ZA928932B - Electronic force sensing load cell - Google Patents

Electronic force sensing load cell

Info

Publication number
ZA928932B
ZA928932B ZA928932A ZA928932A ZA928932B ZA 928932 B ZA928932 B ZA 928932B ZA 928932 A ZA928932 A ZA 928932A ZA 928932 A ZA928932 A ZA 928932A ZA 928932 B ZA928932 B ZA 928932B
Authority
ZA
South Africa
Prior art keywords
load cell
force sensing
sensing load
electronic force
electronic
Prior art date
Application number
ZA928932A
Other languages
English (en)
Inventor
Thomas H Johnson
Original Assignee
Weigh Tronic 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 Weigh Tronic Inc filed Critical Weigh Tronic Inc
Publication of ZA928932B publication Critical patent/ZA928932B/xx

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
    • G01L1/2243—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being parallelogram-shaped
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G21/00—Details of weighing apparatus
    • G01G21/24—Guides or linkages for ensuring parallel motion of the weigh-pans
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
    • G01G3/1402—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01G3/1412—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being parallelogram shaped
    • 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
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • G01L1/162—Measuring force or stress, in general using properties of piezoelectric devices using piezoelectric resonators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/097—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by vibratory elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Force In General (AREA)
ZA928932A 1992-04-03 1992-11-19 Electronic force sensing load cell ZA928932B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/862,827 US5336854A (en) 1992-04-03 1992-04-03 Electronic force sensing load cell

Publications (1)

Publication Number Publication Date
ZA928932B true ZA928932B (en) 1994-05-19

Family

ID=25339475

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA928932A ZA928932B (en) 1992-04-03 1992-11-19 Electronic force sensing load cell

Country Status (10)

Country Link
US (1) US5336854A (pm)
EP (1) EP0634006B1 (pm)
CN (1) CN1077025A (pm)
AU (1) AU2787292A (pm)
DE (1) DE69224396T2 (pm)
MX (1) MX9301931A (pm)
PT (1) PT101128A (pm)
TW (1) TW221490B (pm)
WO (1) WO1993020418A1 (pm)
ZA (1) ZA928932B (pm)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5823278A (en) * 1994-10-13 1998-10-20 Future Systems, Inc. Caster mounted weighing system
US5831221A (en) * 1994-10-13 1998-11-03 Future Sysems, Inc. Caster mounted weighing system
US5629489A (en) * 1995-02-06 1997-05-13 Weigh-Tronix, Inc. Load cell assembly with linearization and common mode discrimination of complementary force-responsive signals
US5837946A (en) * 1995-06-16 1998-11-17 Weigh-Tronix, Inc. Force sensitive scale and dual load sensor cell for use therewith
US5750937A (en) * 1996-03-07 1998-05-12 Weigh-Tronix, Inc. Multi-load cell force sensing apparatus
AUPO637697A0 (en) * 1997-04-22 1997-05-15 Kellenbach, Arthur Multiple capacity load cell
AU731312B2 (en) * 1997-04-22 2001-03-29 Kellco Technologies Pty Ltd Load cell
US6546806B1 (en) * 1999-09-17 2003-04-15 Ut-Battelle Multi-range force sensors utilizing shape memory alloys
DE10109121A1 (de) * 2001-02-24 2002-09-05 Schenck Process Gmbh Kraftaufnehmer
DE10139333A1 (de) * 2001-08-10 2003-03-06 Biedermann Motech Gmbh Sensoreinrichtung, insbesondere für eine Prothese und Prothese mit einer solchen Sensoreinrichtung
US20030197094A1 (en) * 2001-12-07 2003-10-23 Daniel Preston Load measuring device
DE10243043B4 (de) * 2002-09-12 2005-08-04 EBM Brosa Messgeräte GmbH & Co. KG Meßblock
US7086299B2 (en) * 2003-05-08 2006-08-08 Kulite Semiconductor Products, Inc. Multi-load beam apparatus to prevent improper operation due to off-axis loads
US7513752B2 (en) * 2003-09-04 2009-04-07 Fbimonitoring, Inc. Beam pump dynamic load monitoring and methods
US6860156B1 (en) * 2004-05-24 2005-03-01 The United States Of America As Represented By The Secretary Of The Navy Combined in-plane shear and multi-axial tension or compression testing apparatus
JP4375400B2 (ja) * 2004-08-20 2009-12-02 三菱電機株式会社 反射鏡支持機構
US7444883B2 (en) * 2005-12-22 2008-11-04 Honeywell International Inc. Vibrating beam force transducer
KR100972117B1 (ko) * 2008-05-09 2010-07-23 (주)인벤티오 하중 측정용 탄성체 및 이를 이용한 비접촉 하중 측정 장치
DE102009030229A1 (de) * 2009-06-23 2010-12-30 Soehnle Professional Gmbh & Co. Kg Kraftaufnehmer
DE102010003504A1 (de) * 2010-03-31 2011-10-06 Voith Patent Gmbh Bahn- oder Streifenzugmessvorrichtung, Verwendung einer derartigen Bahn- oder Streifenzugmessvorrichtung und Verfahren zur Ermittlung des Bahnzuges
DE102010040905A1 (de) 2010-09-16 2012-03-22 Aloys Wobben Schiff
CN102445288B (zh) * 2010-10-05 2013-07-17 杨锦堂 大载荷压、拉力传感器
CN104040725B (zh) 2011-08-17 2017-08-22 公共服务解决方案公司 用于成像系统的无源检测器
JP5867688B2 (ja) * 2011-09-22 2016-02-24 国立大学法人 東京大学 触覚センサ及び多軸触覚センサ
US9709436B2 (en) * 2013-03-15 2017-07-18 Illinois Tool Works Inc. Load cell that is symmetrical about a central vertical axis
WO2015050962A1 (en) * 2013-10-02 2015-04-09 Lts Scale Company, Llc Material handling device and weighing apparatus usable therewith
EP3155389B1 (en) 2014-06-11 2019-05-08 EILERSEN, Nils Aage Juul Load cell having an elastic body
CN108291846B (zh) * 2015-12-07 2020-08-04 尼尔斯·奥格·尤尔·艾勒森 测压仪
CN106248188B (zh) * 2016-09-07 2019-02-01 合肥三冠包装科技有限公司 一种六头秤称重仪的称重电路
CN106441542B (zh) * 2016-09-07 2019-02-01 合肥三冠包装科技有限公司 一种标准六头秤的调压震动器调压电路
CN106248190B (zh) * 2016-09-07 2018-09-14 合肥三冠包装科技有限公司 一种四头秤称重模块及震动调压电路
GB2556040A (en) * 2016-11-10 2018-05-23 Geometric Design Ltd Vibrating-element force transducer
EP3548856B1 (de) * 2016-11-30 2021-05-19 Kistler Holding AG Messwertaufnehmer zum messen einer kraft
US10866258B2 (en) * 2018-07-20 2020-12-15 Honeywell International Inc. In-plane translational vibrating beam accelerometer with mechanical isolation and 4-fold symmetry
WO2020028768A1 (en) * 2018-08-03 2020-02-06 Illinois Tool Works Inc. Load cell
US10816419B2 (en) 2019-01-25 2020-10-27 FUTEK Advanced Sensor Technology Tripedal flexure member and load/torque measurement systems using same
TWI696810B (zh) * 2019-08-09 2020-06-21 國立中山大學 力量感測器及其感測件
JP7441493B2 (ja) 2020-03-19 2024-03-01 株式会社イシダ ロードセルユニット及び計量装置
CN113237421B (zh) * 2021-05-31 2023-11-17 中航电测仪器股份有限公司 一种轴销形应变式传感器
US20230074166A1 (en) * 2021-09-08 2023-03-09 FUTEK Advanced Sensor Technology Force transducer with printed circuit board
US20230405833A1 (en) * 2022-06-15 2023-12-21 Kitchen Robotics Ltd. Apparatus and Method for Weighing Food Ingredients In An Automated Cooking Apparatus

