In recent years, a variety of new sensors have been used in the field of conventional weapons, such as pressure, speed and angle sensors, among which a large number of photoelectric sensors are used, such as high-precision grating angle sensors for the detection of high and low angles and azimuth angles of artillery. , The universal photoelectric digital sensor is used for the measurement of firearms, the high-precision photoelectric digital sensor is used for the target angular velocity measurement, the photoelectric speedometer is used for the detection of the movement characteristics of the artillery rear seat device, and the photoelectric speed sensor is used for the performance detection of the vehicle. Wait.
Photoelectric smoke alarm: when there is no smoke, the light emitted by the light-emitting diode travels straight, the phototransistor does not receive the signal, and there is no output; when there is smoke, the light emitted by the light-emitting diode is refracted by the smoke particles, so that the transistor receives the light and has a signal output , An alarm is issued.
Tachometer: Paint the rotating shaft of the motor in black and white. When the motor rotates, reflected light and non-reflected light alternately appear. The photoelectric sensor correspondingly intermittently receives the reflected light signal and outputs intermittent electrical signals. The square wave signal is amplified and shaped by the amplifier and shaping circuit, and the motor speed is output by the electronic digital display.
