JPH0522163B2 - - Google Patents
Info
- Publication number
- JPH0522163B2 JPH0522163B2 JP56118412A JP11841281A JPH0522163B2 JP H0522163 B2 JPH0522163 B2 JP H0522163B2 JP 56118412 A JP56118412 A JP 56118412A JP 11841281 A JP11841281 A JP 11841281A JP H0522163 B2 JPH0522163 B2 JP H0522163B2
- Authority
- JP
- Japan
- Prior art keywords
- capacitance
- capacitor
- counter
- measuring
- circuit
- 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.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims description 54
- 238000006073 displacement reaction Methods 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 101001125858 Homo sapiens Peptidase inhibitor 15 Proteins 0.000 description 1
- 102100029323 Peptidase inhibitor 15 Human genes 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/248—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains by varying pulse repetition frequency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/252—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with conversion of voltage or current into frequency and measuring of this frequency
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56118412A JPS5821104A (ja) | 1981-07-30 | 1981-07-30 | 変位測定装置 |
US06/402,377 US4531193A (en) | 1981-07-30 | 1982-07-27 | Measurement apparatus |
AU86518/82A AU549860B2 (en) | 1981-07-30 | 1982-07-28 | Measurement apparatus |
CA000408285A CA1220835A (en) | 1981-07-30 | 1982-07-28 | Measurement apparatus |
BR8204472A BR8204472A (pt) | 1981-07-30 | 1982-07-29 | Aparelho para medir uma quantidade fisica e fornecer dados de medicao correspondentes |
DE8484114777T DE3279510D1 (en) | 1981-07-30 | 1982-07-30 | Measurement apparatus |
DE19823229010 DE3229010A1 (de) | 1981-07-30 | 1982-07-30 | Digitale messeinrichtung fuer eine physikalische groesse |
EP84114777A EP0159401B1 (en) | 1981-07-30 | 1982-07-30 | Measurement apparatus |
DE8282106917T DE3274495D1 (en) | 1981-07-30 | 1982-07-30 | Measurement apparatus |
EP82106917A EP0071912B1 (en) | 1981-07-30 | 1982-07-30 | Measurement apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56118412A JPS5821104A (ja) | 1981-07-30 | 1981-07-30 | 変位測定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5821104A JPS5821104A (ja) | 1983-02-07 |
JPH0522163B2 true JPH0522163B2 (sv) | 1993-03-26 |
Family
ID=14736000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56118412A Granted JPS5821104A (ja) | 1981-07-30 | 1981-07-30 | 変位測定装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5821104A (sv) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3671782D1 (de) * | 1985-09-09 | 1990-07-12 | Nippon Denso Co | Schaltervorrichtung fuer anlasser eines verbrennungsmotors. |
JP2004264273A (ja) * | 2003-02-28 | 2004-09-24 | Oht Inc | 導体位置検査装置及び導体位置検査方法 |
JP2004264272A (ja) | 2003-02-28 | 2004-09-24 | Oht Inc | 導電体検査装置及び導電体検査方法 |
JP5086113B2 (ja) * | 2008-01-24 | 2012-11-28 | 株式会社フジクラ | 静電容量型センサ |
GB2479156B (en) * | 2010-03-30 | 2012-11-21 | Univ Newcastle | Apparatus and method for voltage sensing |
WO2016009783A1 (ja) * | 2014-07-16 | 2016-01-21 | 日立アロカメディカル株式会社 | 超音波探触子、その性能評価方法及び超音波診断装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4843951A (sv) * | 1971-09-30 | 1973-06-25 | ||
JPS5161864A (en) * | 1974-11-25 | 1976-05-28 | Shimadzu Corp | Seidenyoryo chokuryudenatsuhenkansochi |
-
1981
- 1981-07-30 JP JP56118412A patent/JPS5821104A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4843951A (sv) * | 1971-09-30 | 1973-06-25 | ||
JPS5161864A (en) * | 1974-11-25 | 1976-05-28 | Shimadzu Corp | Seidenyoryo chokuryudenatsuhenkansochi |
Also Published As
Publication number | Publication date |
---|---|
JPS5821104A (ja) | 1983-02-07 |
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