GB857001A - Improvements in or relating to mass spectrometers - Google Patents
Improvements in or relating to mass spectrometersInfo
- Publication number
- GB857001A GB857001A GB6031/57A GB603157A GB857001A GB 857001 A GB857001 A GB 857001A GB 6031/57 A GB6031/57 A GB 6031/57A GB 603157 A GB603157 A GB 603157A GB 857001 A GB857001 A GB 857001A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mass
- feb
- magnetic field
- mass peaks
- ratio
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
857,001. Mass spectrometers. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 22, 1957 [Feb. 27, 1956], No. 6031/57. Class 39(1). [Also in Groups XXXVI and XL(c)] In a mass spectrometer the ratio between the heights of two mass peaks is measured by interrupting the flow of ions in synchronism with the periodic change of the electric or magnetic field to select one or other of the mass peaks in order to generate at A output voltage pulses of square form. The highest voltage pulse is then attenuated in potentiometer 6 whose tapping is adjusted until the voltages stored in condensers 9, 10 are equal as indicated by voltmeter 11. The adjustment is then a measure of the ratio between the mass peaks. Synchronously operating switches are shown at a for the electron bombardment source, at b, for the electric or magnetic field and at d, e, f and g, and the circuit includes preliminary storage condensers 7, 8 and a frequency-and phase-selective amplifier 4. Other amplifiers are shown at 2 and 3, and an automatic noise correction circuit may be introduced for clamping point A to zero between pulses (see Group XL(c)).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL857001X | 1956-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB857001A true GB857001A (en) | 1960-12-21 |
Family
ID=19847282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6031/57A Expired GB857001A (en) | 1956-02-27 | 1957-02-22 | Improvements in or relating to mass spectrometers |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1254885B (en) |
| FR (1) | FR1172717A (en) |
| GB (1) | GB857001A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE511841A (en) * | 1951-04-18 |
-
1957
- 1957-02-22 GB GB6031/57A patent/GB857001A/en not_active Expired
- 1957-02-23 DE DEN13349A patent/DE1254885B/en active Pending
- 1957-02-27 FR FR1172717D patent/FR1172717A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1172717A (en) | 1959-02-13 |
| DE1254885B (en) | 1967-11-23 |
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