[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5494081A - Impedance bridge - Google Patents

Impedance bridge

Info

Publication number
JPS5494081A
JPS5494081A JP16078A JP16078A JPS5494081A JP S5494081 A JPS5494081 A JP S5494081A JP 16078 A JP16078 A JP 16078A JP 16078 A JP16078 A JP 16078A JP S5494081 A JPS5494081 A JP S5494081A
Authority
JP
Japan
Prior art keywords
amplifier
output
bridge
impedances
source
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
JP16078A
Other languages
Japanese (ja)
Inventor
Hideo Sato
Hiroji Kawakami
Motohisa Nishihara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16078A priority Critical patent/JPS5494081A/en
Priority to US05/971,358 priority patent/US4233848A/en
Priority to FR7900154A priority patent/FR2414193B1/en
Priority to DE2900382A priority patent/DE2900382C2/en
Priority to GB79438A priority patent/GB2012967B/en
Priority to IT19104/79A priority patent/IT1109944B/en
Publication of JPS5494081A publication Critical patent/JPS5494081A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

PURPOSE: To accurately subject the bridge output to level conversion by using one high gain voltage amplifier, i.e., an amplifier of low input impedance.
CONSTITUTION: The impedances of converting elements 2 to 5 are denoted at R2 to R5, respectively, and in case an exciting source 1 is a current source the voltage E0 between a common potential point e and the output terminal of an amplifier 10 is expressed by another Equation. Here, Is designates the current of the source 1. In this instance, the converting elements 2 and 5 have their impedances reduced for a physical quantity X, whereas the elements 3 and 4 have their impedances increased. Then, the output E0 becomes an output proportional to the physical quantity X. As a result, for the output of the impedance bridge, it is possible to effect the level conversion, by which the output on the basis of a potential point e can be obtained. Since, moreover, the middle point of the two sides of the bridge is used directly as the input of the amplifier 10, the amplifier may have a low input impedance when it is intended to obtain the same accuracy. And, the number of the amplifier may be only one.
COPYRIGHT: (C)1979,JPO&Japio
JP16078A 1978-01-06 1978-01-06 Impedance bridge Pending JPS5494081A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP16078A JPS5494081A (en) 1978-01-06 1978-01-06 Impedance bridge
US05/971,358 US4233848A (en) 1978-01-06 1978-12-20 Strain gauge pressure transducer apparatus having an improved impedance bridge
FR7900154A FR2414193B1 (en) 1978-01-06 1979-01-04 CONSTRAINED GAUGE TRANSDUCER HAVING IMPROVED IMPEDANCE BRIDGE
DE2900382A DE2900382C2 (en) 1978-01-06 1979-01-05 Voltmeter pressure transducer device
GB79438A GB2012967B (en) 1978-01-06 1979-01-05 Strain gauge pressure transducer apparatus
IT19104/79A IT1109944B (en) 1978-01-06 1979-01-05 EXTENSIMETRIC PRESSURE TRANSDUCTION EQUIPMENT WITH A PERFECTED IMPEDENCE BRIDGE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16078A JPS5494081A (en) 1978-01-06 1978-01-06 Impedance bridge

Publications (1)

Publication Number Publication Date
JPS5494081A true JPS5494081A (en) 1979-07-25

Family

ID=11466281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16078A Pending JPS5494081A (en) 1978-01-06 1978-01-06 Impedance bridge

Country Status (1)

Country Link
JP (1) JPS5494081A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009128334A (en) * 2007-11-28 2009-06-11 Mitsutoyo Corp Measuring device and detecting method of impedance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009128334A (en) * 2007-11-28 2009-06-11 Mitsutoyo Corp Measuring device and detecting method of impedance

Similar Documents

Publication Publication Date Title
JPS5494081A (en) Impedance bridge
JPS5422557A (en) Constant current circuit
JPS558656A (en) Sample hold circuit
JPS54134684A (en) Card circuit of electrostatic capacity measuring apparatus
JPS55149849A (en) Error compensating circuit for voltage-current conversion circuit
SU149128A1 (en) Operational amplifier
JPS55149028A (en) Load detector
JPS54130110A (en) Magnetic recording circuit
JPS55149854A (en) Current detecting circuit for parallel-operated transistor circuit
JPS5338380A (en) Peak detecting circuit
JPS55143451A (en) Signal level measuring instrument
JPS558160A (en) Oscillation circuit
SU721834A1 (en) Diode function generator
JPS5495150A (en) Multiplier using hall element
JPS55150618A (en) Reference step voltage generating circuit for a/d d/a converter
JPS548861A (en) Constant voltage circuit
JPS52131475A (en) Measurement equipment for semiconductor
JPS5657961A (en) Period-voltage converting circuit
JPS57201310A (en) Method for detecting and measuring abnormal oscillation of amplifier
JPS5753114A (en) Differential amplifier
JPS5422553A (en) Constant voltage circuit
JPS5379229A (en) Voltage transformer
JPS5558467A (en) Inductive load measuring method
JPS5549977A (en) Rectifying circuit
JPS5671338A (en) Conversion circuit of two/four wires