GR 1657 RLC Digibridge


© Brooke Clarke 2019

GR 1657 RLC
                  Digibridge
GR 1657 RLC
                  Digibridge

Background
Description
Photos
Patents
Related
References
Links

Background

I'm been courious about these for some time, but prior to now they were too pricey.  This is related to my interest in impedance, RLC Bridges and LCR meters.

Description



Photos

Fig 1
GR 1657 RLC
                      Digibridge

Fig 2
GR 1657 RLC
                      Digibridge






Patents

3562641 Impedance-measuring transformer bridge with automatic digital balancing circuit, Robert G FulksGeneral Radio Co, 1971-02-09,

Citations:
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US2440200A *1944-04-06  1948-04-20Cossor Ltd A C Rectifying network for measuring alternating currents
FR1165701A *1957-01-28  1958-10-28  Cfcmug  Device level indicator
US2968180A *1956-05-04  1961-01-17  Curtiss R Schafer  Alternating current bridges
US2972106A *1958-04-09  1961-02-14  Western Electric Co  Automatic alternating current bridge
US3082373A *1959-01-29  1963-03-19  Westinghouse Electric Corp  Optimizing method and apparatus
US3218863A *1962-05-07  1965-11-23  Wayne Kerr Lab Ltd  Pressure responsive apparatus
US3301056A *1963-06-14  1967-01-31  Trans Sonics Inc  Liquid measuring system

Cited by:
Publication number  Priority date  Publication date  Assignee  Title
US3718856A *1970-12-02  1973-02-27  Teradyne Inc  Inductance and capacitance reactance measuring instrument having minimal inclusion of stray reactances
FR2184442A1 *1972-05-17  1973-12-28  Snecma
US4001813A *1975-07-02  1977-01-04  The Bendix Corporation  Precision capacitance to digital conversion system
DE2715842A1 *1976-09-02  1978-03-09  Genrad Inc  A method for automatic impedance measurement
US4342089A *1976-09-02  1982-07-27  Genrad, Inc.  Method of and apparatus for automatic measurement of circuit parameters with microprocessor calculation techniques
WO1987002142A1 *1985-10-01  1987-04-09  Andeen-Hagerling, Inc.  High precision capacitance bridge
US4841228A *1986-07-11  1989-06-20  Hewlett-Packard Company  Apparatus for indicating the resistive characteristic of a capacitor
US4982351A *1986-05-05  1991-01-01  Texas Instruments Incorporated  Low cost high precision sensor
US5051937A *1986-05-05  1991-09-24  Texas Instruments Incorporated  Low cost high precision sensor
US5287065A *1991-10-04  1994-02-15  Doble Engineering Company  Automatic bridge balancing using controllable impedance in characterizing unknown impedance
US6204673B11998-12-01  2001-03-20  Andeen-Hagerling, Inc.  Method and apparatus using feedback to correct the production of magnitude and phase relationships between two sinusoidal signals for use in a ratio-transformer capacitance bridge
US20140375374A1 *2013-06-24  2014-12-25  Silicon Laboratories Inc.  Capacitance to Digital Converter and Method

4181949 Method of and apparatus for phase-sensitive detection, Henry P. Hall, GenRad Inc, 1980-01-01 - half wave long samples at 0, 405 and 810 degrees.

4196475 Method of and apparatus for automatic measurement of impedance or other parameters with microprocessor calculation techniques, Henry P. Hall, GenRad Inc, 1980-04-01 - GR 1657

Citations:
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US3142820A *1960-01-20  1964-07-28  Scam Instr Corp  Variable monitoring and recording system
US3445763A *1965-10-06  1969-05-20  Gen Electric  Digital reading impedance measuring arrangement
US3562641A *1968-11-25  1971-02-09  Gen Radio Co  Impedance-measuring transformer bridge with automatic digital balancing circuit
US3593126A *1969-05-16  1971-07-13  Western Electric Co  Automatic self-balancing operational amplifier impedance bridge
US3652930A *1969-03-06  1972-03-28  Yokogawa Electric Works Ltd  Ratio measuring apparatus
US3859594A *1967-08-21  1975-01-07  Rosemount Inc  Two wire current transmitter responsive to a resistance sensor input signal
US3984768A *1975-06-11  1976-10-05  Champion Spark Plug Company  Apparatus for high voltage resistance measurement
US3992665A *1973-09-10  1976-11-16  Preikschat F K  Electrical impedance measuring apparatus
US4034190A *1974-03-15  1977-07-05  Trw Inc.  Method and apparatus for remote salinity sensing
Family To Family Citations
US2872639A *1956-10-19  1959-02-03  Gen Radio Co  Electrical bridge and method
JPS5317302B2 *1972-12-28  1978-06-07
DE2305829A1 *1973-02-07  1974-08-08  Kleinwaechter Hans  Measuring method and device for measuring and separate registration of the reactance and resistance of the ohmic more passive two pole
JPS5027741A *1973-07-13  1975-03-22

Cited by:
Publication number  Priority date  Publication date  Assignee  Title
US4323972A *1980-03-10  1982-04-06  Sencore, Inc.  Ohm meter with automatic lead resistance compensation
US4404636A *1981-04-08  1983-09-13  Wilcom Products, Inc.  Phasor impedance measuring test set
US4408282A *1981-04-22  1983-10-04  Hof Peter JAC   Resistance measuring instrument
US4495558A *1982-06-25  1985-01-22  General Electric Company  Method and apparatus for determining oxide film thickness
US4546441A *1982-07-22  1985-10-08  John Burch  Method and apparatus for time based measurement of impedance
US4577318A *1983-11-14  1986-03-18  Burroughs Corporation  Self testing detection system for comparing digital signal transition times
WO1986001905A1 *1984-09-12  1986-03-27  Varian Associates, Inc.  Nmr tuning procedure
US4589073A *1982-05-05  1986-05-13  Dorman Smith Switchgear Limited  Apparatus for determining prospective short circuit current
US4590581A *1983-05-09  1986-05-20  Valid Logic Systems, Inc.  Method and apparatus for modeling systems of complex circuits
US4654585A *1983-07-27  1987-03-31  Hewlett-Packard Company  Phase detection method
US4670698A *1983-12-02  1987-06-02  Imec Corporation  Adaptive induction motor controller
US4686627A *1984-12-24  1987-08-11  Honeywell Inc.  Electrical test apparatus
US4694372A *1981-11-25  1987-09-15  Sibeud Jean Paul  Circuit diagnosis and control device
US4727320A *1986-11-24  1988-02-23  General Electric Company  Method and apparatus for motor size determination
US4744084A *1986-02-27  1988-05-10  Mentor Graphics Corporation  Hardware modeling system and method for simulating portions of electrical circuits
US4808932A *1987-05-15  1989-02-28  Electric Power Research Institute, Inc.  Rotor fault and location detector for induction motors
US4888701A *1986-03-04  1989-12-19  Hewlett Packard Company  Apparatus for measuring vector voltage ratio
US5182717A *1989-07-13  1993-01-26  Dassault Electronique  Device for testing a network of components, in particular an electronic circuit
US5515291A *1991-08-23  1996-05-07  Mitsubishi Denki Kabushiki Kaisha  Apparatus for calculating delay time in logic functional blocks
US5844412A *1996-12-19  1998-12-01  Teradyne, Inc.  Board test apparatus and method for fast capacitance measurement
US6502046B1 *1999-03-13  2002-12-31  Korea Kumbo Petrochemical Co. Ltd  Laplace transform impedance spectrometer and its measurement method
US20040078156A1 *2002-10-21  2004-04-22  Isaac Kantorovich  System and method of measuring low impedances
US20050021254A1 *2003-07-25  2005-01-27  James G. Biddle Co.  Method and apparatus for determining the complex impedance of an electrical component
US20080030386A1 *2006-08-03  2008-02-07  Kabushiki Kaisha Toshiba  Integrated circuit, self-test method for the integrated circuit, and optical disc apparatus including the integrated circuit
US20100148795A1 *2008-12-16  2010-06-17  Primarion Inc.  Methods and apparatus for selecting settings for circuits
US20120109558A1 *2009-06-25  2012-05-03  Zte Corporation  Method for Implementing Electromagnetic Anti-Interference Filter Impedance Match and Measuring System Thereof
CN102608425A *2012-03-26  2012-07-25  中国科学院物理研究所  Broadband impedance measuring system and broadband impedance measuring method
CN103792430A *2012-10-26  2014-05-14  无锡华润上华科技有限公司  Self-adaptive range resistance test method
KR101491102B1 *2012-12-20  2015-02-06  포스코에너지 주식회사  Characteristic measurement apparatus for secondary battery and method thereof
WO2018127793A1 *2017-01-09  2018-07-12  Analog Devices Global Unlimited Company  Devices and methods for smart sensor application
Family To Family Citations
US4276619A *1979-03-07  1981-06-30  Exxon Production Research Company  Impedance and common mode rejection testing of a multi-channel seismic data gathering apparatus
DE3032948C2 *1980-09-02  1991-04-04  Dr. Thiedig + Co, 1000 Berlin, De
JPH0235949B2 *1980-12-23  1990-08-14  Yokogawa Hyuuretsuto Patsukaado Kk
FR2510799B1 *1981-07-30  1986-07-18  Commissariat Energie Atomique  composite heat shield and method of manufacture
JPS61594U *1984-06-07  1986-01-06
US5073757A *1988-09-23  1991-12-17  John Fluke Mfg. Co., Inc.  Apparatus for and method of measuring capacitance of a capacitive element
FR2637985B1 *1988-10-14  1991-04-26  Collet Gerard  Method and apparatus for measuring resistive impedances, particularly for measuring temperature
JPH02110797U *1989-02-22  1990-09-05
CN103837727B *2012-11-27  2016-05-25承永资讯科技股份有限公司  Automatic balancing bridge gear selection method and apparatus

