为了精确测量刹车盘受压变形的数据，测量系统必须工作在非常极端的情况下。速度：2000转每分钟；表面温度：600°C等等

To obtain accurate data on the de-formation of brake disc friction rings under stress, they must be measured under extreme conditions. Nominal speed: 2000 1/min. Surface temperature: approx. 600 °C The following demands are therefore made on the measuring system:
1. High bandwidth for frequency analyses up to the 10th harmonic.

2. High accuracy minimum zero shift with change in temperature, no change in measuring signal due to temperature-related changes in magnetic and conductive properties.

3. High resolution because deformation takes place in the range < 100 μm.

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