Accession Number : ADA313835

Title :   Power Measurement System for 1 mW at 1 GHz,

Corporate Author : NATIONAL INST OF STANDARDS AND TECHNOLOGY BOULDER CO ELECTROMAGNETIC FIELDS D IV

Personal Author(s) : Clague, Fred R.

PDF Url : ADA313835

Report Date : NOV 1990

Pagination or Media Count : 30

Abstract : An automated measurement system designed to measure power accurately at the level of 1 mW and at the frequency of 1 GHz is described. The system consists of commercial IEEE Std-488 bus-controlled instruments, a computer controller, and software. The results of a series of measurements are output to the computer display and, optionally, to a printer. The results are the mean of the measurement series and an estimate of the systematic and random uncertainty. The total estimated uncertainty for the average of six consecutive measurements of a nominal 1 mW, 1 GHz source is typically less than 1 percent. The system can measure any power from 0.1 to 10 mW at any microwave frequency by making appropriate changes to the software and possibly, the hardware.

Descriptors :   *POWER MEASUREMENT, SOFTWARE ENGINEERING, UNCERTAINTY, SYSTEMS ENGINEERING, AUTOMATION, VOLTAGE, MICROWAVES, MICROWAVE EQUIPMENT, THERMISTORS, ERROR ANALYSIS, COMPUTER APPLICATIONS, SYSTEMS ANALYSIS, DATA DISPLAYS, DIRECT CURRENT, VOLTMETERS.

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE