25-02-2015, 10:10 PM
please can anyone give me the principle of touch sensitive siren
|
touch sensitive siren and its principle
|
please can anyone give me the principle of touch sensitive siren
05-04-2017, 04:43 PM
It is very similar to the previous one and the circuit diagram is quite the same. The Circuit does not seem to use any kind of complex multivibrators or sensitive electronic components. The Circuit works under the Darlington Pair theory, as discussed in my last posts the Darlington Pair will be activated if we apply an Impedence to its input terminals. In the last two posts the means of connection is water (with Impedance) and now it is our Skin. Yes SKIN is a conductive medium with high resistance (approximately 1Mohms). When we play through the two input terminals the Darlington pair is turned on which will change the Alarming section and generate the tone.
SENSITIVE SWITCH CIRCUIT DIAGRAM
SENSITIVE SWITCH CIRCUIT DIAGRAM
![[Image: Simple%2Btouch%2Bsensitive%2Bswitch%2Bci...722197.jpg]](https://2.bp.blogspot.com/-TYiLi7uiZM4/T9QzRo5xlSI/AAAAAAAAA0w/GHjcR9PhOiM/s300/Simple%2Btouch%2Bsensitive%2Bswitch%2Bcircuit-722197.jpg)
|
« Next Oldest | Next Newest »
|
