A ferrous metal pole wheel passing the sensor face changes the magnetic field strength, resulting in an ac voltage being induced in the coil.

当一个铁磁性极轮通过传感器头部的感应磁场时，就会在电感线圈内产生一个交流电压。

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Now the sensor has been successfully used to monitor the working condition of supports at fully mechanized coal face with good results.

目前该传感器已成功地用于综采支架工况监测，使用效果良好。

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The design of the whole hardware circuit, including theCPLD processing of the sensor signal, the PCI bus inter-face circuit is introduced.

详细介绍了整个系统的硬件电路设计，包括光栅传感器信号的CPLD处理、PCI总线接口电路设计；

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Photo manipulation, automatic translation, health sensor integration, even face-tracking were all presented as top innovations for the new device.

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User friendly, the new "Face Detection AF", prioritizes focus on the face of the subject when detected by the sensor.

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens