Laser Track Detection


Posted on Jan 22, 2013

The following diagram shows the basic laser pointer circuit. It is identical to the infrared circuit except that the infrared LED`s have been replaced by the laser pointer unit. Due to the long range of these devices this detector method can easily span great distances and could be used to detect trains in a long section of straight track such as in a lader yard or across the throat of a very wide yard.


Laser Track Detection
Click here to download the full size of the above Circuit.

Laser pointers are not designed for this type of application and careful selection of R1 is required. testing should be carried out to determine the best resistance value for a particular pointer. It is best to start with a high resistance for R1, 50




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Relaxation box
RGB LED Controller with PIC18F25K20
Digital capacitance meter
studio synth circuit
infrared toggle switch for home
Mini efficient coil launcher from disposable camera flashs
Proximity detector schematic
Parallel Port Interfacing and Programming
8051 Development System Circuit Board 3
In System Programming (ISP) for ATMEL chips
Voltage Controlled LFO



Top