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Laser Circuits Page 2 Last Updated on:
Wednesday, November 01, 2006 05:08 AM Lasers: #-KLM-Z
Circuits Designed by Dave Johnson,
P.E. :
Laser Used as Vehicular Traffic Counter
This is an illustration how a laser could be used to count traffic and measure the speed of each car passing through the sensor area. (added
7/06)
LASER/LED LIGHT OUTPUT
INTENSITY METER
This circuit uses a large 1cm X 1cm silicon PIN photo diode and a transimpedance amplifier to measure the light power output of infrared and
visible LEDs and laser diodes. It can be modified to produce almost any milliwatts to volts scale factor. It can be connected to either a
multi-meter or an oscilloscope.
Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
Laser Communication System:
This is a simple Laser communication system. It can transmit and receive signal from any audio device.Communication distance is few meters.
All components are not critical. Transistor 2N2222 may be on the coolrib. Laser diode is from laser pointer (added 6/03)
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