Device for setting slit widths in the beam path of spectrometers

Details Device for setting slit widths in the beam path of spectrometers Device for setting slit widths in the beam path of spectrometers

1994-08-22

1995-09-19

Hannaher, Constantine

Radiant energy

Ionic separation or analysis

356330, 356331, 359232, 359233, 359227, H01J 4906, G01J 304, G02B 2602

Patent

active

054517800

ABSTRACT:
A slit is disposed as diaphragm in the beam path of a mass spectrometer. The slit width is to be variable in the simplest possible manner. Manual, electric motor-driven, thermoelectric or piezoelectric adjustment devices are known. According to the invention a pneumatic adjustment is provided. A Bourdon tube (12) moves a lever (14), at one end (18) of which slits (19, 20, 21) of differing slit widths are disposed. The lever movements are limited by abutments (22, 23).

REFERENCES:
patent: 2914987 (1959-12-01), Crosswhite
patent: 3209143 (1965-09-01), Hickam
patent: 3346737 (1967-10-01), Neuhaus
patent: 3469094 (1969-09-01), Erickson
patent: 3643435 (1972-02-01), Klee
patent: 3655963 (1972-03-01), Brunnee
patent: 4213051 (1980-07-01), Struthoff
patent: 4240298 (1980-12-01), Wetterhorn
patent: 4612440 (1986-09-01), Brunnee
German Search Report, 03 Feb. 1994.

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