The Measurement of Membrane Deformation Behavior in Kogas Pilot LNG Storage Tank by the use of Mechanical/Electrical Sensor (II)

기계적/전기적 측정 센서를 이용한 Kogas Pilot LNG 저장탱크 멤브레인 변형 거동 측정(II)

Korea Gas Corp. has developed the design technology of the LNG storage tank. The membrane to be applied inside of LNG storage tank is provided with corrugations to absorb thermal contraction and expansion caused by LNG temperature. We constructed strain measurement system by using strain gage. In this paper, some problems which should be considered when measuring strain at $-162^{\circ}C$, are discussed by presenting test results on the characteristics of strain gages, Temperature sensor, adhesive and lead wire. And presenting the procedure of the constructing strain measurement system.