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The Delphion
Integrated
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| Title: |
US4547728:
RF Wattmeter
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| Inventor(s): |
Mecklenburg; Frank H., Chagrin Falls, OH
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Applicant/Assignee : |
Bird Electronic Corporation, Solon, OH
other patents from BIRD ELECTRONIC CORPORATION (approx. 18)
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| Issued/Filed Dates: |
Oct. 15, 1985
/ Aug. 31, 1982
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| Application Number: |
US1982000413537
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| IPC Class: |
G01R 21/04;
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| Class: |
Current:
324/095;
324/099.R;
324/119;
Original:
324/095;
324/099.R;
324/119;
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| Field of Search: |
324/58 B,58 A,58 R,95,99 R,99 D,119,132
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| Priority Number(s): |
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| Legal Status: |
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| Abstract:  :
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An RF wattmeter is disclosed of the type using an "insertion-type" pick-up element to produce a voltage wave signal corresponding to the measured power in the coaxial transmission line. The induction loop in the pick-up element is connected to a principal detector, and a secondary detector is connected in opposition to the principal detector. Both detectors are located in close proximity to each other and are subject to the same thermal environment. A sine wave generator supplies a wave signal to the secondary detector in opposition to the wave signal supplied to the principal detector from the inductive loop. The d.c. portion of the resulting signal representing the difference between the opposed signals is integrated, and the integrated output is used as the amplitude in the generated sine wave. When the circuit is in balance, the integrated output matches the amplitude of the inductive wave form and can be used as an output indicating measured power in the coaxial transmission line.
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| Attorney, Agent, or Firm: |
Pearne, Gordon, Sessions, McCoy, Granger & Tilberry ;
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| Primary/Assistant Examiners: |
Levy; Stewart J.; Baker; S.
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| Forward References: |
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