Family Cites Families (149)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140450A (en) * 1961-02-13 1964-07-07 Edcliff Instr Inc Force controlled variable reactance transducer
US3161046A (en) * 1961-06-13 1964-12-15 Baldwin Lima Hamilton Corp Load cell
US3238789A (en) * 1961-07-14 1966-03-08 Litton Systems Inc Vibrating bar transducer
US3269192A (en) * 1962-11-07 1966-08-30 Gen Precision Inc Tuning fork digital accelerometer
US3440888A (en) * 1962-11-07 1969-04-29 Gen Precision Systems Inc Bifurcate resonance column
US3274828A (en) * 1963-08-27 1966-09-27 Charles F Pulvari Force sensor
US3486383A (en) * 1965-01-04 1969-12-30 Singer General Precision Vibrating beam transducer
US3413859A (en) * 1965-01-04 1968-12-03 Gen Precision Systems Inc Digital rate gyro
US3465597A (en) * 1965-05-25 1969-09-09 Singer General Precision Vibrating-column accelerometer
US3332506A (en) * 1965-07-06 1967-07-25 Nat Res Dev Sensitive weighing apparatus
GB1181515A (en) * 1966-05-18 1970-02-18 Solartron Electronic Group Improvements in or relating to Force-Measuring Apparatus.
US3366191A (en) * 1966-07-28 1968-01-30 Pillsbury Co Method and apparatus for weighing articles
US3404744A (en) * 1966-08-12 1968-10-08 Reliance Electric & Eng Co Disenabling mechanism for lever in ratio balance
US3505866A (en) * 1966-10-13 1970-04-14 Singer General Precision Single tine digital force transducer
US3399572A (en) * 1966-12-01 1968-09-03 Gen Precision Inc Vibrating beam pressure transducer
US3434090A (en) * 1967-03-01 1969-03-18 Whittaker Corp Compound strain gage structure
US3479536A (en) * 1967-03-14 1969-11-18 Singer General Precision Piezoelectric force transducer
US3513356A (en) * 1967-06-27 1970-05-19 Westinghouse Electric Corp Electromechanical tuning apparatus particularly for microelectronic components
US3826931A (en) * 1967-10-26 1974-07-30 Hewlett Packard Co Dual crystal resonator apparatus
US3470400A (en) * 1967-12-21 1969-09-30 Singer General Precision Single beam force transducer with integral mounting isolation
US3552511A (en) * 1968-04-25 1971-01-05 Fairbanks Morse Inc Method and apparatus for calculating a piece count by weighing calculations
US3541849A (en) * 1968-05-08 1970-11-24 James P Corbett Oscillating crystal force transducer system
US3557891A (en) * 1968-09-11 1971-01-26 Reliance Electric & Eng Co Electrical counting scale
CH492961A (de) * 1969-02-28 1970-06-30 Wirth Gallo & Co Elektrischer Massen- oder Kraftmesser
US3604525A (en) * 1969-08-15 1971-09-14 Wm Ainsworth Inc Automatic top-loading weigh apparatus with electronic measuring and recording circuit
US3742418A (en) * 1970-08-03 1973-06-26 G Randolph Electromechanical deflection sensing device
US3684875A (en) * 1970-09-28 1972-08-15 Wm Ainsworth Inc Analog-to-digital measuring apparatus
US3685604A (en) * 1970-09-28 1972-08-22 Wm Ainsworth Inc Balanced mass-moment balance beam with electrically conductive pivots
US3712395A (en) * 1970-11-16 1973-01-23 Franklin Electric Co Inc Weight sensing cell
US3683213A (en) 1971-03-09 1972-08-08 Statek Corp Microresonator of tuning fork configuration
US3716706A (en) * 1971-04-01 1973-02-13 Howe Richardson Scale Co Piece counting system
CH537576A (de) * 1971-04-26 1973-05-31 Mettler Instrumente Ag Kraftmessvorrichtung
GB1322871A (en) 1971-06-23 1973-07-11 Mettler Instrumente Ag Force-measuring apparatuses
US3897681A (en) * 1971-06-23 1975-08-05 Mettler Instrumente Ag Force measuring apparatus of the vibratory string type
CH541799A (de) * 1971-08-02 1973-09-15 Wirth Gallo & Co Elektronischer Massen- und Kraftmesser
CH536488A (de) * 1971-08-19 1973-04-30 Mettler Instrumente Ag Kraftmesser
US3766616A (en) * 1972-03-22 1973-10-23 Statek Corp Microresonator packaging and tuning
CH550999A (de) * 1972-04-24 1974-06-28 Wirth Gallo & Co Verfahren zur selbsttaetigen feinjustierung von numerisch anzeigenden waagen und waage zur durchfuehrung dieses verfahrens.
