| 摘要 |
PURPOSE: To facilitate measurement operation by automatically obtaining the length of a measurement sample at a reference temperature using a thermomechanical analyzer(TMA). CONSTITUTION: A total reference sample and a length-measurement reference sample whose total length LO at a reference temperature is known are arranged in a support pipe to detect a differenceΔLO in the relative length of a reference sample whose length is to be measured to the total reference sample at the reference temperature. Then, the total reference sample and the measurement sample are arranged in the support pipe to detect a differenceΔL1 in the relative length of the sample to be measured to the total reference sample at the reference temperature. Then, a total length L1 at the reference temperature of the sample to be measured is calculated based on the total length LO, the relative length differenceΔLO of the measurement reference sample, and the relative length differenceΔL1 of the sample to be measured.
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