JPS54137379A - Converter - Google Patents

Converter

Info

Publication number
JPS54137379A
JPS54137379A JP4614378A JP4614378A JPS54137379A JP S54137379 A JPS54137379 A JP S54137379A JP 4614378 A JP4614378 A JP 4614378A JP 4614378 A JP4614378 A JP 4614378A JP S54137379 A JPS54137379 A JP S54137379A
Authority
JP
Japan
Prior art keywords
capacity
igfetq
charge
capacity element
preset
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
JP4614378A
Other languages
Japanese (ja)
Other versions
JPS6341025B2 (en
Inventor
Tojiro Takegawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4614378A priority Critical patent/JPS54137379A/en
Publication of JPS54137379A publication Critical patent/JPS54137379A/en
Publication of JPS6341025B2 publication Critical patent/JPS6341025B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE: To make it possible to process the varying information at a high speed and in high accuracy by converting the capacity difference between a varying capacity element and a preset capacity of a pressure sensor into a pulse number.
CONSTITUTION: There are arranged an IGFEDTQ1 for charging an unknown varying capacity element Cx and a known capacity element Cs, an IGFETQ2 for detecting a level, an IGFETQ3 for charging a capacity element CB for detecting the output level, an IGFETQ4 for transferring a preset charge from the capacitors Cx and Cs to a counting capacity element CM having a smaller capacity than Cx for charging a preset quantity of charge from the capacitors Cx and Cs, and an IGFETQ5 for discharging a preset quantity of charge from the capacitor CM. And, the quantity of charge stored in the Cx and Cs is trasferred and discharged to the CM so that the number of pulses proportional thereto can be generated.
COPYRIGHT: (C)1979,JPO&Japio
JP4614378A 1978-04-18 1978-04-18 Converter Granted JPS54137379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4614378A JPS54137379A (en) 1978-04-18 1978-04-18 Converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4614378A JPS54137379A (en) 1978-04-18 1978-04-18 Converter

Publications (2)

Publication Number Publication Date
JPS54137379A true JPS54137379A (en) 1979-10-25
JPS6341025B2 JPS6341025B2 (en) 1988-08-15

Family

ID=12738740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4614378A Granted JPS54137379A (en) 1978-04-18 1978-04-18 Converter

Country Status (1)

Country Link
JP (1) JPS54137379A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015516079A (en) * 2012-05-30 2015-06-04 株式会社村田製作所 Module and capacity detection method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039940A (en) * 1976-07-30 1977-08-02 General Electric Company Capacitance sensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039940A (en) * 1976-07-30 1977-08-02 General Electric Company Capacitance sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015516079A (en) * 2012-05-30 2015-06-04 株式会社村田製作所 Module and capacity detection method

Also Published As

Publication number Publication date
JPS6341025B2 (en) 1988-08-15

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