JPS57200866A - Moving coil type measuring instrument - Google Patents
Moving coil type measuring instrumentInfo
- Publication number
- JPS57200866A JPS57200866A JP8576381A JP8576381A JPS57200866A JP S57200866 A JPS57200866 A JP S57200866A JP 8576381 A JP8576381 A JP 8576381A JP 8576381 A JP8576381 A JP 8576381A JP S57200866 A JPS57200866 A JP S57200866A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic path
- toroidal
- gap
- plates
- moving coil
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
- G01R5/02—Moving-coil instruments
- G01R5/08—Moving-coil instruments specially adapted for wide angle deflection; with eccentrically-pivoted moving coil
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
PURPOSE:To enable strengthening of a drive turning power and to reduce the number of components and the number of processing works, by a method wherein a toroidal magnetic path plate is split, a toroidal core is placed on a surface where the split magnetic path plates are positioned facing and opposite to each other, and two magnetic circuits are formed in parallel. CONSTITUTION:Toroidal magnetic path plates 1', a part of which is opened, are placed at an upper and a lower side, and toroidal permanent magnets 2' are secured to the surfaces of the plates 1' positioned facing and opposite to each other. A toroidal core 3', whose one end is open, is located at a center of a space between the permanent magnets 2' and at a distance of a gap B between the core and the magnet, and forms a magnetic path together with a magnetic path segment 4'. A magnetic circuit forms two parallel circuits through the gap B, and electromagnetic powers, acting on two horizontal surface of a moving coil 6 in the upper and the lower gap B, are added to each other to obtain a strengthened drive turn power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8576381A JPS57200866A (en) | 1981-06-05 | 1981-06-05 | Moving coil type measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8576381A JPS57200866A (en) | 1981-06-05 | 1981-06-05 | Moving coil type measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57200866A true JPS57200866A (en) | 1982-12-09 |
Family
ID=13867900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8576381A Pending JPS57200866A (en) | 1981-06-05 | 1981-06-05 | Moving coil type measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57200866A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995024653A1 (en) * | 1994-03-10 | 1995-09-14 | Iskra Instrumenti Otoce, D.O.O. | Measuring instrument with eccentrically positioned coil |
| US7549739B2 (en) | 2004-09-07 | 2009-06-23 | Seiko Epson Corporation | Liquid droplet discharge apparatus, liquid supply device thereof, electro-optical device, and electronic apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4824470B1 (en) * | 1969-10-13 | 1973-07-21 | ||
| JPS4991679A (en) * | 1972-12-26 | 1974-09-02 |
-
1981
- 1981-06-05 JP JP8576381A patent/JPS57200866A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4824470B1 (en) * | 1969-10-13 | 1973-07-21 | ||
| JPS4991679A (en) * | 1972-12-26 | 1974-09-02 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995024653A1 (en) * | 1994-03-10 | 1995-09-14 | Iskra Instrumenti Otoce, D.O.O. | Measuring instrument with eccentrically positioned coil |
| US7549739B2 (en) | 2004-09-07 | 2009-06-23 | Seiko Epson Corporation | Liquid droplet discharge apparatus, liquid supply device thereof, electro-optical device, and electronic apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2476375B1 (en) | ||
| GB2109165A (en) | Trip solenoid | |
| JPS55118299A (en) | Low leakage magnetic flux type speaker | |
| JPS57200866A (en) | Moving coil type measuring instrument | |
| JPS57159025A (en) | Method and device for dry etching | |
| SE8804423L (en) | ELECTROMAGNETIC MOVER | |
| JPS579197A (en) | Speaker | |
| JPS56122107A (en) | Electromagnetic driving device | |
| JPS5796512A (en) | Inductor | |
| JPS56114307A (en) | Magnetic circuit | |
| JPS5710910A (en) | Electric pole type monostable electromagnet | |
| SU1265929A1 (en) | Rotor of electric machine with permanent magnets | |
| JPS5596795A (en) | Plane driving electroacoustic transducer | |
| SU1501179A1 (en) | Electric machine magnetic core | |
| JPS57113696A (en) | Forming method of magnetic gap in magnetic circuit | |
| JPS5799714A (en) | Polarized electromagnet | |
| JPS57102004A (en) | Polar electromagnet | |
| JPS5571397A (en) | Magnetic circuit for electric acoustic converter | |
| JPS57118611A (en) | Bistable electromagnet device | |
| JPS6429783A (en) | Manufacture of closed magnetic circuit | |
| JPS5784109A (en) | Polarized electromagnet | |
| JPS56127771A (en) | Magnetron sputtering electrode | |
| DE3377201D1 (en) | Electromagnet beam | |
| JPS5651807A (en) | Polarized electromagnet | |
| ES276478U (en) | Magnetic retainer (Machine-translation by Google Translate, not legally binding) |