Optical fiber sensing underground steam dryness measuring method and device

The invention discloses an optical fiber sensing underground steam dryness measuring method and device, according to the method, a dual-wavelength spectral transmittance method transmission technology is adopted, two light beams with different frequencies are selected, the light with one frequency has very high sensitivity to the water content, and the light with the other frequency has very high sensitivity to the steam content; according to the optical fiber sensing underground steam dryness real-time measuring and transmitting device, the transmissivity and the light absorption coefficient of two light with different frequencies after the light passes through wet steam are detected, the content of water and steam in unit time can be converted, and the steam dryness of the wet steam can be obtained. The problem that online real-time measurement and transmission of underground steam dryness cannot be achieved in the prior art is solved. 本发明公开了一种光纤传感井下蒸汽干度测量方法及装置，所述方法是采用双波长光谱透射率法传输技术，选用两个不同频率的光束，一个频率的光对水含量具有很