GB857459A - A magnetic field intensity probe using a vibrating coil and a piezoelectric crystal connected therewith - Google Patents
A magnetic field intensity probe using a vibrating coil and a piezoelectric crystal connected therewithInfo
- Publication number
- GB857459A GB857459A GB2638457A GB2638457A GB857459A GB 857459 A GB857459 A GB 857459A GB 2638457 A GB2638457 A GB 2638457A GB 2638457 A GB2638457 A GB 2638457A GB 857459 A GB857459 A GB 857459A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic field
- field intensity
- connected therewith
- piezoelectric crystal
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/028—Electrodynamic magnetometers
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
857,459. Magnetic tests. TESLA NARODNI PODNIK. Aug. 21, 1957, No. 26384/57. Class 37 To measure the intensity of a magnetic field a coil 1 is fed with an alternating current so that it vibrates in the field. The vibrations are transmitted by a rod 2 mounted in rubber bearings 3 to a pilzo-electric crystal 4 the output voltage of which is a measure of field intensity. The A.C. supply frequency is chosen to be the same as the natural frequency of vibration of the assembly. In the partial construction shown in Fig. 2, coil 1 rod 2 mounted in elastic bearings 3 and the crystal 4 cemented to a carrier 5 are all mounted in a flat carrier 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2638457A GB857459A (en) | 1957-08-21 | 1957-08-21 | A magnetic field intensity probe using a vibrating coil and a piezoelectric crystal connected therewith |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2638457A GB857459A (en) | 1957-08-21 | 1957-08-21 | A magnetic field intensity probe using a vibrating coil and a piezoelectric crystal connected therewith |
Publications (1)
Publication Number | Publication Date |
---|---|
GB857459A true GB857459A (en) | 1960-12-29 |
Family
ID=10242793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2638457A Expired GB857459A (en) | 1957-08-21 | 1957-08-21 | A magnetic field intensity probe using a vibrating coil and a piezoelectric crystal connected therewith |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB857459A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3432748A (en) * | 1967-04-07 | 1969-03-11 | Us Army | Eddy current test apparatus utilizing a movable coil coupled to a piezoelectric element |
US4506221A (en) * | 1982-06-28 | 1985-03-19 | Sanders Associates, Inc. | Magnetic heading transducer having dual-axis magnetometer with electromagnet mounted to permit pivotal vibration thereof |
EP0246460A1 (en) * | 1986-05-05 | 1987-11-25 | Siemens Aktiengesellschaft | Process for the measurement of alternating electric or magnetic fields and arrangement for carrying out the process |
EP0389390A1 (en) * | 1989-03-21 | 1990-09-26 | Sextant Avionique S.A. | Micromagnetometer with flexible bar |
-
1957
- 1957-08-21 GB GB2638457A patent/GB857459A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3432748A (en) * | 1967-04-07 | 1969-03-11 | Us Army | Eddy current test apparatus utilizing a movable coil coupled to a piezoelectric element |
US4506221A (en) * | 1982-06-28 | 1985-03-19 | Sanders Associates, Inc. | Magnetic heading transducer having dual-axis magnetometer with electromagnet mounted to permit pivotal vibration thereof |
EP0246460A1 (en) * | 1986-05-05 | 1987-11-25 | Siemens Aktiengesellschaft | Process for the measurement of alternating electric or magnetic fields and arrangement for carrying out the process |
EP0389390A1 (en) * | 1989-03-21 | 1990-09-26 | Sextant Avionique S.A. | Micromagnetometer with flexible bar |
FR2644897A1 (en) * | 1989-03-21 | 1990-09-28 | Crouzet Sa | FLAME BEAM MICROMAGNETOMETER |
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