GB1152833A - Improvements in or relating to the Measurement of a Variable - Google Patents

Improvements in or relating to the Measurement of a Variable

Info

Publication number
GB1152833A
GB1152833A GB1844666A GB1844666A GB1152833A GB 1152833 A GB1152833 A GB 1152833A GB 1844666 A GB1844666 A GB 1844666A GB 1844666 A GB1844666 A GB 1844666A GB 1152833 A GB1152833 A GB 1152833A
Authority
GB
United Kingdom
Prior art keywords
bridge
capacitive coupling
rotating part
bridges
switch
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
GB1844666A
Inventor
Graham Davidson Guy
Leonard George Wardle
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.)
English Electric Co Ltd
Original Assignee
English Electric Co 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB1844666A priority Critical patent/GB1152833A/en
Publication of GB1152833A publication Critical patent/GB1152833A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/32—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using change of resonant frequency of a crystal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/225—Measuring circuits therefor
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/06—Arrangements for transmitting signals characterised by the use of a wireless electrical link using capacity coupling

Abstract

1,152,833. Telemetering. ENGLISH ELECTRIC CO. Ltd. April 26, 1967 [April 27, 1966], No.18446/66. Heading G1N. In apparatus for measuring a variable on a rotating body, power from a crystal oscillator mounted on a non-rotating part is transferred through a tuned transformer to provide an A. C. input for a measuring bridge 20 on the rotating body and the output of the bridge is connected into a frequency modulated A.C. and transferred through a capacitive coupling 24 to an indicating system on the non-rotating part. In the embodiment described with reference to Fig.1, one of the resistances in bridge 20 is a strain gauge. In another arrangement, described with reference to Fig.2 (not shown), eight bridges (20) each contain a temperature measuring resistance and their outputs are connected to the capacitive coupling (24) via a time division multiplex system comprising three oscillators of different frequencies on the non-rotating part, connected via a sequence switch (34) and a capacitive coupling (37) to a scanner switch (30) on the rotating part. The scanner switch may be between the bridges and a common voltage-to-frequency converter, or each bridge may have its own converter in which case the scanner switch is between the converters and the capacitive coupling (24). Eight indicators each show the value of temperature last measured by their respective bridges. An over-ride control may be provided to enable a bridge to be selected for continuous monitoring. Alarms may be provided.
GB1844666A 1966-04-27 1966-04-27 Improvements in or relating to the Measurement of a Variable Expired GB1152833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1844666A GB1152833A (en) 1966-04-27 1966-04-27 Improvements in or relating to the Measurement of a Variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1844666A GB1152833A (en) 1966-04-27 1966-04-27 Improvements in or relating to the Measurement of a Variable

Publications (1)

Publication Number Publication Date
GB1152833A true GB1152833A (en) 1969-05-21

Family

ID=10112572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1844666A Expired GB1152833A (en) 1966-04-27 1966-04-27 Improvements in or relating to the Measurement of a Variable

Country Status (1)

Country Link
GB (1) GB1152833A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2338480A1 (en) * 1976-01-13 1977-08-12 Asea Ab CONTACTLESS SIGNAL TRANSMISSION DEVICE
FR2440042A1 (en) * 1978-10-26 1980-05-23 Nord Micro Elektronik Feinmech METHOD AND DEVICE FOR TRANSMITTING MEASUREMENT SIGNALS IN THE FORM OF PULSES
GB2129138A (en) * 1982-10-01 1984-05-10 Sugar Res Ltd Inductively coupled load monitoring of rotating shaft
GB2173002A (en) * 1985-01-24 1986-10-01 Mtu Muenchen Gmbh Measuring pressure & other parameters in rotating systems
EP0209588A1 (en) * 1985-01-11 1987-01-28 Indala Corp Identification system.
WO1987006746A1 (en) * 1986-04-28 1987-11-05 American Telephone & Telegraph Company Personal memory card system
WO1987006747A1 (en) * 1986-04-28 1987-11-05 American Telephone & Telegraph Company Personal memory card
EP0604387A1 (en) * 1992-12-15 1994-06-29 SBM SCHOELLER-BLECKMANN Medizintechnik Gesellschaft m.b.H. Measuring arrangement

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2338480A1 (en) * 1976-01-13 1977-08-12 Asea Ab CONTACTLESS SIGNAL TRANSMISSION DEVICE
FR2440042A1 (en) * 1978-10-26 1980-05-23 Nord Micro Elektronik Feinmech METHOD AND DEVICE FOR TRANSMITTING MEASUREMENT SIGNALS IN THE FORM OF PULSES
GB2129138A (en) * 1982-10-01 1984-05-10 Sugar Res Ltd Inductively coupled load monitoring of rotating shaft
EP0209588A1 (en) * 1985-01-11 1987-01-28 Indala Corp Identification system.
EP0209588A4 (en) * 1985-01-11 1987-07-27 Indala Corp Identification system.
GB2173002B (en) * 1985-01-24 1989-07-19 Mtu Muenchen Gmbh Device for measuring pressures in rotating systems
GB2173002A (en) * 1985-01-24 1986-10-01 Mtu Muenchen Gmbh Measuring pressure & other parameters in rotating systems
WO1987006746A1 (en) * 1986-04-28 1987-11-05 American Telephone & Telegraph Company Personal memory card system
US4795898A (en) * 1986-04-28 1989-01-03 American Telephone And Telegraph Company Personal memory card having a contactless interface using differential data transfer
US4798322A (en) * 1986-04-28 1989-01-17 American Telephone And Telegraph Company Card reader/writer station for use with a personal memory card using differential data transfer
WO1987006747A1 (en) * 1986-04-28 1987-11-05 American Telephone & Telegraph Company Personal memory card
EP0604387A1 (en) * 1992-12-15 1994-06-29 SBM SCHOELLER-BLECKMANN Medizintechnik Gesellschaft m.b.H. Measuring arrangement
US5426428A (en) * 1992-12-15 1995-06-20 Sbm Schoeller-Bleckmann Medizintechnik Gesellschaft M.B.H. Measuring arrangement

Similar Documents

Publication Publication Date Title
US4158810A (en) Telemetering post for measuring variables in a high-voltage overhead line
GB1432874A (en) Electrical measuring apparatus employing analogue condition responsive means to operate remote digital indicators
ES464949A1 (en) Interface unit for use between analog sensors and a microprocessor
GB1152833A (en) Improvements in or relating to the Measurement of a Variable
GB1454486A (en) Oscillator circuit
GB1210181A (en) Improvements in or relating to electrical filter devices
GB1322230A (en) Method of monitoring a pressure system and device for monitoring the system
GB1027885A (en) Improvements relating to apparatus for indicating the departure of a variable quantity from a datum value
SU467382A1 (en) Device for determining loads of electric drives
GB1113770A (en) Measurement classification apparatus
SU725002A1 (en) Shf device for measuring dielectric properties of materials
GB1373822A (en) Temperature measurement
ES461842A1 (en) Consistometer with sensors failure and sensors misalignment indicating means
SU590594A2 (en) Strain-gauge device
SU145919A1 (en) Multichannel phase device
SU570797A1 (en) Device for measuring temperature
SU789854A1 (en) Frequency meter
SU663095A1 (en) Device for monitoring time intervals of coded messages
JPS5488745A (en) Operation monitor system for digital unit
SU970250A1 (en) Digital meter of power
GB1217545A (en) Very-low and low-frequency precision phase calibrator
SU773911A1 (en) Adjustable pulse generator
SU859964A1 (en) Devoce for measuring frequency deviation
SU760145A1 (en) Temperature signalling device
SU898339A1 (en) Frequency meter

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees