For non-drug correction of the condition of the body are widely used methods of stimulation of biologically active points (BAP). or acupuncture points. The difficulties of applying these methods arise because of the difficulty of finding a BAT on the human body, since the area does not exceed BAHT 1 mm2.
The proposed device controlling the resistance of the skin in places the alleged finding of the BAT, you can find them easily and clearly. Device housed in a metal enclosure dimensions 96x38x39 mm. the housing contains the electrical circuit, the battery and the switch. On one end side the housing is fixed to the insulator electrode active search, and on the other side display LEDs. The passive electrode is a metal body when you search for the BAT held in the hand.
In Fig.1 shows a diagram of the device.

To the inverting input of the comparator DA1 connects the electrode active search. The resistor R1 determines the input the resistance of the device, the capacitor C1 serves to filter noise, resistor R2 limits the current indicator LEDs HL1 HL3.... Variable resistor R4 regulates the voltage supplied to the human body (through the fingers holding the body of the device). Resistors R3 and R5 limit the output voltage. The tension between the search and the passive electrodes is not more than 5 V, the current - not more than of 0.5 μa. The current draw in sleep mode is 1 mA. but if glow LEDs - 5…BMA.
The device is made on a printed circuit Board, a drawing of which is shown in Fig.2. On it has all the parts except the led and the battery. The fee is calculated the use of the variable resistor SDR-9a, it is installed on the Board to G shaped bracket. Near the handle of the resistor can be glued scale (for example, from 10 tick marks). The remaining resistors - type MLT, the power button is a microswitch MP-7, LEDs - ALB. The device is powered by battery "Krona".

Design search of the electrode allows to normalize the pressure the surface of the skin. The drawing of the insulator installed in it search the electrode shown in Fig.3.

Insulator made of organic glass, hard rubber or fluoropolymer, and the electrode is best suited pin connector from SR (02 mm). These connectors have silver plated contacts.
For ease of reference points on the surface of the head, back or feet. one of LEDs better to do remote and connect the case wires length 0,5…1 m. If you are searching BAHT in the visible part of the skin. after find the point of slight pressure can to the electrode. Then on the surface of the skin will remain clearly visible print of the insulator, the center of which and will be the sought BAHT.
Author: Y. Plotnikov (Novosibirsk).