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Title:
MONITORING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/175849
Kind Code:
A1
Abstract:
An air cylinder 50 is provided with a cylindrical cylinder 52 and a piston 51 that is moved by the pressure of a fluid fed to chambers 56, 57 disposed within the cylinder 52. A monitoring device 1 is provided with a heat flux sensor 10 and a detection unit 13. The heat flux sensor 10 is positioned at the cylinder 52 and detects the heat flux flowing in the cylinder 52 as a result of the compression or expansion of the fluid in the chambers 56, 57 corresponding to the operation of the piston 51. The detection unit 13 detects the operational state of the piston 51 on the basis of an output signal from the heat flux sensor 10.

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Inventors:
HARADA, Toshikazu (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
SAKAIDA, Atusi (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
TANIGUCHI, Toshihisa (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
GOUKO, Norio (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
OKAMOTO, Keiji (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
SAITOU, Keita (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2017/014447
Publication Date:
October 12, 2017
Filing Date:
April 07, 2017
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F15B20/00; F15B15/28; G01K5/44; H01H3/16
Foreign References:
JP2010241034A2010-10-28
JP2005330837A2005-12-02
JP2017072578A2017-04-13
JP2015223592A2015-12-14
Other References:
See also references of EP 3441623A4
Attorney, Agent or Firm:
TOHDA, Kiyoshi (PDI Patent & Trademark Firm, KOJIMACHI MK BLDG. 3F 3-30, Kojimachi 4, Chiyoda-k, Tokyo 83, 〒1020083, JP)
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