ZA928933B - Load cell - Google Patents

Load cell

Info

Publication number
ZA928933B
ZA928933B ZA928933A ZA928933A ZA928933B ZA 928933 B ZA928933 B ZA 928933B ZA 928933 A ZA928933 A ZA 928933A ZA 928933 A ZA928933 A ZA 928933A ZA 928933 B ZA928933 B ZA 928933B
Authority
ZA
South Africa
Prior art keywords
load cell
cell
load
Prior art date
Application number
ZA928933A
Other languages
English (en)
Inventor
Thomas H Johnson
Original Assignee
Weigh Tronix
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 Tronix filed Critical Weigh Tronix
Publication of ZA928933B publication Critical patent/ZA928933B/xx

Links

Classifications

    • 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
    • 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
    • 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
    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • 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
    • 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
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0005—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in capacitance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
    • G01L9/0022—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Measurement Of Force In General (AREA)
ZA928933A 1992-04-03 1992-11-19 Load cell ZA928933B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/863,162 US5313023A (en) 1992-04-03 1992-04-03 Load cell

Publications (1)

Publication Number Publication Date
ZA928933B true ZA928933B (en) 1994-05-19

Family

ID=25340424

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA928933A ZA928933B (en) 1992-04-03 1992-11-19 Load cell

Country Status (13)

Country Link
US (1) US5313023A (ru)
EP (1) EP0634003B1 (ru)
JP (1) JP2695291B2 (ru)
KR (1) KR100235129B1 (ru)
CN (1) CN1054432C (ru)
AU (1) AU2777492A (ru)
CA (1) CA2133456C (ru)
DE (1) DE69212847T2 (ru)
MX (1) MX9301932A (ru)
PT (1) PT101129A (ru)
TW (1) TW234740B (ru)
WO (1) WO1993020413A1 (ru)
ZA (1) ZA928933B (ru)

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PT101129A (pt) 1994-06-30
CN1077024A (zh) 1993-10-06
CA2133456A1 (en) 1993-10-14
JPH07505472A (ja) 1995-06-15
MX9301932A (es) 1994-08-31
KR950701068A (ko) 1995-02-20
KR100235129B1 (ko) 1999-12-15
EP0634003B1 (en) 1996-08-14
CN1054432C (zh) 2000-07-12
JP2695291B2 (ja) 1997-12-24
DE69212847T2 (de) 1996-12-19
TW234740B (ru) 1994-11-21
AU2777492A (en) 1993-11-08
DE69212847D1 (de) 1996-09-19
WO1993020413A1 (en) 1993-10-14
US5313023A (en) 1994-05-17
CA2133456C (en) 1999-12-14
EP0634003A1 (en) 1995-01-18

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