Thermally Operated Direction Detector


Posted on May 17, 2012

A heat-sensitive sensor can be used to construct a direction detector. Such a sensor reacts to all an


Thermally Operated Direction Detector
Click here to download the full size of the above Circuit.

imal heat. The one used in this design has a sensitive surface that has been divided into two. It, therefore, makes a difference, whether the heat approaches from the left or the right. The indication for cold objects is, of course, exactly the opposite. Circuit IC1B forms a symmetric supply. Terminal s of the sensor is its output. The signal at s is amplified in IC1A by a factor of about 70 before it is available at the output of the detector. To obtain good directivity, it is best to place the sensor behind a single narrow slit, rather than behind the usual raster of a multifacetted mirror. The circuit draws a current of only a few mA from a 5-V supply.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Capacitor discharge ignition system ( PIC 16F615 )
    Line signal to phono adaptor circuit
    sensitive FM Transmitter
    Electronic Touch Switch
    QCard Controller 68HC11 Processor
    High Voltage Generator
    Discharge time relay circuit



    Top