CH538678A (de) * 1972-05-16 1973-06-30 Wirth Gallo & Co Elektrischer Massen- und Kraftmesser
CH544294A (de) * 1972-06-27 1973-11-15 Mettler Instrumente Ag Elektrische Waage
US3863497A (en) * 1972-10-24 1975-02-04 Sperry Rand Corp Acoustic delay surface wave motion transducers
DE2335658A1 (de) 1973-07-13 1975-01-30 Erich Brosa Kraftmessring
US3902374A (en) * 1973-10-19 1975-09-02 Singer Co Electrostatic rate gyroscope
US4167686A (en) * 1973-12-21 1979-09-11 Hitohiro Fukuyo Miniaturized at-cut piezoelectric crystal resonator
GB1471172A (en) * 1974-07-12 1977-04-21 Nat Res Dev Weighing devices
US3951221A (en) * 1974-09-30 1976-04-20 National Controls, Inc. Computing postal scale
CH589281A5 (pm) * 1975-01-09 1977-06-30 Centre Electron Horloger
US3915248A (en) * 1975-01-10 1975-10-28 Owen Paelian Weighing system
US4088014A (en) * 1975-01-14 1978-05-09 Wirth, Gallo & Co. Mass and force meter
US4009608A (en) * 1975-01-20 1977-03-01 Ormond Alfred N Shear measuring flexure isolated load cells
CH588071A5 (pm) * 1975-01-23 1977-05-31 Wirth Gallo & Co
US3998104A (en) * 1975-06-30 1976-12-21 The Singer Company Fluid pressure pulsed rebalanced accelerometer
US4041289A (en) * 1975-11-12 1977-08-09 Kulite Semiconductor Products, Inc. Digital scale or weighing apparatus
SU559136A1 (ru) 1976-02-02 1977-05-25 Московский Институт Электронного Машиностроения Устройство дл измерени усилий
CH604148A5 (pm) * 1976-02-09 1978-08-31 Wirth Gallo & Co
US4026158A (en) * 1976-02-24 1977-05-31 The Singer Company Temperature compensation for a damped fluid proof mass accelerometer
US4014397A (en) * 1976-05-07 1977-03-29 Langevin Donald R Electrical counting scale
US4064744A (en) * 1976-06-04 1977-12-27 Kistler-Morse Corporation Strain sensorextensiometer
US4139070A (en) * 1976-09-10 1979-02-13 National Controls, Inc. Dual platform counting scale
US4107985A (en) * 1976-09-10 1978-08-22 National Controls, Inc. Load cell
US4089217A (en) * 1976-09-16 1978-05-16 Tedea Technological Development And Automation Ltd. Guided-beam transducers
US4089058A (en) * 1976-12-06 1978-05-09 Resource Control Corporation Real time data processing and display system for non-linear transducers
US4143727A (en) * 1977-03-30 1979-03-13 Revere Corporation Of America Leverless scale sensor
US4104920A (en) * 1977-04-01 1978-08-08 The Singer Company Piezoelectric damping mechanism
US4109534A (en) * 1977-06-13 1978-08-29 The Singer Company Apparatus for monitoring acceleration
AU515370B2 (en) * 1977-08-01 1981-04-02 Tokyo Electric Co. Ltd. Integral beam strain gauge weigher
US4144747A (en) * 1978-01-30 1979-03-20 The Bendix Corporation Simultaneously resonated, multi-mode crystal force transducer
US4179004A (en) * 1978-02-15 1979-12-18 National Controls, Inc. Force multiplying load cell
DE7818416U1 (de) * 1978-06-20 1978-10-12 Sartorius-Werke Gmbh (Und Vormals Goettinger Praezisionswaagenfabrik Gmbh), 3400 Goettingen Ueberlastsicherung fuer eine oberschalige praezisionswaage
US4170270A (en) * 1978-06-26 1979-10-09 Pitney-Bowes, Inc. Apparatus for preventing the overload of a load cell
USD256343S (en) 1978-09-11 1980-08-12 Pennsylvania Scale Company Counting scale
USD256342S (en) 1978-09-11 1980-08-12 Pennsylvania Scale Company Counting scale
JPS5548189U (pm) * 1978-09-22 1980-03-29
US4219089A (en) * 1978-10-06 1980-08-26 Pennsylvania Scale Company Electronic counting scale
JPS5856425B2 (ja) * 1978-10-11 1983-12-14 横河電機株式会社 力変換機構
DE2939844A1 (de) * 1978-12-21 1980-07-10 Seiko Instr & Electronics Quarzschwinger
US4239088A (en) * 1979-01-08 1980-12-16 Pitney Bowes Inc. Scale with weight-to-period transducer
JPS5838738B2 (ja) * 1979-01-11 1983-08-25 横河電機株式会社 圧力計
DE2967371D1 (en) 1979-03-24 1985-03-14 Wirth Gallo Patent Ag Device for measuring masses and forces
US4215570A (en) * 1979-04-20 1980-08-05 The United States Of America As Represented By The United States Department Of Energy Miniature quartz resonator force transducer
US4221131A (en) * 1979-05-29 1980-09-09 The Singer Company Vibrating beam accelerometer
CH625372A5 (pm) * 1979-07-06 1981-09-15 Ebauchesfabrik Eta Ag
US4321500A (en) * 1979-12-17 1982-03-23 Paroscientific, Inc. Longitudinal isolation system for flexurally vibrating force transducers
US4406966A (en) * 1980-01-28 1983-09-27 Paroscientific, Inc. Isolating and temperature compensating system for resonators
FR2477803A1 (fr) * 1980-03-04 1981-09-11 Suwa Seikosha Kk Resonateur a quartz du type diapason a couplage de modes
US4386535A (en) * 1980-09-12 1983-06-07 The Singer Company Resonator restrained gyro
US4372173A (en) * 1980-10-20 1983-02-08 Quartex, Inc. Resonator force transducer
US4384495A (en) * 1980-11-17 1983-05-24 Quartex, Inc. Mounting system for applying forces to load-sensitive resonators
US4459042A (en) * 1980-11-28 1984-07-10 Novex, Inc. Vibratory digital temperature sensor
US4448546A (en) * 1980-11-28 1984-05-15 Novex, Inc. Digital temperature sensor
US4375243A (en) * 1981-03-30 1983-03-01 Doll W Gary Wide range high accuracy weighing and counting scale
DE3119806A1 (de) 1981-05-19 1982-12-16 Isetron Industrie-Sicherheits-Elektronik GmbH, 2940 Wilhelmshaven Messwertaufnehmer zur erfassung von zug- und/oder druckkraeften
US4435666A (en) * 1981-05-26 1984-03-06 Nippon Electric Co., Ltd. Lever actuator comprising a longitudinal-effect electroexpansive transducer and designed to prevent actuation from degrading the actuator
US4415827A (en) * 1981-05-27 1983-11-15 Statek Corporation Microresonator of tuning fork configuration operating at its second overtone frequency
US4429248A (en) * 1981-05-27 1984-01-31 Statek Corporation Mounting apparatus and method for piezoelectric tuning fork
US4446394A (en) * 1981-09-14 1984-05-01 The Singer Company Linearizing mechanism for a vibrating beam force transducer
US4445065A (en) * 1981-09-14 1984-04-24 The Singer Company Non-prismal beam resonator
JPS5885127A (ja) * 1981-11-16 1983-05-21 Kyowa Dengiyou:Kk 荷重変換器
US4454770A (en) * 1981-12-24 1984-06-19 Kistler-Morse Corporation Torque-insensitive load cell
US4430894A (en) * 1982-01-27 1984-02-14 The United States Of America As Represented By The Secretary Of The Air Force Adjustable fluid resistors for use in an integrating accelerometer
USD275558S (en) 1982-02-22 1984-09-18 World Wide Weighing, Inc. Counting scale
US4493384A (en) * 1982-03-31 1985-01-15 Shimadzu Corporation Electronic counting scale
DE3379623D1 (en) 1982-06-04 1989-05-18 Statek Corp Extensional mode piezoelectric microresonator
CH656711A5 (de) * 1982-07-16 1986-07-15 Mettler Instrumente Ag Waegezelle.
JPS5936919A (ja) * 1982-08-25 1984-02-29 三菱鉱業セメント株式会社 磁器コンデンサ
US4804875A (en) 1982-09-16 1989-02-14 The Singer Company Monolythic resonator vibrating beam accelerometer
US4479385A (en) * 1982-09-23 1984-10-30 The United States Of America As Represented By The Department Of Energy Double resonator cantilever accelerometer
US4467651A (en) * 1983-01-06 1984-08-28 Sundstrand Data Control, Inc. Method for determining acceleration
US4526247A (en) 1983-01-18 1985-07-02 Ohaus Scale Corporation Weighing scale transducer
EP0144311B1 (en) 1983-04-01 1992-07-15 Quartex, Inc. Double resonating beam force transducer with reduced longitudinal pumping
US4479391A (en) * 1983-04-04 1984-10-30 Quartex, Inc. Resonator force transducer assembly
US4469979A (en) * 1983-05-27 1984-09-04 Statek Corporation Microresonator of double-ended tuning fork configuration
JPS6010122A (ja) 1983-06-30 1985-01-19 Shinko Denshi Kk 荷重変換機構
US4535638A (en) 1983-10-03 1985-08-20 Quartztronics, Inc. Resonator transducer system with temperature compensation
JPS60127434A (ja) 1983-12-14 1985-07-08 Shimadzu Corp 振動式力検出器
JPS60133320A (ja) 1983-12-22 1985-07-16 Ishida Scales Mfg Co Ltd 荷重検出器
US4538461A (en) 1984-01-23 1985-09-03 Piezoelectric Technology Investors, Inc. Vibratory angular rate sensing system
