GB864509A - Improvements in or relating to precision balances - Google Patents
Improvements in or relating to precision balancesInfo
- Publication number
- GB864509A GB864509A GB23980/59A GB2398059A GB864509A GB 864509 A GB864509 A GB 864509A GB 23980/59 A GB23980/59 A GB 23980/59A GB 2398059 A GB2398059 A GB 2398059A GB 864509 A GB864509 A GB 864509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oscillator
- coils
- magnetic
- conducting
- mettler
- 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
Abstract
864,509. Electrical measuring - devices. METTLER, E., [trading as METTLER, FABRIK FUR ANALYSENWAAGEN, E.]. July 13, 1959 [April 4, 1959], No. 23980/59. Class 40 (1). In a precision balance the magnetic coupling between a pair of coils is varied by inserting a conducting screen into the magnetic circuit in order to indicate the deflections of the balance beam. Each coil is wound on a U-shaped yoke, 4 and 5, Fig. 1, of powdered ferromagnetic material stuck to a conducting base-plate 3 by a synthetic resin. Conducting non-magnetic screen 11 attached to the balance beam moves freely between pole-pieces 4<SP>11</SP> and 5<SP>11</SP>, the magnetic field being confined to the gap between these pole-pieces by screens 13 and 14 and cover 20. The coupling between the coils may be measured by connecting one coil to an oscillator and the other to a valve voltmeter via coaxial cables 9 and 10, or alternatively the coils may be connected, either in series opposition or series aiding, in the frequency determining circuit of an oscillator so that the frequency of the oscillator is a measure of the position of lug 11.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH864509X | 1959-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB864509A true GB864509A (en) | 1961-04-06 |
Family
ID=4543494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23980/59A Expired GB864509A (en) | 1959-04-04 | 1959-07-13 | Improvements in or relating to precision balances |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB864509A (en) |
-
1959
- 1959-07-13 GB GB23980/59A patent/GB864509A/en not_active Expired
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