The paper provides us with the idea of using photoelectricity reflective on-off switch to control alarm circuit with the characteristics of high sensitivity and favourable concealment.
利用反射式光电开关的电路的通断来控制报警电路,有灵敏度高、隐蔽性好的特点。
The paper provides us with the idea of using photoelectricity reflective on-off switch to control alarm circuit with the characteristics of high sensitivity and favourable concealment.
利用反射式光电开关的电路的通断来控制报警电路,有灵敏度高、隐蔽性好的特点。
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