Accession Number:

AD0754182

Title:

Modulation Systems for Galvanometer Controlled Temperature,

Descriptive Note:

Corporate Author:

GHENT RIJKSUNIVERSITEIT (BELGIUM) NATURAL SCIENCE LAB

Personal Author(s):

Report Date:

1968-02-20

Pagination or Media Count:

2.0

Abstract:

Two modulation systems are described. In the first one a triangular wave voltage is used to modulate a thermocouple signal. Together with this system is given a description of a new galvanometer relay system wherein the drift of the photosensitive resistors in the galvanometer is of no importance. Secondly a description is given of a simple way of modulating a Wheatstone bridge with an indirectly heated negative temperature coefficient resistor. Both systems enable temperature control to plus or minus 0.01 degC. Author

Subject Categories:

  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE