GB2025630B - Electrical bridge circuit with compensation for long-term drift - Google Patents

Electrical bridge circuit with compensation for long-term drift

Info

Publication number
GB2025630B
GB2025630B GB7904610A GB7904610A GB2025630B GB 2025630 B GB2025630 B GB 2025630B GB 7904610 A GB7904610 A GB 7904610A GB 7904610 A GB7904610 A GB 7904610A GB 2025630 B GB2025630 B GB 2025630B
Authority
GB
United Kingdom
Prior art keywords
compensation
long
bridge circuit
electrical bridge
term drift
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
Application number
GB7904610A
Other versions
GB2025630A (en
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.)
Thermo Electron Weighing and Inspection Ltd
Original Assignee
Goring Kerr 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 Goring Kerr Ltd filed Critical Goring Kerr Ltd
Priority to GB7904610A priority Critical patent/GB2025630B/en
Publication of GB2025630A publication Critical patent/GB2025630A/en
Application granted granted Critical
Publication of GB2025630B publication Critical patent/GB2025630B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value
    • G01R17/06—Automatic balancing arrangements
GB7904610A 1977-11-10 1979-02-09 Electrical bridge circuit with compensation for long-term drift Expired GB2025630B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7904610A GB2025630B (en) 1977-11-10 1979-02-09 Electrical bridge circuit with compensation for long-term drift

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4689977 1977-11-10
GB7904610A GB2025630B (en) 1977-11-10 1979-02-09 Electrical bridge circuit with compensation for long-term drift

Publications (2)

Publication Number Publication Date
GB2025630A GB2025630A (en) 1980-01-23
GB2025630B true GB2025630B (en) 1982-06-30

Family

ID=26265930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7904610A Expired GB2025630B (en) 1977-11-10 1979-02-09 Electrical bridge circuit with compensation for long-term drift

Country Status (1)

Country Link
GB (1) GB2025630B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3274391D1 (en) * 1981-02-09 1987-01-08 Goring Kerr Ltd Metal detection apparatus
FR2507785A1 (en) * 1981-06-11 1982-12-17 Lassus Jacques Metal detector using two coils - emits audible signal at one frequency for ferrous objects and another frequency for non-ferrous objects
FR2518269A1 (en) * 1981-12-10 1983-06-17 Lassus Jacques Metal detector having one emitter and two receiver coils in head - producing complementary signals to differential amplifier in presence of metallic object such that constant output is maintained
GB2147706B (en) * 1983-04-21 1987-02-04 John Hugh Davey Walton Apparatus for balancing an electrical network
DE3339093A1 (en) * 1983-10-28 1985-05-09 Festo KG, 7300 Esslingen APPROACH SENSOR
GB2230611B (en) * 1989-03-30 1993-02-03 Cintex Ltd Product monitoring
GB9325623D0 (en) * 1993-12-15 1994-02-16 Hutchings Michael J Particle detection apparatus
EP1059542B1 (en) * 1999-05-29 2006-10-25 ERHARDT + LEIMER GmbH Method and means for detecting metal bodies on a moving web
EP2439560B1 (en) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Method for monitoring the operation of a metal detection system and metal detection system
CN103180760B (en) 2010-10-07 2016-10-26 梅特勒-托利多安全线有限公司 For operating method and the metal detecting system of metal detecting system
EP2439559B1 (en) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Method for operating of a metal detection system and metal detection system
US9018935B2 (en) 2011-09-19 2015-04-28 Mettler-Toledo Safeline Limited Method for operating a metal detection apparatus and apparatus
US9921045B2 (en) 2013-10-22 2018-03-20 Qualcomm Incorporated Systems, methods, and apparatus for increased foreign object detection loop array sensitivity
US10295693B2 (en) 2014-05-15 2019-05-21 Witricity Corporation Systems, methods, and apparatus for foreign object detection loop based on inductive thermal sensing
US10302795B2 (en) * 2014-12-30 2019-05-28 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space
US10324215B2 (en) 2014-12-30 2019-06-18 Witricity Corporation Systems, methods, and apparatus for detecting ferromagnetic foreign objects in a predetermined space

Also Published As

Publication number Publication date
GB2025630A (en) 1980-01-23

Similar Documents

Publication Publication Date Title
JPS53131726A (en) Environmental light compensating circuit
GB2025630B (en) Electrical bridge circuit with compensation for long-term drift
JPS5750030A (en) Temperature compensation type voltage reference circuit
JPS53142159A (en) Temperature compensation switching circuit
JPS5393353A (en) Current stabilizer
GB2007408B (en) Electrical timepiece
AT383927B (en) ERROR COMPENSATION CIRCUIT
IT1093718B (en) ELECTRICAL CIRCUIT
JPS5388144A (en) Standard voltage circuit having zero temperature factor
JPS5467695A (en) Bushing for connection
GB2005846B (en) Current measuring circuit
JPS549517A (en) Compensating circuit
JPS5480189A (en) Reference electrode for high temperature
JPS5442872A (en) Ballast stabilizer circuit
GB2009947B (en) Bridge circuit
JPS5443560A (en) Electrode drawing structure for thermistor
NO149192C (en) ELECTRICAL CONNECTION
GB2014388B (en) Transistor bridge circuit
JPS5474476A (en) Voltage measuring circuit
JPS53103591A (en) High voltage connector
JPS545555A (en) Voltage fluctuation compensating circuit
GB2006997B (en) Electrical timepiece
AT376075B (en) OFFSET VOLTAGE COMPENSATION CIRCUIT
JPS53109680A (en) Temperature compensating circuit for generating voltage
DD134175A1 (en) DRIFT COMPENSATION CIRCUIT

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee