서지주요정보
Ni-Ti 형상기억합금 선의 센서로의 응용을 위한 연구 = A study on application of Ni-Ti shape memory alloy wire as a sensor
서명 / 저자 Ni-Ti 형상기억합금 선의 센서로의 응용을 위한 연구 = A study on application of Ni-Ti shape memory alloy wire as a sensor / 이창호.
저자명 이창호 ; Lee, Chang-Ho
발행사항 [대전 : 한국과학기술원, 1998].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8008616

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 98064

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Shape Memory Alloy(SMA) has been used in many sngineering fields because of it's good characteristics of actuator. For example, SMA wire can be embedded easily in the polymer composite laminate and then be used as actuator for structural control. Since the actuation force and strain have a significant influence on the electrical resistance of SMA wire, it is possible to use the SMA wire as a sensor of such a physical quantities. In this study, the possibility for the application of Ni-Ti SMA wire as sensor is investigated. Tensile tests are conducted with Ni-Ti SMA wire specimens under the constant temperature. For this test a simple material tester is developed. Through these tests the deformation behavior of Ni-Ti SMA wire and electrical resistance variations are observed. Based on the martensite-austenite phase transformation model, electrical resistance variations of specimen are simulated. Constrained heating tests are also conducted with a same specimens. Through these tests the relationship between electrical resistance and actuation force are obtained. From the experimental results of Ni-Ti SMA wire specimens, the following results are obtained. Ni-Ti SMA wire showed good linearity in relationship between the strain and electrical resistance within the pseudo-elastic range. During R-phase transformation the electrical resistance is linearly decreased with increasing actuation force. Ni-Ti SMA wire sensor is applied to Glass Fiber Reinforced Plastic(GRP) composite beam to sense strain and actuation force. Differential operation of electrical resistance is applied to remove the influences of temperature change when used as a strain sensor. As a results we find out the possibility of Ni-Ti SMA wire as a dual-mode sensor for strain and actuation force.

서지기타정보

서지기타정보
청구기호 {MME 98064
형태사항 viii, 96 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Chang-Ho Lee
지도교수의 한글표기 : 이정주
지도교수의 영문표기 : Jung-Ju Lee
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 93-96
주제 형상기억합금
상변태
센서
Shape memory alloy
Phase transformation
Sensor
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