji Taguchi
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.)
Meisei Electric Co Ltd
Original Assignee
Meisei Electric Co 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 Meisei Electric Co Ltd filed Critical Meisei Electric Co Ltd
Priority to JP55002747A priority Critical patent/JPS5821214B2/en
Publication of JPS5589726A publication Critical patent/JPS5589726A/en
Publication of JPS5821214B2 publication Critical patent/JPS5821214B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To enable to perform accurate temperature measurement, by avoiding the pulse width from being affected from external conditions, in the temperature measurement using the circuit in which the resistance value of element converting the temperature into resistance value is converted into pulse width. CONSTITUTION:When the balance of the bridge circuit is unbalanced and the voltage Vi is outputted, it is DC-amplified 2 and inputted to the pulse width modulator 3 to change the pulse width ts of pulse train from the pulse generator 4. The pulse train receiving the pulse width modulation is inputted to the transistor 5 to control ON.OFF operation of the transistor 5 and the effective resistance value Rt between a-b. When the input voltage of the modulator 3 is decreased (increased), the pulse width ts increases (decreases), and the effective resistance value Rt is decreased (increased). Thus, the bridge circuit keeps balancing and variable output is obtained so that the pulse width ts can be determined with the value of the temperature conversion resistance R1. By counting the pulse output through the gate control with the pulse of pulse width ts, the temperature sensed with the conversion resistor can be grasped.
JP55002747A 1980-01-14 1980-01-14 temperature measuring device Expired JPS5821214B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55002747A JPS5821214B2 (en) 1980-01-14 1980-01-14 temperature measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55002747A JPS5821214B2 (en) 1980-01-14 1980-01-14 temperature measuring device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP3371375A Division JPS51108875A (en) 1975-03-20 1975-03-20 ONDOSOKUTEIKI

Publications (2)

Publication Number Publication Date
JPS5589726A true JPS5589726A (en) 1980-07-07
JPS5821214B2 JPS5821214B2 (en) 1983-04-27

Family

ID=11537938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55002747A Expired JPS5821214B2 (en) 1980-01-14 1980-01-14 temperature measuring device

Country Status (1)

Country Link
JP (1) JPS5821214B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07137989A (en) * 1993-11-17 1995-05-30 Jgc Corp Material hoisting device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH052987Y2 (en) * 1987-12-24 1993-01-25

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51108875A (en) * 1975-03-20 1976-09-27 Meisei Electric Co Ltd ONDOSOKUTEIKI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51108875A (en) * 1975-03-20 1976-09-27 Meisei Electric Co Ltd ONDOSOKUTEIKI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07137989A (en) * 1993-11-17 1995-05-30 Jgc Corp Material hoisting device

Also Published As

Publication number Publication date
JPS5821214B2 (en) 1983-04-27

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