US4558756A (en) 1984-04-23 1985-12-17 Toledo Transducers, Inc. Cantilever support beam assembly for a load cell and the like
DE3415962A1 (de) 1984-04-28 1985-10-31 Sartorius GmbH, 3400 Göttingen Verfahren zur initialisierung einer zaehlwaage und zaehlwaage zur durchfuehrung des verfahrens
US4592663A (en) 1984-05-10 1986-06-03 Quartex, Inc. Resonator temperature transducer
FR2566601A1 (fr) 1984-06-22 1985-12-27 Ebauchesfabrik Eta Ag Ensemble comprenant un resonateur piezo-electrique encapsule et un circuit integre associe
FR2574209B1 (fr) 1984-12-04 1987-01-30 Onera (Off Nat Aerospatiale) Resonateur a lame vibrante
DE3505165C2 (de) 1985-02-15 1986-12-04 Danfoss A/S, Nordborg Verfahren und Vorrichtung zum Messen einer Kraft
FR2580819B1 (fr) 1985-04-23 1987-05-15 Commissariat Energie Atomique Systeme pour detecter la presence d'un signal pur dans un signal bruite discret mesure a taux moyen de bruit constant avec une probabilite de fausse detection inferieure a un taux de fausse detection predetermine.
DE3530170C2 (de) 1985-08-23 1994-03-10 Sartorius Gmbh Zählwaage
US4656383A (en) 1986-02-14 1987-04-07 The Singer Company-Kearfott Division Vibrating beam force transducer with single isolator spring
US4658174A (en) 1986-03-20 1987-04-14 The Singer Company-Kearfott Division Vibrating beam force transducer with angled isolator springs
US4658175A (en) 1986-03-26 1987-04-14 The Singer Company-Kearfott Division Vibrating beam force transducer with A-frame beam root and frequency adjusting means
US4751849A (en) 1986-06-17 1988-06-21 Paroscientific, Inc. Force-sensitive resonator load cell
US4718275A (en) 1986-06-27 1988-01-12 Sundstrand Data Control, Inc. Accelerometer with floating beam temperature compensation
US4891982A (en) 1986-06-27 1990-01-09 Sundstrand Data Control, Inc. Temperature compensation of a steady-state accelerometer
US4750363A (en) 1986-06-27 1988-06-14 Sundstrand Data Control, Inc. Temperature compensation of an accelerometer
IL80550A0 (en) 1986-11-07 1987-02-27 Israel Aircraft Ind Ltd Resonant element force transducer for acceleration sensing
US4727752A (en) 1987-02-04 1988-03-01 Sundstrand Data Control, Inc. Pseudosinusoidal oscillator drive system
US4743790A (en) 1987-04-14 1988-05-10 Crystal Gage Inc. Force sensing vibrating beam resonator
US4766768A (en) 1987-10-22 1988-08-30 Sundstrand Data Control, Inc. Accelerometer with isolator for common mode inputs
US4970903A (en) 1987-10-22 1990-11-20 Hanson Richard A Force sensing device
US4810922A (en) 1988-01-19 1989-03-07 Sundstrand Data Control, Inc. Damping decoupled oscillator using a high impedance crystal
US4929860A (en) 1988-05-17 1990-05-29 Sundstrand Data Control, Inc. Electrode configuration for vibrating beam transducers
US4872343A (en) 1988-08-10 1989-10-10 Sundstrand Data Control, Inc. Matched pairs of force transducers
US4838369A (en) 1988-09-02 1989-06-13 Crystal Gage Inc. Load cell having digital output
US4912990A (en) 1989-02-27 1990-04-03 Sundstrand Data Control, Inc. Magnetically driven vibrating beam force transducer
US5005413A (en) 1989-02-27 1991-04-09 Sundstrand Data Control, Inc. Accelerometer with coplanar push-pull force transducers
US4879914A (en) 1989-02-27 1989-11-14 Sundstrand Data Control, Inc. Unitary push-pull force transducer
US5036715A (en) 1989-06-30 1991-08-06 Richard Hanson Cantilevered force sensing assembly utilizing one or two resonating force sensing devices
US4980598A (en) 1989-12-21 1990-12-25 Lucas Schaevitz Inc. Monolithic resonator for a vibrating beam accelerometer
US5109175A (en) 1989-12-21 1992-04-28 Lucas Schaevitz Inc. Monolithic resonator for vibrating beam force sensors
US5113698A (en) 1990-02-26 1992-05-19 Sundstrand Data Control, Inc. Vibrating beam transducer drive system
FR2660433B1 (fr) 1990-03-29 1992-08-14 Serc Pesage Capteur de force en particulier pour le pesage.

