HEAT FLUX SENSOR AND HEAT QUANTITY MEASUREMENT DEVICE

• Main Authors: ASAE KOJI, HOSOI TSUTOMU, HARADA TOSHIICHI, SHIRAISHI YOSHIHIKO, MATSUI HIROHITO
• Format: Patent
• Language: English; Japanese
• Published: 05.12.2019
• Subjects: MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

To measure a heat quantity of each of radiative heat emission and convection heat emission with the same sensor.SOLUTION: A heat flux sensor comprises one continuing plate-like member 2 having a radiation-side surface 2a. A sensor body portion 2 has a first sensor portion 4 with a first thermoelectric conversion portion 7 formed therein and a second sensor portion 5 with a second thermoelectric conversion portion 8 formed therein. An emissivity of a part 4a of the radiation-side surface 2a corresponding to the first sensor portion 4 is different from an emissivity of a part 5a of the radiation-side surface 2a corresponding to the second sensor portion 5. A computation portion 3 determines a convection heat emission quantity and a radiative heat emission quantity from a measurement object using the emissivity of each part 4a, 5b, an output value of the first thermoelectric conversion portion, an output value of the second thermoelectric conversion portion, and an emissivity of a surface of the measurement object.SELECTED DRAWING: Figure 1 【課題】放射放熱と対流放熱とのそれぞれの熱量を同じセンサで計測する。【解決手段】熱流束センサは、放射側表面２ａを有する１つの連続する板状部材２を備える。センサ本体部２は、第１熱電変換部７が形成された第１センサ部４と、第２熱電変換部８が形成された第２センサ部５とを有する。放射側表面２ａのうち第１センサ部４に対応する部分４ａの放射率は、放射側表面２ａのうち第２センサ部５に対応する部分５ａの放射率と異なる。演算部３は、各部分５ａ、５ｂの放射率と、第１熱電変換部の出力値と、第２熱電変換部の出力値と、計測対象物の表面の放射率とを用いて、計測対象物からの対流放熱量と放射放熱量とを求める。【選択図】図１