4242631 Front-end circuit apparatus for impedance measurements and the like,  Henry P. Hall, GenRad Inc, 1980-12-30 - GR1657-RLC "Digibridge"
Citations:
Publication number  Priority date  Publication date  Assignee  Title
US2479051A *1945-04-12  1949-08-16  Philco Corp  Alternating current type limit bridge
US2589758A *1948-07-22  1952-03-18  Western Electric Co  Method and apparatus for making electrical measurements
US2593175A *1947-07-08  1952-04-15  Technology Instr Corp  Electric method and system for measuring impedance magnitude and phase angle
US3027511A *1958-10-10  1962-03-27  Harris Transducer Corp  Vector bridge
US3031614A *1958-01-10  1962-04-24  Wayne Kerr Lab Ltd  Electrical measuring bridges
US3422347A *1964-10-06  1969-01-14  Canadian Patents Dev  Comparator circuit having a hall generator for measurement of d.c. magnetic fields
US3585496A *1968-01-05  1971-06-15  Tsugami Mfg Co Ltd  Dielectric loss measuring apparatus employing plural tuned circuits
US3718856A *1970-12-02  1973-02-27  Teradyne Inc  Inductance and capacitance reactance measuring instrument having minimal inclusion of stray reactances
US3784906A *1971-11-01  1974-01-08  Biddle Co J  Bridge having multiple nulls
US3786350A *1972-08-21  1974-01-15  Weston Instruments Inc  Linear input ohmmeter
US3873917A *1973-03-24  1975-03-25  Hottinger Messtechnik Baldwin  Measuring bridge circuit
Family To Family Citations
DE892308C *1944-02-291953-10-05  Aeg  Circuit arrangement for the indication of the size of selbsttaetigen Wechselstromwiderstaenden magnitude and phase

Cited by:
Publication number  Priority date  Publication date  Assignee  Title
US4546441A *1982-07-22  1985-10-08  John Burch  Method and apparatus for time based measurement of impedance
US4808914A *1985-10-17  1989-02-28  Harris Corporation  Resistance measuring ohms converter circuit employing a constant current source
DE3812633A1 *1988-04-15  1989-10-26  Daimler Benz Ag  A method for contactless resistance measurement
US5030919A *1990-06-04  1991-07-09  G&E Test Technologies, Inc.Z  ero impedance switch
US5278512A *1992-05-15  1994-01-11  Richard Goldstein  Apparatus and method for continuously monitoring grounding conductor resistance in power distribution systems
US6198295B11999-01-06  2001-03-06  Honeywell Inc.  Apparatus and method for detecting electrical resistance change in connectors to a remote mounted sensor
US6259259B11998-04-21  2001-07-10  Vega Grieshaber Kg  Method and apparatus for automatically adjusting the measurement range of admittance level sensors
US6486679B1 *2002-01-21  2002-11-26  Kenneth David Holt  Wide-band ratiometric radio frequency bridge
US6722282B21999-12-17  2004-04-20  Schott Glas  Ignition capsule, which can be inductively activated, for occupant restraint systems, and a test circuit for said ignition capsule
US20040189330A1 *2003-01-09  2004-09-30  Ulrich Herb  Circuit and method for detecting insulation faults
US20080007270A1 *2006-07-05  2008-01-10  Hon Hai Precision Industry Co., Ltd.  Solenoid test device
US20080043992A1 *2006-07-25  2008-02-21  Gigle Semiconductor Inc.  Feedback impedance control for driving a signal
US20110291672A1 *2009-02-02  2011-12-01  Huettinger Simon  Galvanically isolated functional test for components
Family To Family Citations
DE3276681D1 *1981-05-04  1987-08-13  Dentsply Int Inc  Dental adhesive system
USRE35264E *1981-05-04  1996-06-04  Dentsply Research & Development Corp.  Dental adhesive system
US4548689A *1983-09-28  1985-10-22  Mitsui Petrochemical Industries, Ltd.  Photocurable resin composition
USRE35135E *1983-09-28  1995-12-26  Mitsui Petrochemical Industries, Ltd.  Photocurable resin composition
JPH0646202B2 *1987-02-20  1994-06-15  清次郎 野坂  Direct reading precision digital capacity meter
DE69228082T2 *1991-03-12  1999-08-19  Kuraray Co  Spiroorthocarbonate compound and polymers obtained therefrom
DE4237196C1 *1992-11-04  1994-02-10  Vega Grieshaber Gmbh & Co  Method and arrangement for measuring at least one capacity
NL1033148C2 *2006-12-29  2008-07-01  Univ Delft Tech  An electrical measuring device, method and computer program product.
DE102016112201A12016-07-0  42018-01-04  Endress+Hauser Conducta Gmbh+Co. Kg  Method for fault detection of an electrical circuit and electrical circuit

Related

General Radio GR 650-A & GR 1650B Impedance Bridges
HP4260 Universal Bridge
HP 4261A LCR Meter
HP 4274A & HP 4275A LCR Meters
HP 4332 LCR Meter
HP 4395A Combination Network, Spectrum, Impedance AnalyzerMarconi TF-2700 Universal Bridge
SR715 LCR Meter
Impedance
ZM-11/U Capactance-Inductance-Resistance Bridge, line powered
ZM4 Bridge battery powered

References

GenRad 1657 RLC Digibridge -

Links

PRC68, Alphanumeric Index of Web pages, Contact, Products for Sale
Page Created 2019 October 15