TRANSISTORIZED VOLTAGE CONTROLLED FM SUBCARRIER OSCILLATOR,
Abstract
A voltage-sensing, frequency-modulated, subcarrier oscillator was developed to measure both AC and DC voltages. The oscillator is used to provide a frequency-modulated subcarrier where the deviation is proportional to the amplitude of the input voltage. It is one of the basic elements required in the FM/FM telemetering system. Primary advantages of transistorizing the oscillator are to obtain a unit capable of withstanding high accelerations without degradation of electrical performance, and to substantially reduce power consumption. As of this time, six preliminary models have been built. Testing of these units indicates the design is practical, and relatively reproducible on a manufacturing basis. This report will include a discussion of the design problems encountered and their solutions and the general aspects of the circuit. An appendix is included for a detailed analysis of circuit operation, circuit and component considerations, and technical information required for duplicating the voltage controlled oscillator. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 24, 1958
- Accession Number
- AD0654389
Entities
People
- Adolph M. Chwastyk
Organizations
- Johns Hopkins University Applied Physics Laboratory