| 摘要 |
The device has a test body (1) provided with an outer part (2) and an inner part (3), where the inner part is folded with the outer part by connection parts (21). The inner and outer parts are separated by a space, where thickness and thermal expansion coefficients of body portions and electrodes are determined such that positive variation of the connection part is compensated by negative variation of the part. The inner part is provided with a bore in which a roller bearing is mounted on a shaft. |
