CA1082366A - Method and apparatus for determining weight and mass - Google Patents

Method and apparatus for determining weight and mass

Info

Publication number
CA1082366A
CA1082366A CA276,200A CA276200A CA1082366A CA 1082366 A CA1082366 A CA 1082366A CA 276200 A CA276200 A CA 276200A CA 1082366 A CA1082366 A CA 1082366A
Authority
CA
Canada
Prior art keywords
mass
piezoelectric crystal
output
crystal means
voltage
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
CA276,200A
Other languages
English (en)
French (fr)
Inventor
Anthony Storace
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.)
Pitney Bowes Inc
Original Assignee
Pitney Bowes 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 Pitney Bowes Inc filed Critical Pitney Bowes Inc
Application granted granted Critical
Publication of CA1082366A publication Critical patent/CA1082366A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G9/00—Methods of, or apparatus for, the determination of weight, not provided for in groups G01G1/00 - G01G7/00

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Electric Ovens (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
CA276,200A 1976-05-14 1977-04-14 Method and apparatus for determining weight and mass Expired CA1082366A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/686,475 US4050530A (en) 1976-05-14 1976-05-14 Method and apparatus for determining weight and mass
US686,475 1976-05-14

Publications (1)

Publication Number Publication Date
CA1082366A true CA1082366A (en) 1980-07-22

Family

ID=24756445

Family Applications (1)

Application Number Title Priority Date Filing Date
CA276,200A Expired CA1082366A (en) 1976-05-14 1977-04-14 Method and apparatus for determining weight and mass

Country Status (4)

Country Link
US (1) US4050530A (US06256357-20010703-M00001.png)
CA (1) CA1082366A (US06256357-20010703-M00001.png)
DE (1) DE2721793A1 (US06256357-20010703-M00001.png)
GB (1) GB1561999A (US06256357-20010703-M00001.png)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3136959C2 (de) * 1981-09-17 1986-11-20 Mannesmann Kienzle GmbH, 7730 Villingen-Schwenningen Geberanordnung zur Messung des Ladegewichtes von Kraftfahrzeugen
US4765377A (en) * 1983-06-06 1988-08-23 Sidney Soloway Filling and weighing system
US4916391A (en) * 1984-11-15 1990-04-10 Doerman Eryk S LVDT displacement sensor with signal noise reduction for use in weighing apparatus
GB2174498B (en) * 1985-04-18 1989-04-19 Yamato Scale Co Ltd Mass meter
US4831527A (en) * 1986-08-11 1989-05-16 Clark Lloyd D Dynamic measuring system for determining the amount of excess body fat
US4778018A (en) * 1987-07-13 1988-10-18 Pitney Bowes Inc. Apparatus and method of determining the mass of an article by measuring the shift in the period of harmonic motion
US5362929A (en) * 1991-08-29 1994-11-08 Omron Corporation Weight sensor device
JPH0693899A (ja) * 1992-09-14 1994-04-05 Nissan Motor Co Ltd エンジンの蒸発燃料処理装置
US5654508A (en) * 1995-02-23 1997-08-05 Gibbs; John Harvey Method of determining a store's physical inventory
US5869763A (en) * 1995-10-19 1999-02-09 The United States Of America As Represented By The Secretary Of The Army Method for measuring mass change using a quartz crystal microbalance
IT1285457B1 (it) * 1996-02-19 1998-06-08 Azionaria Costruzioni Acma Spa Unita' riempitrice di contenitori con materiali in polvere
FR2758186B1 (fr) * 1997-01-09 1999-02-05 Snecma Procede non destructif pour estimer le vieillissement d'une piece en materiau composite
JP2000180250A (ja) * 1998-10-09 2000-06-30 Ngk Insulators Ltd 質量センサ及び質量検出方法
DE102007017305A1 (de) * 2007-04-11 2008-10-16 Genesis Adaptive Systeme Deutschland Gmbh Anordnung und Verfahren für einen stufenlosen Schalttaster für ein Gerät aller Art und Ausführung
US9551609B2 (en) * 2013-07-30 2017-01-24 The Boeing Company Modal acoustic aircraft weight system
DE102013224301A1 (de) * 2013-11-27 2015-05-28 Robert Bosch Gmbh Vorrichtung und Verfahren zur Bestimmung der Beladung eines Kraftstoffdampf-Zwischenspeichers einer Brennkraftmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB488921A (en) * 1936-10-15 1938-07-15 Robert Munro Electric micro-balance for weighing and other purposes
US2305783A (en) * 1938-02-14 1942-12-22 Heymann Hans Means for determining the weight of bodies
US3374844A (en) * 1965-10-22 1968-03-26 Railroad Machinery Dev Corp Apparatus and method for weighing railroad cars in motion
US3453870A (en) * 1966-03-21 1969-07-08 Itt Self-contained mass measurement system
US3595329A (en) * 1968-09-30 1971-07-27 Ronald Withnell Weighing apparatus with oscillation-comparison electrical transducer
US3967497A (en) * 1974-12-16 1976-07-06 Brown Horace D Vibrating force sensor
US3926271A (en) * 1975-02-03 1975-12-16 Rupprecht Georg Microbalance

Also Published As

Publication number Publication date
DE2721793C2 (US06256357-20010703-M00001.png) 1987-04-23
DE2721793A1 (de) 1977-12-01
US4050530A (en) 1977-09-27
GB1561999A (en) 1980-03-05

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