When the ice-jamming position of pipe is checked by resistance strain sensation, it was proposed to adopt a clamp which could be dismantled and installed times without number to make the operation convenient and avoid affixing resistance strain flakes repeatedly. A clamp with n-structure and a small elliptic hole was advanced, then the loading situation of clamp was analyzed theoretically and the distribution of strain was simulated through finite element method. The analysis results indicate that with this clamp the signal-to-noise of the sensor is improved and lays a foundation for the use of clamp in checking ice-jamming position of pipe.
