CA1082366A - Method and apparatus for determining weight and mass - Google Patents
Method and apparatus for determining weight and massInfo
- 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
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)
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 (US06277897-20010821-C00009.png) |
CA (1) | CA1082366A (US06277897-20010821-C00009.png) |
DE (1) | DE2721793A1 (US06277897-20010821-C00009.png) |
GB (1) | GB1561999A (US06277897-20010821-C00009.png) |
Families Citing this family (16)
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)
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 |
-
1976
- 1976-05-14 US US05/686,475 patent/US4050530A/en not_active Expired - Lifetime
-
1977
- 1977-04-14 CA CA276,200A patent/CA1082366A/en not_active Expired
- 1977-05-11 GB GB19811/77A patent/GB1561999A/en not_active Expired
- 1977-05-13 DE DE19772721793 patent/DE2721793A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2721793C2 (US06277897-20010821-C00009.png) | 1987-04-23 |
DE2721793A1 (de) | 1977-12-01 |
US4050530A (en) | 1977-09-27 |
GB1561999A (en) | 1980-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |