JPS56125630A - Thin type electronic balance - Google Patents
Thin type electronic balanceInfo
- 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
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.
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)
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 |
-
1980
- 1980-03-07 JP JP2961880A patent/JPS56125630A/en active Pending
Cited By (11)
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 |