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FR2208188A1 - - Google Patents

Info

Publication number
FR2208188A1
FR2208188A1 FR7340706A FR7340706A FR2208188A1 FR 2208188 A1 FR2208188 A1 FR 2208188A1 FR 7340706 A FR7340706 A FR 7340706A FR 7340706 A FR7340706 A FR 7340706A FR 2208188 A1 FR2208188 A1 FR 2208188A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7340706A
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 Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of FR2208188A1 publication Critical patent/FR2208188A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0023—Measuring currents or voltages from sources with high internal resistance by means of measuring circuits with high input impedance, e.g. OP-amplifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/022—Circuit arrangements, e.g. for generating deviation currents or voltages ; Components associated with high voltage supply

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Electron Tubes For Measurement (AREA)
FR7340706A 1972-11-29 1973-11-15 Withdrawn FR2208188A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00310471A US3832642A (en) 1972-11-29 1972-11-29 Current measuring circuit and method

Publications (1)

Publication Number Publication Date
FR2208188A1 true FR2208188A1 (fr) 1974-06-21

Family

ID=23202664

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7340706A Withdrawn FR2208188A1 (fr) 1972-11-29 1973-11-15

Country Status (4)

Country Link
US (1) US3832642A (fr)
DE (1) DE2358818A1 (fr)
FR (1) FR2208188A1 (fr)
GB (1) GB1422680A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935532A (en) * 1974-12-16 1976-01-27 Xerox Corporation Automatic zeroing electrometer
US4751455A (en) * 1985-12-04 1988-06-14 Analog Devices, Inc. Low frequency noise measurement system using sliding pole for fast settling
US5572118A (en) * 1995-06-29 1996-11-05 Mks Instruments, Inc. Charge rate electrometer including means for substantially eliminating leakage currents
US5712480A (en) * 1995-11-16 1998-01-27 Leco Corporation Time-of-flight data acquisition system
US7501621B2 (en) * 2006-07-12 2009-03-10 Leco Corporation Data acquisition system for a spectrometer using an adaptive threshold
CN102347198B (zh) * 2010-08-04 2014-05-21 江苏天瑞仪器股份有限公司 质谱仪中灯丝发射电流稳定控制电路
CN111443268A (zh) * 2020-05-20 2020-07-24 南京工程学院 一种基于超高频电磁波的电力系统污闪检测电路
CN121164706A (zh) * 2025-11-21 2025-12-19 成都睿宝电子科技有限公司 一种用于四极杆质谱仪的电流测量电路及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131349A (en) * 1954-02-23 1964-04-28 Applied Physics Corp Spectrophotometer pulse amplitude ratio measuring means with feedback amplifier for noise and drift compensation
US3321628A (en) * 1964-09-18 1967-05-23 James E Webb Baseline stabilization system for ionization detector
US3390302A (en) * 1965-10-23 1968-06-25 Hewlett Packard Co Display stabilizer

Also Published As

Publication number Publication date
US3832642A (en) 1974-08-27
DE2358818A1 (de) 1974-05-30
GB1422680A (en) 1976-01-28

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Legal Events

Date Code Title Description
ST Notification of lapse