Frequency Repeatability of Crystal Impedance Meter TS-683/TSM,
Abstract
Quartz crystal uits, operated within the 10- to 90-Mc frequency range, were subjected to repeated frequency measurements after simulating recalibra tion of Crystal Impedance Meter TS-683/TSM through readjustment of the oscillation amplitude level and test set frequency under calibration condi tions, i.e., with a resistor substituted for the crystal. Generally, it was found that the oscil lation frequency of plated AT resonators is critically dependent upon drive, the internal 0-150 microamperes meter cannot be used to adjust drive levels within accurate enough limits, and with a standardized procedure, frequency repeata bility of this type C.I. meter (except for fre quencies above 75 Mc) is better than one times ten to the minus seven power. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1963
- Accession Number
- AD0412404
Entities
People
- W. Bowerman
Organizations
- United States Army Communications-Electronics Command