Performance evaluation
of the infrared sensor
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I could not measure the range of the detection, being clear. However, because it is using the Fresnel lens, it is possible to detect until the fairly long-range change. In the specification, the change about 30 m ahead can be detected. Actually, when I used, the change of the person more than 30 m ahead could be detected. The infrared sensor equipment which was made this time detects the change of the infrared rays. So, it isn't possible to detect in case of not being the moving person or the animal. It is detected by the sensor when the hand crosses the sensor. However, it gets not to detect when continuing to stop the hand in front of the sensor. It detects when moving again. I think that it is possible if making interrupt the front of the sensor regularly in the one like the shutter to make detect the stationary person or the animal continuously. It is the way of changing the infrared rays compulsorily. The equipment seems to become big a little. You devise by yourself if there is necessity.  |