Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Parameter related to the reproduction or fidelity of a...
Patent
1988-08-31
1990-12-11
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Parameter related to the reproduction or fidelity of a...
324605, 324620, 324628, 324637, 324 79R, 455295, 455315, G01R 2926
Patent
active
049773763
ABSTRACT:
For the reduction of noise signals, and particularly crosstalk signals, in measurement systems for analyzing emission or transmission processes and composed of a serial arrangement of a signal source (1), a measurement path (2) with or without a transmission test object (8), a detector (3), and a measurement and display circuit (5), an identification modulation is imparted to the signal component carried in the measurement path by means of repeated modulation (6, 9). The evaluation of the detector output signal may be performed with respect to a frequency which is free of the effects of the single modulation signals occurring in the detector output signal because of noise pick-up. Use of this method in homodyne systems for quadrupole parameter measurements further eliminates the effects of crosstalk reflections which typically occur in these systems. A considerable increase in the sensitivity of the measurement in, for example, microwave gas spectroscopy, correlation radiometry and quadrupole measurement procedures can be achieved. Effective noise supporession can be obtained even with the use of only two modulators.
REFERENCES:
patent: 2812492 (1957-10-01), Pfleger
patent: 3041532 (1962-06-01), Bidlingmailer et al.
patent: 3227949 (1966-01-01), Oberbeck
patent: 3411079 (1968-11-01), Palatinus
patent: 4313216 (1082-01-01), Jaeger et al.
Reinschlussel, Reinhard: Ein Gasspektrometer hoher Nachweisempfindlechkeit im Millimeterwellenbereigh [Gas Spectrometer with High Detection Sensitivity in the Millimeter Wave Range]; Dissertation, Bochum 1985.
Spaude, Manfred: Ein impedanzunabhangiges Messverfahen zur Bestimmung von Zweipol-Rauschtemperaturen im Hochfrequenzbereich [A Measuring Method Independent of Impedance for the Determination of Bipolar Noise Temperatures in the High Frequency Range]; Dissertation, Bochum 1984, p. 17, FIG. 2.5.
Dalichau, H.: Hochfrequenzmesstechnik [High Frequency Measuring Technology] in Meinke-Gundlach, "Taschenbuch der Hochfrequenztechnik", [High Frequency Technology Handbook], vol. 1, publ. by K. Lange and K. -H. Locherer, Heidelberg: Springer 1986, FIG. 7.
King, R. J.: Microwave Homodyne Systems, Peter Peregrinus Ltd., Southgate House, Stevenage, England 1978, pp. 5-6, 38-40.
Schiek, Burkhard: Mestrasse-Systeme der Hochfrequenztechnik [Measurement Systems for Radio-Frequency Technology] Heidelberg, Huthig, 1984, p. 133, FIG. 4.9.
Groll, Horst: Microwellenme Technik [Microwave Measurement Technology], Braunschweig, Vieweg, 1969, p. 240.
Schiek Burkhard
Uwe Gartner F.
Eisenzopf Reinhard J.
Laboratorium Prof. Dr. Rudolf Berthold
Mueller Robert W.
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