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  • Self-Temperature-Compensation Gages(SELCOM Gages)
    When receiving a temperature change, a strain gage bonded to a measuring object generates an apparent strain due to a difference in linear expansion coefficient between the measuring object and the resistive element of the strain gage, and a thermally induced resistance change of the gage element. The SELCOM gage has a resistance temperature coefficient of the resistive element adjusted to match with the measuring object, thereby minimizing the apparent strain. Virtually all KYOWA's strain gages are SELCOM gages, and if bonded to suitable materials, the thermally-induced apparent strain is within 1.8 m/m/C in a temperature range of 10 to 80C . As shown in Fig. 7, the thermally-induced apparent strain of KFG gages is within 1 m/m/C in a temperature range of 20 to 40C in which they are most frequently used.
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