Device and method for estimating a load in a bearing having high frequent oscillations

A device for estimating a load in a bearing, the bearing comprising a first ring, a second ring, and a row of rolling elements arranged between the first ring and the second ring, the device comprising:

• at least one sensor probe attached directly to the first ring without a sensor holder, the at least one sensor probe being configured to measure a displacement and/or strain of the bearing, the displacement and/or strain of the bearing being measured as a sensor signal waveform, the sensor signal waveform being a product of a carrier waveform and a load waveform,
• a transmitting unit that transmits the sensor signal waveform from the at least one sensor probe to a receiving unit,
• the receiving unit configured to receive the sensor signal waveform from the transmitting unit, and
• an electronic control unit connected integrally to the receiving unit and configured for processing the received measured sensor signal waveform, by
• a rolling element frequency determined from the measured sensor signal waveform,
• the carrier waveform determined based on the determined rolling element frequency and the measured sensor signal waveform,
• the load waveform determined based on determined carrier waveform and the measured sensor signal waveform, and
• the load in the bearing estimated from the determined load waveform.