DE833863C - mass spectrometry - Google Patents

mass spectrometry

Info

Publication number
DE833863C
DE833863C DEP10898D DEP0010898D DE833863C DE 833863 C DE833863 C DE 833863C DE P10898 D DEP10898 D DE P10898D DE P0010898 D DEP0010898 D DE P0010898D DE 833863 C DE833863 C DE 833863C
Authority
DE
Germany
Prior art keywords
current
fine
mass spectrometer
mass spectrometry
help
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
DEP10898D
Other languages
German (de)
Inventor
Dr Ludolph Jenckel
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.)
Atlas Werke AG
Original Assignee
Atlas Werke AG
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 Atlas Werke AG filed Critical Atlas Werke AG
Priority to DEP10898D priority Critical patent/DE833863C/en
Application granted granted Critical
Publication of DE833863C publication Critical patent/DE833863C/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
    • H01J49/20—Magnetic deflection

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electron Tubes For Measurement (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Description

Bei 1 assenspektrometern, die mit einem Elektroinagneten und Regulierung des Magnetstromes arbeiten, ist es zum genauen Ausmessen einer Massenspitze erforderlich, eine Feinregulierung des .\lagnetstromes durchführen zu können, die mit Hilfe eines besonderen empfindlichen Strommessers überwacht werden kann und von der Gesamtstromstärke nur insofern abhängt, als sie um so feiner :ein soll, je höher die Gesamtstromstärke ist, entsprechend der Abhängigkeit -m proportional i.2 (i" = Magnetstrom).In the case of 1 spectrometers, the one with an electromagnet and regulation working of the magnet current, it is necessary to precisely measure a mass peak, to be able to carry out a fine adjustment of the. \ solenoid current, which with the help of a special sensitive ammeter can be monitored and of the total amperage depends only insofar as it is all the more finely: a should, the higher the total amperage is, according to the dependency -m proportional to i.2 (i "= solenoid current).

Dafür kommen zwei Schaltmöglichkeiten in Betracht: a) Das Magnetfeld- des Magneten -a wird mit Hilfe einer Hilfswicklung c zusätzlich zur Hauptwicklung h verändert (vgl. Fig. i). Die regelbare Stromstärke durch diese Wicklung kann dabei durch eiitsprechend@e Vorwiderstände f, ä mit der Einstellung des Regelwiderstandes d im Hauptstromkreis gekoppelt werden, was durch die Linie h in der Fig. i angedeutet ist. Der Nachteil dieser :Anordnung ist der, daß die Gewinnung einer linearen 1-Iassenskala am Strommeßinstrument besondere Maßnahmen erfordert.There are two possible switching options: a) The magnetic field of the magnet -a becomes with the help of an auxiliary winding c in addition to the main winding h changed (see. Fig. i). The adjustable current through this winding can be by corresponding series resistors f, ä with the setting of the rheostat d are coupled in the main circuit, which is indicated by the line h in FIG is. The disadvantage of this: arrangement is that the production of a linear 1-Iassenscale requires special measures on the current measuring instrument.

l>) Der Magnetstrom der Spule m wird bei Beobachtung des Strommeßgerätes i (4i) mit Hilfe eines hochohmigen Stromkreises f, n. der dem Hauptstromkreis parallel geschaltet ist, feingeregelt (vgl. Fig. 2). Diese Schaltung hat den Vorteil besonderer Einfachheit und die günstige Eigenschaft, daß der Feinnegelbereich automatisch um sokleiner wird, je größer der Gesamtstrom ist, und daß ohne Schwierigkeit die Massen an einem quadratisch anzeigenden Instrument k iin Gesamtstromkreis linear ablesbar sind.l>) The magnetic current of the coil m is observed when the ammeter i (4i) with the help of a high-resistance circuit f, n. which is parallel to the main circuit is switched, finely regulated (see. Fig. 2). This circuit has the advantage of special Simplicity and the favorable property that the fine level range automatically changes the greater the total current, the smaller the size, and that without difficulty the masses Can be read linearly on an instrument with a square display in the entire circuit are.

Claims (3)

YATENTANSPr:i'CtiE.: i. Massenspektronieter, dadurch gekennzeichnet, daß das 1-lagnetfeld zur Feinregelung mit einer Hilfswicklung (c) zusätzlich verändert wird. YATENTANSPR: i'CtiE .: i. Mass spectrometer, characterized in that that the 1 magnetic field for fine control is also changed with an auxiliary winding (c) will. 2. Massenspektrometer, dadurch gekennzeichnet, daß der Magnetstrom mit Hilfe eines hochcihmigen Stromkreises feingeregelt wird, der dem Hauptstromkreis parallel geschaltet ist. 2. mass spectrometer, characterized in that the magnetic current with the help a high-impedance circuit is fine-tuned, which is parallel to the main circuit is switched. 3. Massenspektrometer nach Anspruch 2, dadurch gekennzeichnet, daß der Regelbereich des Feinreglers um so kleiner wird, je größer der gesamte Magnetstrom wird.3. Mass spectrometer according to claim 2, characterized in that the control range of the fine controller becomes smaller, the greater the total solenoid current will.
DEP10898D 1948-10-02 1948-10-02 mass spectrometry Expired DE833863C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP10898D DE833863C (en) 1948-10-02 1948-10-02 mass spectrometry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP10898D DE833863C (en) 1948-10-02 1948-10-02 mass spectrometry

Publications (1)

Publication Number Publication Date
DE833863C true DE833863C (en) 1952-03-13

Family

ID=7363191

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP10898D Expired DE833863C (en) 1948-10-02 1948-10-02 mass spectrometry

Country Status (1)

Country Link
DE (1) DE833863C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218758B (en) * 1956-05-30 1966-06-08 Commissariat Energie Atomique Mass spectrometer for separating ionized particles
DE1221035B (en) * 1956-09-28 1966-07-14 Siemens Ag Electrical measuring device, which is based on the detection of changes in the electrical properties that a semiconductor body experiences under the action of a magnetic field, for determining the mass number in magnetic mass spectrometers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218758B (en) * 1956-05-30 1966-06-08 Commissariat Energie Atomique Mass spectrometer for separating ionized particles
DE1221035B (en) * 1956-09-28 1966-07-14 Siemens Ag Electrical measuring device, which is based on the detection of changes in the electrical properties that a semiconductor body experiences under the action of a magnetic field, for determining the mass number in magnetic mass spectrometers

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