GB1130274A - Improvements in or relating to strain sensitive bridges and the fabrication thereof - Google Patents

Improvements in or relating to strain sensitive bridges and the fabrication thereof

Info

Publication number
GB1130274A
GB1130274A GB374067A GB374067A GB1130274A GB 1130274 A GB1130274 A GB 1130274A GB 374067 A GB374067 A GB 374067A GB 374067 A GB374067 A GB 374067A GB 1130274 A GB1130274 A GB 1130274A
Authority
GB
United Kingdom
Prior art keywords
bridge
arms
chromium
film
point
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
GB374067A
Inventor
Cecil Kingsley Stedman
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.)
Statham Instruments Inc
Statham Instrument Inc
Original Assignee
Statham Instruments Inc
Statham Instrument Inc
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 Statham Instruments Inc, Statham Instrument Inc filed Critical Statham Instruments Inc
Priority to GB374067A priority Critical patent/GB1130274A/en
Publication of GB1130274A publication Critical patent/GB1130274A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • 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
    • G01L1/2268—Arrangements for correcting or for compensating unwanted effects
    • G01L1/2281—Arrangements for correcting or for compensating unwanted effects for temperature variations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Force In General (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

1,130,274. Measuring strain electrically. STATHAM INSTRUMENTS Inc. Jan.25, 1967, No.3740/67. Heading G1N. A strain gauge comprises four arms R1, R2, R3, R4 formed by depositing by vacuum electro-deposition a film of chromium-silicon alloy on either a glass or quartz substrate or a stainless steel substrate M which is insulated by a film of silicon monoxide. Three bridge terminals are formed by ears 16, 18, 20 to which a layer of indium is bonded. The remaining two arms are linked by a vacuum electro-deposited patch of chromium 22 which has a thermal coefficient of resistance different from that of the bridge arms so that a point on its surface can be found which minimizes the thermal zero shift of the bridge. The remaining connection is made to this point. In a modification, Fig. 3 (not shown) two such compensating patches are provided at opposed apices of the bridge.
GB374067A 1967-01-25 1967-01-25 Improvements in or relating to strain sensitive bridges and the fabrication thereof Expired GB1130274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB374067A GB1130274A (en) 1967-01-25 1967-01-25 Improvements in or relating to strain sensitive bridges and the fabrication thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB374067A GB1130274A (en) 1967-01-25 1967-01-25 Improvements in or relating to strain sensitive bridges and the fabrication thereof

Publications (1)

Publication Number Publication Date
GB1130274A true GB1130274A (en) 1968-10-16

Family

ID=9764062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB374067A Expired GB1130274A (en) 1967-01-25 1967-01-25 Improvements in or relating to strain sensitive bridges and the fabrication thereof

Country Status (1)

Country Link
GB (1) GB1130274A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445956A1 (en) * 1979-01-08 1980-08-01 Bofors America THERMAL COMPENSATION OF TRANSDUCER-EXTENSOMETERS BY MEANS OF LAMINATED RESISTORS ADJUSTABLE BY ABRASION
EP0118229B1 (en) * 1983-02-09 1987-06-24 Strain Measurement Devices Limited Strain gauges and their method of manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445956A1 (en) * 1979-01-08 1980-08-01 Bofors America THERMAL COMPENSATION OF TRANSDUCER-EXTENSOMETERS BY MEANS OF LAMINATED RESISTORS ADJUSTABLE BY ABRASION
EP0118229B1 (en) * 1983-02-09 1987-06-24 Strain Measurement Devices Limited Strain gauges and their method of manufacture

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