GB1201255A - Improvements in and relating to devices for magnetic field measurements - Google Patents

Improvements in and relating to devices for magnetic field measurements

Info

Publication number
GB1201255A
GB1201255A GB1179169A GB1179169A GB1201255A GB 1201255 A GB1201255 A GB 1201255A GB 1179169 A GB1179169 A GB 1179169A GB 1179169 A GB1179169 A GB 1179169A GB 1201255 A GB1201255 A GB 1201255A
Authority
GB
United Kingdom
Prior art keywords
hall plate
magnetic field
march
relating
devices
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
GB1179169A
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.)
Varian Mat GmbH
Original Assignee
Varian Mat GmbH
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
Priority claimed from DE19681616456 external-priority patent/DE1616456A1/en
Application filed by Varian Mat GmbH filed Critical Varian Mat GmbH
Publication of GB1201255A publication Critical patent/GB1201255A/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
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/07—Hall effect devices

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

1,201,255. Measuring magnetic fields. VARIAN MAT G.m.b.H. March 5, 1969 [March 13, 1968], No.11791/69. Heading G1N. A Hall plate magnetometer for measuring magnetic field strengths in sectoral field mass spectrometers is provided with thermal stabilization and a device for controlling the control current (i H ) in dependence on the temperature (t H ) of the Hall plate 1 in such a manner that the output voltage (U H ) is independent of the Hall plate temperature. As shown, the thermal stabilization system 6 includes a cooling coil 4 and a temperature sensor 8. The same temperature sensor, or, as shown, a different one 10, supplies a t H signal to a control circuit 12 which also receives an i H signal from across a resistance 13 in the control current circuit. Adjustable resistor 20 enables the proportionality factor to be adjusted.
GB1179169A 1968-03-13 1969-03-05 Improvements in and relating to devices for magnetic field measurements Expired GB1201255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681616456 DE1616456A1 (en) 1968-03-13 1968-03-13 Device for measuring the magnetic field strength of magnetic fields, in particular mass spectrometers

Publications (1)

Publication Number Publication Date
GB1201255A true GB1201255A (en) 1970-08-05

Family

ID=5682194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1179169A Expired GB1201255A (en) 1968-03-13 1969-03-05 Improvements in and relating to devices for magnetic field measurements

Country Status (2)

Country Link
FR (1) FR2003800A1 (en)
GB (1) GB1201255A (en)

Also Published As

Publication number Publication date
FR2003800A1 (en) 1969-11-14

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees