JPS56125630A - Thin type electronic balance - Google Patents

Thin type electronic balance

Info

Publication number
JPS56125630A
JPS56125630A JP2961880A JP2961880A JPS56125630A JP S56125630 A JPS56125630 A JP S56125630A JP 2961880 A JP2961880 A JP 2961880A JP 2961880 A JP2961880 A JP 2961880A JP S56125630 A JPS56125630 A JP S56125630A
Authority
JP
Japan
Prior art keywords
load
sensors
diaphragm
electrostatic capacity
points
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
JP2961880A
Other languages
Japanese (ja)
Inventor
Toru Ishida
Katsuhide Tsukamoto
Hiromichi Mitsuda
Toshiharu Sasaki
Hideyuki Okinaka
Yasuhiro Okada
Yoshio Abe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2961880A priority Critical patent/JPS56125630A/en
Publication of JPS56125630A publication Critical patent/JPS56125630A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/06—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electrostatic action

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

PURPOSE:To reduce thickness by supporting load at three points by means of three sensors of electrostatic capacity detecting type or resistance detection type using a diaphragm, connecting the sensors in series and determining the load from the change in their impedances. CONSTITUTION:One electrode 2 is formed on the main plane of an alumina-made base table 1, and an alumina-made diaphragm 4 is disposed via a spacer 2. The diaphragm 4 is made deformable with load, and is formed with an electrode at its center. If load W is applied to the sensor of such construction from the diaphragm 4 side, the electrostatic capacity C between the electrodes 2 and 5 changes, and is expressed by W=K-(L/C) (K, L: constants). If the load is supported at three points and the sensors are disposed at the respective points, the load W of the entire part is expressed by W=3K-[L/(C1+C2+C3)]; therefore, if the three sensors are connected in series, the load W is determined from their composite electrostatic capacity.
JP2961880A 1980-03-07 1980-03-07 Thin type electronic balance Pending JPS56125630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2961880A JPS56125630A (en) 1980-03-07 1980-03-07 Thin type electronic balance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2961880A JPS56125630A (en) 1980-03-07 1980-03-07 Thin type electronic balance

Publications (1)

Publication Number Publication Date
JPS56125630A true JPS56125630A (en) 1981-10-02

Family

ID=12281063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2961880A Pending JPS56125630A (en) 1980-03-07 1980-03-07 Thin type electronic balance

Country Status (1)

Country Link
JP (1) JPS56125630A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61207929A (en) * 1985-03-11 1986-09-16 Sharp Corp Folding electrostatic scale
JPS62124421A (en) * 1985-11-25 1987-06-05 Matsushita Electric Ind Co Ltd Weight detector
JPS62124423A (en) * 1985-11-25 1987-06-05 Matsushita Electric Ind Co Ltd Weight detecting device
JPS62147321A (en) * 1985-12-20 1987-07-01 Matsushita Electric Ind Co Ltd Electrostatic capacity type weight detector
JPS62179614A (en) * 1986-02-03 1987-08-06 Matsushita Electric Ind Co Ltd Weight detector
JPS62179613A (en) * 1986-02-03 1987-08-06 Matsushita Electric Ind Co Ltd Weight detector
EP0259494A1 (en) * 1986-02-03 1988-03-16 Matsushita Electric Industrial Co., Ltd. Weight-detecting device
JPH0613071A (en) * 1992-06-29 1994-01-21 Matsushita Electric Ind Co Ltd Manufacture of negative electrode for button type alkaline battery
JP2011002252A (en) * 2009-06-16 2011-01-06 Oita Univ Force plate
JP2011220722A (en) * 2010-04-05 2011-11-04 Seiko Epson Corp Pressure sensor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61207929A (en) * 1985-03-11 1986-09-16 Sharp Corp Folding electrostatic scale
JPS62124421A (en) * 1985-11-25 1987-06-05 Matsushita Electric Ind Co Ltd Weight detector
JPS62124423A (en) * 1985-11-25 1987-06-05 Matsushita Electric Ind Co Ltd Weight detecting device
JPS62147321A (en) * 1985-12-20 1987-07-01 Matsushita Electric Ind Co Ltd Electrostatic capacity type weight detector
JPS62179614A (en) * 1986-02-03 1987-08-06 Matsushita Electric Ind Co Ltd Weight detector
JPS62179613A (en) * 1986-02-03 1987-08-06 Matsushita Electric Ind Co Ltd Weight detector
EP0259494A1 (en) * 1986-02-03 1988-03-16 Matsushita Electric Industrial Co., Ltd. Weight-detecting device
EP0259494A4 (en) * 1986-02-03 1989-12-19 Matsushita Electric Ind Co Ltd Weight-detecting device.
JPH0613071A (en) * 1992-06-29 1994-01-21 Matsushita Electric Ind Co Ltd Manufacture of negative electrode for button type alkaline battery
JP2011002252A (en) * 2009-06-16 2011-01-06 Oita Univ Force plate
JP2011220722A (en) * 2010-04-05 2011-11-04 Seiko Epson Corp Pressure sensor

Similar Documents

Publication Publication Date Title
EP0079711A3 (en) Touch sensitive switches
JPS6444823A (en) Pressure detecting device of electrostatic capacity system
US5600066A (en) Capacitive accelerometer with a circuit for correcting stray capacitance perturbations
JPS56125630A (en) Thin type electronic balance
EP0291507A1 (en) Electronic inclinometer.
KR900010373A (en) Differential Capacitive Detector with Overpressure Protection
JPS5780503A (en) Electrostatic capacity type distance measuring apparatus
US4966039A (en) Electrical force and/or deformation sensor, particularly for use as a pressure sensor
JPS57144402A (en) Sensor for detecting abrasion loss of brake lining
CA2109619A1 (en) A gas sensor
EP0131551A3 (en) Differential pressure transmitter for fluids with compensation of static pressure change effects
JPS56164949A (en) Multifunction detector
JPS6416943A (en) Electrostatic capacity type pressure sensor
JPS57139633A (en) Capacitive pressure-difference converter
KR950029914A (en) Pointing Device Transducers Using Thick Film Resistor Strain Sensors
EP0168149A3 (en) Strain gauge bridge assembly
JPS56162026A (en) Pressure detector
JPS6488255A (en) Detecting device of acceleration
JPS5796248A (en) Detecting method for gas using superparticulate gas sensor
JPS55122161A (en) Device for measuring velocity of wind
JPS57106804A (en) Measuring device for thickness of film
JPS646831A (en) Sensor
JPS5670245A (en) Double feed detection system
JPS57175250A (en) Sensitive element for gas and humidity
JPS5246875A (en) Pressure measuring device