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Title: US4263653: Digital RF wattmeter
[ Derwent Title ]


Country: US United States of America

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20 pages

 
Inventor: Mecklenburg, Frank H.; Russell, OH

Assignee: Bird Electronic Corporation, Solon, OH
other patents from BIRD ELECTRONIC CORPORATION (66570) (approx. 18)
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Published / Filed: 1981-04-21 / 1979-06-04

Application Number: US1979000045329

IPC Code: Advanced: G01R 21/01; G01R 21/133; G01R 27/06;
Core: G01R 21/00; G01R 27/04;
IPC-7: G01R 21/00;
G01R 27/06;

ECLA Code: G01R21/01; G01R21/133; G01R27/06;

U.S. Class: Current: 702/060; 324/095; 324/607; 324/646;
Original: 364/483; 324/058.B; 324/095;

Field of Search: 364/481,483 324/58 A,58 B,58 R,95 325/067,133,363 445/115,226,67

Priority Number:
1979-06-04  US1979000045329

Abstract:     An electronic instrument is disclosed for measuring directional RF power levels and power function levels on a coaxial transmission line. The instrument includes an inductive sensing loop for sensing the RF voltage level on the transmission line and producing a voltage level proportional thereto. An analog-to-digital conversion means is connected to the sensing loop for converting the voltage level from the sensing loop to binary voltage data. A microcomputer means is associated with the conversion means for performing arithmetic operations upon the binary voltage data to calculate power data and power function data. Means connected to the microcomputer means are also provided for displaying the calculated power data and power function data. The instrument provides a direct readout in digital form of RF power data and data for various power and voltage functions such as VSWR.

Attorney, Agent or Firm: Pearne, Gordon, Sessions, McCoy & Granger ;

Primary / Asst. Examiners: Atkinson, Charles E.; Chin, Gary

Family: None

First Claim:
Show all 22 claims
What is claimed is:     1. An electronic instrument for measuring directional RF power levels and power function levels on a coaxial transmission line, said instrument adapted to be inserted in the line, the instrument comprising:
  • an inductive sensing loop for sensing the RF voltage level on the transmission line and producing a voltage level proportional thereto;
  • means connected to the sensing loop for detecting the peak envelope voltage wave level on the transmission line;
  • means connected to the sensing loop for detecting the valley envelope voltage wave level on the transmission line;
  • an analog-to-digital conversion means connected to the sensing loop and the peak envelope detecting means and the valley envelope detecting means for converting the voltage levels from the sensing loop and from the peak envelope detecting means and from the valley envelope detecting means to binary voltage data;
  • microcomputer means associated with the conversion means for performing arithmetic operations upon the binary voltage data to calculate power data and power function data, the microcomputer means including means for calculating the carrier wave power from both the peak envelope voltage data and the valley envelope voltage data; and
  • means connected to the microcomputer means for displaying the power date and the power function data calculated by the microcomputer means.


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Forward References: Show 20 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (20)   |   Backward references (7)   |   Citation Link

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PDF
Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 10pp US3796948  1974-03 Wentworth  Westinghouse Electric Corporation STANDING WAVE DETECTOR
Get PDF - 7pp US3835379  1974-10 Templin  Hughes Aircraft Company DETECTOR CIRCUITS FOR SIGNAL TRANSMISSION
Get PDF - 6pp US4041395  1977-08 Hill  Integral Engineering & Manufacturing Corporation Transmitter performance monitor and antenna matching system
Get PDF - 8pp US4048564  1977-09 Gleeson, Jr.   Transceiver test device
Get PDF - 9pp US4070619  1978-01 Trefney  Bird Electronic Corporation Microstrip configuration with inductive pickup loop for VSWR meter
Get PDF - 7pp US4075554  1978-02 Mecklenburg  Bird Electronic Corporation VSWR meter circuit using variable RF attenuator
Get PDF - 7pp US4110685  1978-08 Leenerts   Standing wave ratio measurement instrument
       
Foreign References: None

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