CAJ | 학술논문

长余辉发光材料的力致发光现象是近年来相关领域的研究热点之一，在力传感器特别是冲击力传感器领域有重要的应用前景。但是，力致发光现象的强度很弱，一般需高灵敏度的光电倍增管进行测量。为了解决这个问题，该文以共掺Dy和Eu的Al2 SrO4长余辉片材为冲击敏感单元，以一个APD雪崩光电二极管为光检测与放大元件，加上自行设计的弱电流检测模块与高压偏置电源，成功地观测到了小球冲击引起的长余辉发光材料的力致发光现象。装置体积小、重量轻、成本低，可以实现冲击力检测设备的小型化。
장여휘발광재료적력치발광현상시근년래상관영역적연구열점지일，재력전감기특별시충격력전감기영역유중요적응용전경。단시，력치발광현상적강도흔약，일반수고령민도적광전배증관진행측량。위료해결저개문제，해문이공참Dy화Eu적Al2 SrO4장여휘편재위충격민감단원，이일개APD설붕광전이겁관위광검측여방대원건，가상자행설계적약전류검측모괴여고압편치전원，성공지관측도료소구충격인기적장여휘발광재료적력치발광현상。장치체적소、중량경、성본저，가이실현충격력검측설비적소형화。
In recent years, mechanoluminescence of long-persistent luminescent materials is attracting more and more attentions for its potential applications in impact sensors . Since the weak intensity of mechanoluminescence, high sensitivity PMT are frequently used to detect it , which is usually expensive and heavy in weight .In this paper , a low-cost mechanoluminescence detecting system was presented , in which long persistent Al2SrO4:(Dy, Eu) is used as the sensing element , and an avalanche photodiode (APD) is used as the optical detecting and amplification unit .By this unit , the mechanoluminescence from Al 2 SrO4:( Dy, Eu) caused by a falling ball was successfully observed .The detecting device has the advantages of small size, light weight, low cost, and high sensitivity.