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我们已研制了一种体积为5×6×3mm,采用金属弹簧片的光电式力传感器。该传感器的关键部件是一个水平放置的U形金属弹簧。弹簧、发光二极管、光电二极管埋在不透明的硅酮橡胶内,下面为一刚性衬底。当负载加在橡胶面上时,U形弹簧的上片朝下转,因此减小了安在下片上的发光二极管射到光电二极管的光强。通过适当的放大和偏置电路,可以得到不同的负载相应电流值。发光二极管采用
We have developed a photoelectric sensor with a volume of 5 × 6 × 3mm using a metal spring plate. The key component of the sensor is a horizontal U-shaped metal spring. Spring, light-emitting diode, photodiode buried in opaque silicone rubber, the following is a rigid substrate. When the load is applied to the rubber surface, the upper surface of the U-shaped spring is turned downward, thereby reducing the light intensity of the light-emitting diode mounted on the lower sheet to the photodiode. Through appropriate amplification and bias circuit, you can get different load corresponding current value. Light-emitting diode used