[Updated on July 12] Integration of CiNii Articles into CiNii Research from April 1, 2022

半導体を用いた熱型最大需用表示器

Bibliographic Information

Other Title
  • THERMAL DEMAND METER HAVING SEMICONDUCTOR RETARDING ELEMENT

Search this article

Abstract

This paper deals with the principle and porformance of thermal demand meters having semiconductor retarding element. The resistance of this semiconductor is very sensitive to temperature. When the semiconductor is heated by electric power in proportion to its load current, the temperature rise of the semiconductor element is proportional to the heating power. The time constant is adjustable by controlling the volume of the semiconductor or the heating method. The compensating method for the change of atmospheric temperature is given by using 2-semiconductor or 4-semiconductor element systems for the measuring circuit. The demand volt-ampere meter has one heating element, while the demand wattmeter has two heating elements. The characteristics of the demand meters are described on various conditions of temperature, power factor, frequency, current and voltage.

Article

信州大学工学部紀要 6: 19-36 (1956)

Journal

Articles

See more

Research Data

See more

Books

See more

Dissertations

See more

Research Projects

See more

Products

See more

Details

Back to top