LIQUID TYPE IDENTIFICATION DEVICE - MITSUI MINING & SMELTING CO

Title:

LIQUID TYPE IDENTIFICATION DEVICE

Document Type and Number:

WIPO Patent Application WO/2005/073700

Kind Code:

A1

Abstract:

There is provided an identification device capable of accurately, rapidly, and easily identifying a hydrocarbon-based liquid and alcohol-based liquid. An identification sensor unit (2) is arranged to face a flow passage (20) of a liquid to be measured and includes an indirect heating type liquid type detection unit (21) having a heating body and a temperature-sensitive body, and a liquid temperature detecting unit (22) for detecting the temperature of the liquid to be measured. The identification sensor further includes an identification calculation unit for applying a single pulse voltage to the heating body of the liquid type detection unit (21) so as to generate heat and identifying the liquid to be measured according to an output of a liquid type detection circuit formed by the temperature-sensitive body of the liquid temperature detecting unit (21) and the liquid temperature detection unit. The identification calculation unit identifies the liquid to be measured according to a liquid-type-corresponding first voltage value corresponding to a difference between the initial temperature of the temperature-sensitive body when the heating body generates heat and a first temperature at the moment when a first time has elapsed from the start of application of the single pulse and a liquid-type-corresponding second voltage value corresponding to a difference between the initial temperature of the temperature-sensitive body and a second temperature at the moment when a second time longer than the first time has elapsed from the start of application of the single pulse.

More Like This:

JP2008539404	Photothermal test camera with an optical device that stretches the cross section of the laser beam
WO/2023/177301	A SENSING DEVICE FOR DETECTING ANALYTES USING A BASE MATERIAL HAVING A POLYMER MATERIAL THEREON, AS WELL AS A METHOD FOR MANUFACTURING SUCH SENSING DEVICE
JP2533885	[Title of Invention] Test apparatus for heat-resistant tubular member

Inventors:

KAWANISHI TOSHIAKI (JP)
TAKAHATA TAKAYUKI (JP)
YAMAGISHI KIYOSHI (JP)

Application Number:

PCT/JP2005/000894

Publication Date:

August 11, 2005

Filing Date:

January 25, 2005

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUI MINING & SMELTING CO (JP)
KAWANISHI TOSHIAKI (JP)
TAKAHATA TAKAYUKI (JP)
YAMAGISHI KIYOSHI (JP)

International Classes:

G01N25/18; G01K13/02; G01N27/18; G01N33/28; (IPC1-7): G01N25/18

Foreign References:

JP2001004422A	2001-01-12
JPH11237356A	1999-08-31
JPH04178550A	1992-06-25
JPH0533712Y2	1993-08-26
JP2004101385A	2004-04-02
JP2004125465A	2004-04-22

Other References: