Title:
METHOD AND DEVICE FOR DETECTING PRESENCE OF SUBSTANCE OR GENERATION OF CHANGE IMMEDIATELY BEFORE PHYSICAL STATE CHANGE IN FLUID
Document Type and Number:
Japanese Patent JPS61153555
Kind Code:
A
Abstract:
For detecting the occurrence or the imminence of a change of phase within a fluid, a predetermined quantity of heat is generated within thermally conducting means in contact with the fluid. The temperature of said means is measured and compared with a reference temperature so selected as to correspond to the apparition of a second phase within said fluid. In particular, effective or imminent apparition of gas bubbles can be detected in a liquid wherein the temperature of the thermally conducting means has a reference temperature close to the temperature of the liquid.
Inventors:
JIRUBEERU TEYURON RAGO
Application Number:
JP26271485A
Publication Date:
July 12, 1986
Filing Date:
November 25, 1985
Export Citation:
Assignee:
ELECTRICITE DE FRANCE
International Classes:
G01N25/08; G01N27/18; (IPC1-7): G01N25/08
Attorney, Agent or Firm:
Wakabayashi Tadashi