555 meter circuit diagram of a simple cavers


Posted on Mar 28, 2007    5553

As shown, the apparatus includes cavers point detection circuit and triggering display circuit. The cavers instrument is a test probe grip in the hands of another probe touches


555 meter circuit diagram of a simple cavers
Click here to download the full size of the above Circuit.

the skin, when approaching or touching the acupuncture points, due to the low resistance between the two electrodes, so that VT1, VT2 composite tube saturated conduction, 555 feet 2 was low, the IC is set, VT3 conduction, visual and audible display signal that points to detect quasi; non-acupuncture points, due to the large skin resistance, VT1, VT2 off, 555 in the reset state, silent light signal.




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