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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 therewith

Info

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
Application number
GB2638457A
Inventor
Jaroslav Hrabak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tesla AS
Original Assignee
Tesla AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tesla AS filed Critical Tesla AS
Priority to GB2638457A priority Critical patent/GB857459A/en
Publication of GB857459A publication Critical patent/GB857459A/en
Expired legal-status Critical Current

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.
GB2638457A 1957-08-21 1957-08-21 A magnetic field intensity probe using a vibrating coil and a piezoelectric crystal connected therewith Expired GB857459A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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