Heat flux sensor and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-9909936-B2
Application number	US-201314443162-A
Country	US
Kind code	B2
Filing date	Dec 25, 2013
Priority date	Dec 27, 2012
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

A heat flux sensor to be attached to a hole portion defined in a surface of an object includes a body portion having an outer circumferential face, and an exterior end face that is flush with the surface of the object. The body portion includes a plurality of bored holes extending from an outer face other than the exterior end face of the body portion, with respective tips of the bored holes being arranged on the same normal line of the exterior end face. The heat flux sensor further includes a plurality of heat sensors having wiring lines leading to the outer face of the body portion through the bored holes, and a filling material that fills the bored holes to seal the heat sensors.

First claim

The invention claimed is:

1. A heat flux sensor capable of being attached to a hole portion defined in a surface of an object to be measured, the heat flux sensor comprising:
a body portion having an outer circumferential face, and an exterior end face that is flush with the surface of the object to be measured,
wherein the body portion includes a plurality of bored holes extending from the outer circumferential face of the body portion to a central axis of the body portion;
wherein the heat flux sensor further comprises:
a plurality of heat sensors arranged so as to abut against tips of the respective bored holes and having respective wiring lines leading to an outer face of the body portion through the respective bored holes;
a filling material that fills the bored holes to seal the heat sensors inside the bored holes; and
a cylindrical pipe portion that covers the outer circumferential face of the body portion,

wherein an outer circumferential face of the cylindrical pipe portion faces an inner circumferential face of the hole portion, and
wherein a gap between the body portion and the cylindrical pipe portion is filled with the filling material.

2. The heat flux sensor according to claim 1 , wherein
the plurality of heat sensors includes three or more heat sensors.

3. The heat flux sensor according to claim 1 , wherein
the body portion has a columnar shape.

4. The heat flux sensor according to claim 1 , wherein
a gap between the heat flux sensor and the hole portion is filled with the filling material.

5. The heat flux sensor according to claim 1 , wherein
the bored holes are positioned at equal intervals in a circumferential direction of the body portion.

6. The heat flux sensor according to claim 1 , wherein
a material of the body portion and a material of the pipe portion are the same as a material of the object to be measured.

7. The heat flux sensor according to claim 1 , further comprising
an oxide film on the exterior end face of the body portion.

8. A method for manufacturing a heat flux sensor, the method comprising:
forming a hole portion in a surface of an object to be measured;
forming a body portion having an outer circumferential face and an exterior end face that is flush with the surface of the object to be measured;
forming the body portion with a plurality of bored holes extending from the outer circumferential face of the body portion to a central axis of the body portion;
arranging a plurality of heat sensors so as to abut against tips of the respective bored holes and laying respective wiring lines so as to lead to an outer face of the body portion through the respective bored holes;
filling insides of the bored holes with a filling material so as to seal the heat sensors;
providing a cylindrical pipe portion so as to cover the outer circumferential face of the body portion, an outer circumferential face of the cylindrical pipe portion facing an inner circumferential face of the hole portion; and
filling a gap between the body portion and the cylindrical pipe portion with the filling material.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Moriwaki Atsushi
• Tajiri Shinsuke
• KAMAYA Kazuhiro
• Tsubouchi Masanori
• Saito Tsubasa
• Yamada Kazuhiro

Classifications

• G01K17/20 Primary

  across a radiating surface, combined with ascertainment of the heat-transmission coefficient · CPC title

• G01K17/08 Primary

  based upon measurement of temperature difference {or of a temperature} · CPC title