GB1064957A – Improved temperature compensated transducer
– Google Patents
GB1064957A – Improved temperature compensated transducer
– Google Patents
Improved temperature compensated transducer
Info
Publication number
GB1064957A
GB1064957A
GB49673/63A
GB4967363A
GB1064957A
GB 1064957 A
GB1064957 A
GB 1064957A
GB 49673/63 A
GB49673/63 A
GB 49673/63A
GB 4967363 A
GB4967363 A
GB 4967363A
GB 1064957 A
GB1064957 A
GB 1064957A
Authority
GB
United Kingdom
Prior art keywords
rod
change
strain gauges
bimetallic
compensates
Prior art date
1962-12-26
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
GB49673/63A
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.)
SHIH YING LEE
Original Assignee
SHIH YING LEE
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.)
1962-12-26
Filing date
1963-12-16
Publication date
1967-04-12
1963-12-16
Application filed by SHIH YING LEE
filed
Critical
SHIH YING LEE
1967-04-12
Publication of GB1064957A
publication
Critical
patent/GB1064957A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G01L1/2268—Arrangements for correcting or for compensating unwanted effects
G01L1/2281—Arrangements for correcting or for compensating unwanted effects for temperature variations
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
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
Abstract
1,064,957. Measuring electrically; force measuring. SHIH YING LEE and YAO TZU LI. Dec.16, 1963 [Dec.26, 1962], No.49673/63. Headings G1N and G1W. Strain gauges on an arm 96, Fig. 18, measuring the force in a rod 102 are compensated for temperature dependent variations in their output signals and sensitivities by a bimetallic U-shaped strip 50 carrying two struts 42, 44, attached to a common point 52 on the rod 102. The two ends of the U50, shift under temperature variations to change the separation of the ends of the struts, and consequently the stiffness of the strut frame varies so that resistance to movement of the rod 102 is varied and the sensitivity of the system is varied in a sense which compensates for the temperature dependent changes in the sensitivity of the strain gauges. A screw 160 adjusts the inclination of the strut frame to the rod Figs. 14, 15, 16 (not shown) so that a change with temperature in the opening of the U tends to move the point 52 upwards (Fig. 16) or downwards (Fig. 15) and thus for a given force in the rod 102 a change in the output of the strain gauges is obtained which compensates for that change resulting from their own temperature coefficients of resistance and expansion. The effective length of the bimetallic arms is adjustable by a bolt 68 slidable along a slot 70, Fig. 9 (not shown) in the U or by a slug screwable along the inside of the U Fig. 19 (not shown), thus enabling the compensation characteristics to be matched to the strain gauges used. A spring bracket 80 also Fig. 12 (not shown) introduces a further change of characteristic when the U-arms have opened a certain amount. The rod 102 may be connected to a pressure sensitive diaphragm 130, Fig. 18, and the lever member 124 carries a spring 132 for zero adjustment of the strain gauge output, and also a mass 146 which compensates for any effects due to acceleration of the whole apparatus. Other arrangements include a composite member Fig. 20 (not shown), formed from two bowed struts, which member combines the functions of the bimetallic strip and stiffness frame, and a beam arrangement Fig.21 (not shown) in which sensitivity control is obtained by varying the effective fulcrum about which the beam 196 turns under the action of a spring 222. The fulcrum is the cross-over point of a bimetallic strip 216 attached at right angles to the beam and a resilient extension of the beam, 204, this point being caused to move by the bowing of the bimetallic strip 216.
GB49673/63A
1962-12-26
1963-12-16
Improved temperature compensated transducer
Expired
GB1064957A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US247191A
US3199345A
(en)
1962-12-26
1962-12-26
Temperature compensated transducer
Publications (1)
Publication Number
Publication Date
GB1064957A
true
GB1064957A
(en)
1967-04-12
Family
ID=22933960
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB49673/63A
Expired
GB1064957A
(en)
1962-12-26
1963-12-16
Improved temperature compensated transducer
Country Status (2)
Country
Link
US
(1)
US3199345A
(en)
GB
(1)
GB1064957A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE102014206759A1
(en)
*
2014-04-08
2015-10-08
Schaeffler Technologies AG & Co. KG
Measuring element and a measuring element exhibiting component
Families Citing this family (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3304773A
(en)
*
1964-03-26
1967-02-21
Vernon L Rogallo
Force transducer
US4476946A
(en)
*
1982-11-03
1984-10-16
General Electric Company
Weight measuring arrangement for cooking appliance surface unit
US4543837A
(en)
*
1984-04-25
1985-10-01
Allegany Technology, Inc.
Load cell temperature compensation system
US7100432B2
(en)
*
2002-06-06
2006-09-05
Mineral Lassen Llc
Capacitive pressure sensor
DE10339411B3
(en)
*
2003-08-27
2005-03-10
Schott Ag
Protecting glass ceramic hobs from heat induced damage has specific areas continually monitored for stress levels
TW200718902A
(en)
*
2005-11-11
2007-05-16
Wen-Qing Li
Electric cooker
US8887584B2
(en)
2009-01-20
2014-11-18
Tohoku University
Load measuring apparatus
CN102207435B
(en)
*
2011-03-25
2013-06-26
宾伟雄
Method for eliminating horizontal offset of tractive force testing equipment, and tractive force testing equipment thereof
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1393828A
(en)
*
1916-05-12
1921-10-18
Reichmann Fritz
Weighing device
US2357356A
(en)
*
1940-11-20
1944-09-05
Olive S Petty
Measuring instrument and method
US2584950A
(en)
*
1947-03-03
1952-02-05
Toledo Scale Co
Sensitivity adjustment for weighing scales
US3034345A
(en)
*
1959-05-19
1962-05-15
Bell Telephone Labor Inc
Gauges using piezoresistive elements
1962
1962-12-26
US
US247191A
patent/US3199345A/en
not_active
Expired – Lifetime
1963
1963-12-16
GB
GB49673/63A
patent/GB1064957A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE102014206759A1
(en)
*
2014-04-08
2015-10-08
Schaeffler Technologies AG & Co. KG
Measuring element and a measuring element exhibiting component
Also Published As
Publication number
Publication date
US3199345A
(en)
1965-08-10
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