FR2403548A1 - Balance electrique - Google Patents
Balance electriqueInfo
- Publication number
- FR2403548A1 FR2403548A1 FR7816551A FR7816551A FR2403548A1 FR 2403548 A1 FR2403548 A1 FR 2403548A1 FR 7816551 A FR7816551 A FR 7816551A FR 7816551 A FR7816551 A FR 7816551A FR 2403548 A1 FR2403548 A1 FR 2403548A1
- Authority
- FR
- France
- Prior art keywords
- current pulses
- tracking signals
- current
- digital
- error
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
- G01G7/02—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
- G01G7/04—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action with means for regulating the current to solenoids
- G01G7/045—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action with means for regulating the current to solenoids having a PID control system
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Analogue/Digital Conversion (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Feedback Control In General (AREA)
- Control Of Position Or Direction (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Electric Clocks (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Le comptage de la longueur d'impulsions de courant à l'aide de signaux de repérage dans le temps donne un résultat numérique de la pesée dans les balances à compensation électromagnétique de la charge et à courant de compensation prélevé par intermittence sur une source de courant constant. La sommation des signaux de repérage dans le temps pendant de multiples impulsions de courant provoque en raison de l'inertie du circuit électromagnétique de réglage une erreur de mise sous forme numérique due à la synchronisation de la coupure du courant avec le signal de repérage suivant. L'insertion, dans le circuit de réglage électromécanique, d'une boucle complémentaire de réglage qui shunte le support de charge et réagit donc beaucoup plus rapidement réduit fortement cette erreur. Application aux balances électriques de précision.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1146677A CH619779A5 (fr) | 1977-09-20 | 1977-09-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2403548A1 true FR2403548A1 (fr) | 1979-04-13 |
FR2403548B1 FR2403548B1 (fr) | 1983-07-08 |
Family
ID=4373765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7816551A Granted FR2403548A1 (fr) | 1977-09-20 | 1978-06-02 | Balance electrique |
Country Status (6)
Country | Link |
---|---|
US (1) | US4189017A (fr) |
JP (1) | JPS5829856B2 (fr) |
CH (1) | CH619779A5 (fr) |
DE (1) | DE2835133A1 (fr) |
FR (1) | FR2403548A1 (fr) |
GB (1) | GB1581980A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2561380A1 (fr) * | 1984-03-19 | 1985-09-20 | Sartorius Gmbh | Balance electrique a faible perte de puissance |
EP0411920A2 (fr) * | 1989-07-31 | 1991-02-06 | Shimadzu Corporation | Balance électronique |
EP0506444A2 (fr) * | 1991-03-27 | 1992-09-30 | Shimadzu Corporation | Balance électronique |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2805989C2 (de) * | 1978-02-13 | 1986-11-06 | Sartorius GmbH, 3400 Göttingen | Selbsttätige Steuerung für den Schaltmotor von elektromechanischen, selbsteinspielenden Waagen |
AU532664B2 (en) * | 1979-06-19 | 1983-10-06 | Kubota Ltd. | Electronic weigher |
US4365680A (en) * | 1979-06-25 | 1982-12-28 | Dietrich Gottstein | Force measuring device |
DE3213016A1 (de) * | 1982-04-07 | 1983-10-20 | Sartorius GmbH, 3400 Göttingen | Hochaufloesende elektronische waage |
US4580234A (en) * | 1982-08-02 | 1986-04-01 | Nippon Business Consultant Co., Ltd. | Measurement system of enhanced reliability |
CH660525B (fr) * | 1983-09-29 | 1987-04-30 | ||
CH665025A5 (de) * | 1984-06-29 | 1988-04-15 | Mettler Instrumente Ag | Elektromagnetisch kraftkompensierende waage sowie verfahren zum betrieb dieser waage. |
US5151648A (en) * | 1990-07-23 | 1992-09-29 | Philip Morris Inc. | Scintillation tube dynamic calibration monitor and feedback regulator |
US5266883A (en) * | 1992-08-04 | 1993-11-30 | Philip Morris Incorporated | Scintillation tube and ionization detector dynamic calibration monitor and feedback regulator |
EP2784454B1 (fr) * | 2013-03-28 | 2017-02-01 | Mettler-Toledo GmbH | Diagnostic de cellules de balances |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3786678A (en) * | 1971-04-05 | 1974-01-22 | Mettler Instrumente Ag | Force measuring apparatus including electromagnetic load compensation |
US3786884A (en) * | 1971-04-26 | 1974-01-22 | Mettler Instrumente Ag | Force-measuring apparatus including totalizer means |
US3816156A (en) * | 1972-07-28 | 1974-06-11 | A Baumann | Weighing apparatus including pulse counter means having a relatively small capacity |
DE2620825A1 (de) * | 1975-07-22 | 1977-02-10 | Mettler Instrumente Ag | Elektromagnetisch kompensierende waegevorrichtung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH529999A (de) * | 1971-09-22 | 1972-10-31 | Mettler Instrumente Ag | Waage |
CH578168A5 (fr) * | 1974-12-06 | 1976-07-30 | Mettler Instrumente Ag |
-
1977
- 1977-09-20 CH CH1146677A patent/CH619779A5/de not_active IP Right Cessation
-
1978
- 1978-05-25 GB GB22371/78A patent/GB1581980A/en not_active Expired
- 1978-06-02 FR FR7816551A patent/FR2403548A1/fr active Granted
- 1978-06-22 JP JP53076934A patent/JPS5829856B2/ja not_active Expired
- 1978-08-10 DE DE19782835133 patent/DE2835133A1/de active Granted
- 1978-08-29 US US05/937,720 patent/US4189017A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3786678A (en) * | 1971-04-05 | 1974-01-22 | Mettler Instrumente Ag | Force measuring apparatus including electromagnetic load compensation |
US3786884A (en) * | 1971-04-26 | 1974-01-22 | Mettler Instrumente Ag | Force-measuring apparatus including totalizer means |
US3816156A (en) * | 1972-07-28 | 1974-06-11 | A Baumann | Weighing apparatus including pulse counter means having a relatively small capacity |
DE2620825A1 (de) * | 1975-07-22 | 1977-02-10 | Mettler Instrumente Ag | Elektromagnetisch kompensierende waegevorrichtung |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2561380A1 (fr) * | 1984-03-19 | 1985-09-20 | Sartorius Gmbh | Balance electrique a faible perte de puissance |
EP0411920A2 (fr) * | 1989-07-31 | 1991-02-06 | Shimadzu Corporation | Balance électronique |
EP0411920A3 (en) * | 1989-07-31 | 1991-10-09 | Shimadzu Corporation | Electronic balance |
EP0506444A2 (fr) * | 1991-03-27 | 1992-09-30 | Shimadzu Corporation | Balance électronique |
EP0506444A3 (en) * | 1991-03-27 | 1993-04-21 | Shimadzu Corporation | Electronic balance |
Also Published As
Publication number | Publication date |
---|---|
DE2835133C2 (fr) | 1988-05-19 |
JPS5448277A (en) | 1979-04-16 |
JPS5829856B2 (ja) | 1983-06-25 |
GB1581980A (en) | 1980-12-31 |
US4189017A (en) | 1980-02-19 |
FR2403548B1 (fr) | 1983-07-08 |
CH619779A5 (fr) | 1980-10-15 |
DE2835133A1 (de) | 1979-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
ST | Notification of lapse |