BX-SR501 人体红外感应模块 热释电
BX-501人体红外感应模块 是基于红外线技术的自动控制产品。灵敏度高、可靠性强、超低功耗，超低电压工作模式。广泛应用于各类自动感应电器设备,尤其是干电池供电的自动控制产品.
技术参数
| 外形尺寸 | 24*24mm |
| 工作电源 | DC3~15V |
| 静态功耗 | <20μA |
| 工作电压 | 输入：3V~15V 输出3.3V |
| 延迟时间 | 延伸、灵敏度、光控均可调 |
| 工作温度 | -20℃~60℃ |
| 热释电红外传感器 | 双元，底噪音，高灵敏度 |
| 光敏电阻 | 可增加光敏电阻，依客户要求 |
| 延伸输出时间 | 电晶体的输出可以直接连接到微控制器或逻辑装置 |
| 灵敏度 | 高灵敏度 |
功能
1、全自动感应:人进入其感应范围则输出高电平，人离开感应范围则自动延时关闭高电平，输出低电平。
2、
光敏控制(可选）：模块预留有位置，可设置光敏控制，白天或光线强时不感应。光敏控制为可选功能,出厂时未安装光敏电阻。如果需要，请另行购买光敏电阻自己安装
3、温度补偿(可选择，出厂时未设)：在夏天当环境温度升高至30～32℃，探测距离稍变短，温度补偿可作一定的性能补偿。
4、两种触发方式：（可跳线选择）
a、不可重复触发方式:即感应输出高电平后，延时时间段一结束，输出将自动从高电平变成低电平；
b、可重复触发方式：即感应输出高电平后，在延时时间段内，如果有人体在其感应范围
活动，其输出将一直保持高电平，直到人离开后才延时将高电平变为低电平（感应模块检
测到人体的每一次活动后会自动顺延一个延时时间段，并且以最后一次活动的时间为延时
时间的起始点)。
5、具有感应封锁时间(默认设置:2.5S封锁时间)：感应模块在每一次感应输出后（高电平变
成低电平），可以紧跟着设置一个封锁时间段，在此时间段内感应器不接受任何感应信号。
此功能可以实现“感应输出时间”和“封锁时间”两者的间隔工作，可应用于间隔探测产
品；同时此功能可有效抑制负载切换过程中产生的各种干扰。(此时间可设置在零点几秒
—几十秒钟)。
6、工作电压范围宽：默认工作电压DC3.6V~30V。
7、微功耗:静态电流<50微安，特别适合干电池供电的自动控制产品。
8、输出高电平信号：可方便与各类电路实现对接。
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