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    • 8. 发明授权
    • Fast bichromatic pyrometer for use with an optical fiber
    • 用于光纤的快速双色高温计
    • US5755510A
    • 1998-05-26
    • US546454
    • 1995-10-20
    • Daniel HernandezGabriel OlaldeEmmanuel MilcentMichel Clement
    • Daniel HernandezGabriel OlaldeEmmanuel MilcentMichel Clement
    • G01J5/00G01J5/08
    • G01J5/04G01J5/0014G01J5/0022G01J5/0088G01J5/02G01J5/0215G01J5/026G01J5/048G01J5/08G01J5/0806G01J5/0809G01J5/0821G01J5/0887G01J5/602
    • The present invention relates to a fast bichromatic pyrometer for measuring the temperature T of a gas or of a moving surface, the pyrometer comprising: a measurement probe placed facing the surface or immersed in the gas and picking up thermal radiation that is characteristic of the temperature of said surface or of said gas; a single optical fiber connected to the measurement probe and transmitting said radiation; an optical block connected to the optical fiber and receiving said radiation, the optical block including inlet collimation means for transmitting all of said radiation, separation means formed by a dichroic slide for separating the transmitted radiation into two distinct spectral bands, and outlet focusing means for concentrating the two separated bands of radiation; a quantum detection circuit receiving said separated bands of radiation and converting them into two color voltages Vr, Vb; and a treatment circuit receiving the voltage signals and including analog-to-digital conversion means, a digital signal processor for calculating the ratio Vr/Vb from these digital values, and memory means provided with a table of predetermined values of T=f(Vr/Vb) as obtained by calibration and delivering at its output, on the basis of the calculated ratio, the temperature T of the surface or of the gas.
    • 本发明涉及一种用于测量气体或运动表面的温度T的快速双色度测温仪,该高温计包括:面向表面放置或浸入气体中的测量探头,并拾取温度特性的热辐射 的所述表面或所述气体; 连接到测量探头并传送所述辐射的单个光纤; 连接到光纤并接收所述辐射的光学块,所述光学块包括用于传输所有辐射的入射准直装置,用于将透射辐射分离成两个不同光谱带的二向色滑块形成的分离装置;以及出射聚焦装置, 集中两条分离的辐射带; 接收所述分离的辐射带并将其转换成两个色电压Vr,Vb的量子检测电路; 以及接收电压信号并包括模数转换装置的处理电路,用于从这些数字值计算比率Vr / Vb的数字信号处理器,以及具有预定值T = f(Vr / Vb),通过校准和输出,根据计算出的比例,输出表面或气体的温度T.