Accession Number:

ADA099737

Title:

Solid State Electronics for an Automatic Self-Balancing Capsule Manometer,

Descriptive Note:

Corporate Author:

AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)

Report Date:

1979-06-01

Pagination or Media Count:

37.0

Abstract:

Modern solid state electronics for use with Midwood and Hayward automatic manometers are described. Essentially the motor transmitter unit is replaced with CMOS shift registers which generate the waveforms needed to drive the repeater motors and also provide the necessary memory. By powering the shift registers from dry cells when power is off, a memory of about a year is provided since the current drawn is so small. The rest of the circuitry uses an amplifier, phase detector, voltage controlled oscillator and power stage. In addition, a system which eliminates the digitizer andor replaces the indicator with a digital display is described. This system uses CMOS presettable up-down counters giving a direct BCD output with memory, or a binary output if preferred. Circuit details of both stages are included. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE