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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The last thing you want in the face of an advancing zombie horde is a blown fuel sensor.

面对一群不断前进的僵尸，你最不想看到的就是一个爆炸的燃料传感器。

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NOTE: RH front and RH rear height sensors fitted to vehicles with Xenon headlamps have a white stripe across the back face of the sensor housing for identification.

注：RH前、RH高度传感器装在后面有氙气大灯的汽车上有一道白色条纹在背上面对传感器住房，以便确认。

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

FORBES: Hands on with the Galaxy S4: Failing the cool factor

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