Title :
Design of frequency measurement system in external field
Author_Institution :
Unit 92493, PLA, Huludao, China
Abstract :
The paper proposes the design of frequency measurement system in external field. The system is designed to meet the mobility and integration for complex external field test. The system uses a method of continuous sampling for the frequency difference multiplication. The measurement resolution is improved by using double-balanced mixer to achieve mixing module, filter circuit, and so on. According to the GPIB interface characteristics, D7210C, 75160BN and 75161BN chip are used to complete the task that is bi-directional, asynchronous, accurate and reliable data communications between computer equipment and measuring instruments. The software is designed to complete automatic measurement of atomic frequency in external field. The system meets the test requirements through the data obtained in laboratory and external field. The uncertainty of the system has reached 4E-13.
Keywords :
computerised monitoring; data communication; frequency measurement; frequency multipliers; frequency standards; measurement uncertainty; mixers (circuits); peripheral interfaces; signal sampling; 75160BN chip; 75161BN chip; D7210C; GPIB interface characteristics; automatic atomic frequency measurement system design; complex external field test; computer equipment; continuous sampling; data communication reliability; double balanced mixer; filter circuit; frequency difference multiplication method; measurement uncertainty; measuring instrument; mixing module; software design; Circuit stability; Frequency measurement; Instruments; Mixers; Standards; Temperature measurement; Transmission line measurements; frequency difference multiplication; frequency mixing; stability;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2013 IEEE 11th International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-0757-1
DOI :
10.1109/ICEMI.2013.6743164
