SENSOR UNIT FOR DETERMINING PROPERTIES OF A LUBRICANT AND MACHINE ELEMENT AND MACHINE ASSEMBLY

摘要

The invention relates to a sensor unit for determining properties of a lubricant; for example, a lubricating grease in a rolling bearing. The invention further relates to a machine element having the sensor unit according to the invention and to a machine assembly having the machine element according to the invention. The sensor unit according to the invention first of all includes a sensor housing having a window which can be aligned to the lubricant. A transmitter for emitting electromagnetic radiation through the window and a receiver for receiving electromagnetic radiation which passes through the window are located in the sensor housing. Evaluating electronics arranged in the sensor housing are electrically connected at least to the receiver. The evaluating unit is designed to generate at least one digital sensor signal. The sensor unit further includes an electrical connection, which is led through the sensor housing and electrically connected to the evaluating electronics in the sensor housing.

主权项

1. A sensor unit for determining properties of a lubricant, comprising:
a sensor housing with a window, the window being adapted to be directed onto the lubricant, a transmitter arranged in the sensor housing that transmits electromagnetic radiation through the window, a receiver arranged in the sensor housing adapted to receive electromagnetic radiation through the window, control electronics and signal conditioning electronics arranged in the sensor housing that are electrically connected to the transmitter and to the receiver and are constructed to generate at least one digital sensor signal, and an electrical connection that is guided through the sensor housing and is electrically connected to the control electronics and the signal conditioning electronics, andthe control electronics and the signal conditioning electronics comprise at least one A/D converter that converts an analog output signal of the receiver into the digital sensor signal.