A highly sensitive detector will show not only the presence of life-threatening high-voltage voltage nearby, but also the presence of static. The device differs in that through two multi-colored LEDs shows the polarity of the charged field. The circuit is very simple and actually consists of several transistors.
Will need
- 2 elements 1.5 V.
- 2 resistors: 20 Ohm, 1 kOhm - http://alii.pub/5h6ouv
- 2 multicolored LED - http://alii.pub/5lag4f
- Chip FDS8958A - http://alii.pub/5nntzx
- Transistors C1815, A1015 - http://alii.pub/5nnu4z
- 2 tact buttons - http://alii.pub/5nnu8o
- Capacitors 100 µF - http://alii.pub/5n14g8
Manufacturing a highly sensitive detector
A simple detector circuit is presented above. If it is divided horizontally, then the upper and lower parts are equal, except for the polarity of the elements. The microcircuit consists of 2 field-effect transistors in one package. She just catches her polarity with each shoulder.Keys are assembled on transistors C1815, A1015 LEDs, which, having received a signal from the microcircuit, ignite one or another Light-emitting diode.
The circuit is assembled by hanging mounting on a PVC base.
The device is made in a plastic bottle.
The electrodes are pieces of multi-core insulation, threaded into a cocktail tube through a slot in the lid.
Checking the detector operation
The buttons are used to reset the state. And if there is static when turned on, buttons are pressed to remove it.
Now, if you charge an object with static electricity and bring it to the device, one of the LEDs will light up, indicating the presence of static voltage and its polarity.
If the voltage is alternating, then both will light up. LED.
The same effect is observed under a high-voltage power line.
