Accession Number : ADP009137

Title :   Frequency Standards from Industry Over the Next Twenty Five Years,

Corporate Author : HEWLETT-PACKARD CO PALO ALTO CA

Personal Author(s) : Cutler, Leonard S.

Report Date : 02 DEC 1993

Pagination or Media Count : 10

Abstract : Present and possible future performance for many of the existing and new commercial frequency standards is presented here. Recent progress in the gas cell atomic standards with regards to size and cost is significant and considerable improvement is expected. Cesium beam standards will benefit in stability and accuracy from optical pumping. Cooled hydrogen masers will offer extremely good stability. Advances in trapped ion and cesium fountain technologies make them good high performance candidates for the future. The quartz oscillator field is more mature and consequently performance improvements for the future are going to be Less spectacular. Oscillators stabilized to GPS will have many applications. Recent performance of cooled microwave dielectric resonator oscillators is very good and they offer the promise of serving as flywheel oscillators for advanced performance atomic standards.

Descriptors :   *FREQUENCY STANDARDS, *INDUSTRIAL RESEARCH, *TECHNOLOGY FORECASTING, CESIUM, COSTS, DIELECTRICS, FLYWHEELS, GAS CELLS, MASERS, MICROWAVES, OPTICAL PUMPING, OSCILLATORS, STABILITY, STANDARDS, PUMPING(ELECTRONICS), QUARTZ RESONATORS, GLOBAL POSITIONING SYSTEM.

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE