Real-time online liquid physical parameter measuring device with window glass used as sensing window

A real-time online liquid physical parameter measuring device with a window glass used as a sensing window is disclosed. Window glass is arranged on a container filled with a liquid. A cassette is arranged on the periphery of the window glass on the container. A semiconductor laser installed on a support is disposed inside the cassette. A CCD camera which is connected with a computer through a data line is arranged at an end of the cassette. The device is characterized in that an imaging layer is attached to the outer surface of the window glass; a light-emitting end of the semiconductor laser is provided with a self-focusing rod-shaped lens which is lapped with the imaging layer; and optical axis of the self-focusing rod-shaped lens and center line of the CCD camera are vertical to the window glass and are positioned at the central position of the imaging layer. The device provided by the invention has advantages of simple structure, clear boundary of obtained optical images, high contrast ratio, wide measur