GB1056688A - Gyromagnetic resonance spectrometer - Google Patents
Gyromagnetic resonance spectrometerInfo
- Publication number
- GB1056688A GB1056688A GB4598564A GB4598564A GB1056688A GB 1056688 A GB1056688 A GB 1056688A GB 4598564 A GB4598564 A GB 4598564A GB 4598564 A GB4598564 A GB 4598564A GB 1056688 A GB1056688 A GB 1056688A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- frequency
- detector
- phase
- loop
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/60—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using electron paramagnetic resonance
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
1,056,688. Gyromagnectic spectrometers. VARIAN ASSOCIATES. Nov. 11, 1964 [Nov. 12, 1963], No.45985/64. Heading G1N. In a gyromagnetic resonance spectrometer, a resonance signal from a sample cavity 12 is mixed with a reference signal in a mixer 22 so as to produce at crystal detectors 28, 30 two signals which differ in phase by 90 degrees. In the mixer, Figs. 3 and 4 (not shown), the resonance signal is split by a 10db coupler 19 between waveguide sections 18, 20 and the reference signal is split by a 3db coupler 25 between waveguide sections 24, 26. Section 26 contains a 90 degrees phase shifter 66. The spectrometer incorporates an A. F. C. loop to lock the frequency of klystron 10 to the resonant frequency of the sample cavity. A sweep generator 54 sweeps the frequency of the klystron through the resonant frequency of the cavity and an A. F. C. phase-sensitive detector 58 forms a D. C. error signal if the centre frequency of the klystron output differs from the resonant frequency of the cavity. The A. F. C. loop should have negligible gain at the frequency of the field modulation sweep generator 36. For absorption mode detection, gauged switch 46 is set at position A thereby connecting crystal detector 28 via amplifier 48 to a phase-sensitive detector 52 and also to the A. F. C. loop. For dispersion mode detection, switch 46 is set first at position B while phase shifter 44 is adjusted to obtain a symmetrical mode sweep signal on oscilloscope 50, Fig. 5 (not shown), and then at position C where a band-rejection filter 62 passes all but the A. F. C. signal from detector 28 and a band-pass filter 60 rejects all but the A. F. C. signal from detector 30.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32304163A | 1963-11-12 | 1963-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1056688A true GB1056688A (en) | 1967-01-25 |
Family
ID=23257522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4598564A Expired GB1056688A (en) | 1963-11-12 | 1964-11-11 | Gyromagnetic resonance spectrometer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS4813075B1 (en) |
| DE (1) | DE1523112C3 (en) |
| GB (1) | GB1056688A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540733A1 (en) * | 1991-05-23 | 1993-05-12 | MARSHALL, Joseph W. | Portable dedicated electron spin resonance spectrometer |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5513745Y2 (en) * | 1973-12-27 | 1980-03-27 | ||
| JPS5725580Y2 (en) * | 1975-09-19 | 1982-06-03 | ||
| JPS5835027B2 (en) * | 1975-10-23 | 1983-07-30 | 株式会社日立製作所 | ``Shiyuhasuuhatsudenki'' |
| JPS61277354A (en) * | 1985-05-31 | 1986-12-08 | Sony Corp | Flat type motor with frequency generator |
| JPH03117355A (en) * | 1989-01-27 | 1991-05-20 | Hitachi Ltd | Motor with frequency generator |
-
1964
- 1964-10-27 DE DE19641523112 patent/DE1523112C3/en not_active Expired
- 1964-10-28 JP JP6075064A patent/JPS4813075B1/ja active Pending
- 1964-11-11 GB GB4598564A patent/GB1056688A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540733A1 (en) * | 1991-05-23 | 1993-05-12 | MARSHALL, Joseph W. | Portable dedicated electron spin resonance spectrometer |
| EP0540733A4 (en) * | 1991-05-23 | 1994-06-01 | Barney Bales | Portable dedicated electron spin resonance spectrometer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4813075B1 (en) | 1973-04-25 |
| DE1523112C3 (en) | 1975-04-17 |
| DE1523112B2 (en) | 1974-08-01 |
| DE1523112A1 (en) | 1969-06-19 |
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