GB1167341A - Improvements in or relating to means for producing Electrical Marker Pulses in Mass Spectrometers - Google Patents

Improvements in or relating to means for producing Electrical Marker Pulses in Mass Spectrometers

Info

Publication number
GB1167341A
GB1167341A GB63966A GB63966A GB1167341A GB 1167341 A GB1167341 A GB 1167341A GB 63966 A GB63966 A GB 63966A GB 63966 A GB63966 A GB 63966A GB 1167341 A GB1167341 A GB 1167341A
Authority
GB
United Kingdom
Prior art keywords
potentiometer
calibration
pulse
signal
voltage
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
GB63966A
Inventor
Aubrey Edward Banner
Alfred James Monks
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB63966A priority Critical patent/GB1167341A/en
Priority claimed from GB5413666A external-priority patent/GB1216185A/en
Priority to FR90117A priority patent/FR1507546A/en
Priority to DE19671623626 priority patent/DE1623626A1/en
Publication of GB1167341A publication Critical patent/GB1167341A/en
Priority to US00020481A priority patent/US3803410A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/162—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division using galvano- magnetic effects, e.g. Hall effect; using similar magnetic effects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
    • G06G7/184—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements
    • G06G7/186—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements using an operational amplifier comprising a capacitor or a resistor in the feedback loop
    • G06G7/1865—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements using an operational amplifier comprising a capacitor or a resistor in the feedback loop with initial condition setting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/26—Mass spectrometers or separator tubes
    • H01J49/28—Static spectrometers
    • H01J49/32—Static spectrometers using double focusing
    • H01J49/326—Static spectrometers using double focusing with magnetic and electrostatic sectors of 90 degrees

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

1,167,341. Recording apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 29, 1966 [Jan. 6, 1966], No.639/66. Heading G1J. [Also in Divisions G4 and H3] In a recording system, for a mass spectrometer, calibration pulses are produced as a signal passes progressively through predetermined values by comparing the signal with a reference signal stepped to a future value of the input signal each time the input signal reaches a predetermined relationship with the reference signal, the comparator preferably utilizing a high gain differential amplifier with negative feedback. As shown, a swept voltage V M , proportional to the square of the swept flux in the mass spectrometer, is compared in an amplifier 63 with the amplified output of a constant resistance potentiometer 69, a level detecting amplifier 85 producing an output when the voltage V M and the reference voltage from the potentiometer reach a predetermined relationship. A pulse is produced at this time by blocks PS1 ... MS1 and fed to a cathode-ray tube or galvanometer recorder as a first calibration pulse indicative of particles of predetermined mass. Each pulse is also fed to a chain of bistable circuits BI1 ... BA1 which in turn selectively energize mercury wetted reed relays CA1 ... CI2 so as to change the setting of potentiometer 69 to a value corresponding to the next calibration point. Fine and coarse calibration markers may be provided by a transistor switching circuit feeding current to the galvanometer coil. The bi-stable chain is reset by closing switches RS and 73. Analogue calculating circuits for providing V M are described (See Division G4).
GB63966A 1966-01-06 1966-01-06 Improvements in or relating to means for producing Electrical Marker Pulses in Mass Spectrometers Expired GB1167341A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB63966A GB1167341A (en) 1966-01-06 1966-01-06 Improvements in or relating to means for producing Electrical Marker Pulses in Mass Spectrometers
FR90117A FR1507546A (en) 1966-01-06 1967-01-05 A device that produces pulses that serve as cues as a variable signal passes through particular values
DE19671623626 DE1623626A1 (en) 1966-01-06 1967-11-29 Integrator circuit, in particular for use in a mass spectrometer
US00020481A US3803410A (en) 1966-01-06 1970-03-26 Means for producing electrical marker pulses

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB63966A GB1167341A (en) 1966-01-06 1966-01-06 Improvements in or relating to means for producing Electrical Marker Pulses in Mass Spectrometers
GB5387766 1966-12-01
GB5413666A GB1216185A (en) 1966-12-02 1966-12-02 Improvements in analogue multipliers

Publications (1)

Publication Number Publication Date
GB1167341A true GB1167341A (en) 1969-10-15

Family

ID=27253748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB63966A Expired GB1167341A (en) 1966-01-06 1966-01-06 Improvements in or relating to means for producing Electrical Marker Pulses in Mass Spectrometers

Country Status (3)

Country Link
DE (1) DE1623626A1 (en)
FR (1) FR1507546A (en)
GB (1) GB1167341A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114446763A (en) * 2020-11-06 2022-05-06 塞莫费雪科学（不来梅）有限公司 Ion detector current converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114446763A (en) * 2020-11-06 2022-05-06 塞莫费雪科学（不来梅）有限公司 Ion detector current converter
CN114446763B (en) * 2020-11-06 2024-06-11 塞莫费雪科学（不来梅）有限公司 Ion detector current converter

Also Published As

Publication number Publication date
FR1507546A (en) 1967-12-29
DE1623626A1 (en) 1971-04-01

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Legal Events

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