| 摘要 |
An optical sensor (102) includes a sensor head (112; 304) that has an optical window (312, 314) for directing light into a flow of fluid and/or receiving optical energy from the fluid. The optical sensor (102) also includes a flow chamber (110) that includes a housing defining a cavity (356) for receiving the sensor head (112; 304). In some examples, the flow chamber (110) includes an inlet port (352) defining a flow nozzle that is configured to direct fluid entering the flow chamber (110) against the optical window (312, 314) of the sensor head (112; 304). In operation, the force of the incoming fluid impacting the optical window (312, 314) may prevent fouling materials from accumulating on the optical window (312, 314). |
