GB727171A - Instrument for recording weights and modifications in weight - Google Patents
Instrument for recording weights and modifications in weightInfo
- Publication number
- GB727171A GB727171A GB27105/52A GB2710552A GB727171A GB 727171 A GB727171 A GB 727171A GB 27105/52 A GB27105/52 A GB 27105/52A GB 2710552 A GB2710552 A GB 2710552A GB 727171 A GB727171 A GB 727171A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- current
- weight
- core
- weighing
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
727,171. Electric weighing machines. EYRAUD, I., and EYRAUD, C. Oct. 28, 1952 [Nov. 5, 1951; Dec. 14, 1951], No. 27105/52. Class 40 (1). [Also in Group XL (b)] In a weighing-machine wherein the weight of a body 12 (Fig. 1) is balanced by the electromagnetic force exerted by a solenoid 7 energized by a current determined by a photo-cell 5 whose light input is controlled by a screen 2 attached to the weighing beam, the moving system is such that its centre of gravity is located on the fulcrum 19 by adjusting the position of a weight 20, so that equilibrium is fully determined by the current in coil 7 and is independent of the angular disposition of the beam. The current in'coil 7 is proportional to the weight of the body 12 and is measured across a series resistor 8. It may be augmented by a current proportional to its rate of change derived from the amplifying circuit (not shown) to provide damping. The coil 7 is preferably shaped so that the force on a core 18 is independent of the position of the core in the coil. The core 18 may alternatively be a coil fed with a constant current or with the same current as the main coil 7.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR727171X | 1951-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB727171A true GB727171A (en) | 1955-03-30 |
Family
ID=9111132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27105/52A Expired GB727171A (en) | 1951-11-05 | 1952-10-28 | Instrument for recording weights and modifications in weight |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB727171A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1075330B (en) * | 1960-02-11 | Scribbans-Kemp Limited, London | Electric scales | |
| CN110307886A (en) * | 2019-07-16 | 2019-10-08 | 深圳市杰曼科技股份有限公司 | A kind of big tare weight Weight detecting device and its detection method based on electromagnetic force |
| CN112748034A (en) * | 2019-10-31 | 2021-05-04 | 中国石油化工股份有限公司 | Device and method for quantitatively determining surface acidity of material |
-
1952
- 1952-10-28 GB GB27105/52A patent/GB727171A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1075330B (en) * | 1960-02-11 | Scribbans-Kemp Limited, London | Electric scales | |
| CN110307886A (en) * | 2019-07-16 | 2019-10-08 | 深圳市杰曼科技股份有限公司 | A kind of big tare weight Weight detecting device and its detection method based on electromagnetic force |
| CN112748034A (en) * | 2019-10-31 | 2021-05-04 | 中国石油化工股份有限公司 | Device and method for quantitatively determining surface acidity of material |
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