Title:
【発明の名称】光ファイバ放射温度計
Document Type and Number:
Japanese Patent JP3325700
Kind Code:
B2
Abstract:
PURPOSE:To measure temperature without being affected by the optical fiber length by using two wavelegths. CONSTITUTION:Radiation energy from a measuring object 2 is detected with detection elements 71, 72 through an optical fiber 1 and two different filters 61, 62. By calculating the ratio of the outputs of the detection elements 71, 72 with a ratio operation means 80, the temperature is calculated with the operation means 80. One or both wavelength zones in the measuring wavelength zone are controlled by a control means 9 before the measurement so that the transmittances in the optical fiber 1 of each wavelength zone become equal.
More Like This:
| WO/2012/104144 | IR THERMOMETER BAFFLES |
| JPS6041292 | [Title of the Invention] Multi-channel non-contact light sensing system |
| WO/2021/175482 | TRANSPARENT DOME FOR A PYRANOMETER |
Inventors:
Isao Hishikari
Motohiko Kitazawa
Yoshinobu Minagawa
Motohiko Kitazawa
Yoshinobu Minagawa
Application Number:
JP8555494A
Publication Date:
September 17, 2002
Filing Date:
March 31, 1994
Export Citation:
Assignee:
Chino Co., Ltd.
International Classes:
G01J5/08; G01J5/10; G01J5/60; (IPC1-7): G01J5/10; G01J5/08
Domestic Patent References:
| JP63100340A | ||||
| JP5142049A |