Also Published As

Publication number Publication date
EP0634006A1 (en) 1995-01-18
EP0634006B1 (en) 1998-02-04
PT101128A (pt) 1994-06-30
MX9301931A (es) 1994-08-31
CN1077025A (zh) 1993-10-06
AU2787292A (en) 1993-11-08
WO1993020418A1 (en) 1993-10-14
US5336854A (en) 1994-08-09
DE69224396T2 (de) 1998-09-10
DE69224396D1 (de) 1998-03-12
TW221490B (pm) 1994-03-01

Similar Documents

Publication Publication Date Title
ZA928932B (en) Electronic force sensing load cell
ZA928933B (en) Load cell
EP0738882A3 (en) Weighing sensor
GB2265954B (en) Load indicating fastener
EP0426442A3 (en) Load cell
EP0558014A3 (en) Electronic devices with sensors
HU9402331D0 (en) Load indicating fastener
EP0501351A3 (en) Load cell housing
GB2237389B (en) Load sensor
GB2245368B (en) Load sensor
GB2227329B (en) Load cell
GB2265198B (en) A load cell
EP0789234A4 (en) POWER CONVERTER SUBSTRATE AND POWER CONVERTER
GB9209373D0 (en) Load sensing handling system
EP0509735A3 (en) Load cell balance
GB2246864B (en) Load sensing arrangement
GB9218430D0 (en) Electronic wearaway sensor
GB2303450B (en) Detf load cell
GB2280751B (en) Multi-DETF load cell
GB9220655D0 (en) Load cell
GB9605626D0 (en) Load handling device
GB9203156D0 (en) Load handling
GB9317665D0 (en) Axle load sensor
GB9222440D0 (en) Load sensing arrangement
EP0709657A3 (en) Weighing sensor