Optical dissolved oxygen sensor

The invention relates to an optical dissolved oxygen sensor, which comprises a sensor main body and a sensing cap, the sensing cap is provided with a fluorescent substance and is arranged at the end part of the sensor main body, and the sensor main body at least comprises a light source which at least can emit excitation light and reference light; the receiver is used for receiving an optical signal from the outside; a processor; the shell is used for accommodating the light source, the receiver and the processor; the sensor is characterized in that the light source and the receiver can be arranged at the end part of the sensor main body through a mounting piece; the beneficial effects of the invention are that a light guide part is saved, and the detection precision and stability are prevented from being affected by the aging of the light guide part. 本发明涉及一种光学溶解氧传感器，包括传感器主体和传感帽，所述传感帽上设有荧光物质且设于传感器主体的端部，所述传感器主体至少包括：光源，至少能够发出激励光和参比光；接收器，用于接收来自外部的光信号；处理器；壳体，用于容纳光源、接收器以及处理器；其特征在于：所述光源和接收器能够通过安装件设于所述传感器主体的端部；本发明的有