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总结了光化学传感器的机理及其发展现状，特别介绍了近年来发展较快的利用表面等离子体激元共振（SPR）效应及溶胶-凝胶（sol-gel）法薄膜工艺制备的波导式、光纤式化学传感器，讨论了发展中存在的问题，提出了今后的研究方向。
The mechanism of photochemical sensor and its development are summarized. In particular, the rapid development of surface plasmon resonance (SPR) and sol-gel thin film technology are introduced in recent years. Type chemical sensor, discussed the problems in the development, put forward the future research direction.