A device for extracting poison from bees. Scheme, description

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A device for extracting poison from bees. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Home, household, hobby

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Under natural conditions, the bee releases poison when bitten, while it loses its sting and dies. The venom selection process can be safe for the bees. To do this, it is enough to irritate the bee with electrical voltage pulses with an amplitude of 40-50 V with a pulse duration of 20-30 μs. Such a voltage is applied to thin, closely spaced wires stretched over the glass and lowered into the hive. A bee sitting on wires, in response to irritation through a sting, releases a drop of poison, which falls on the glass. The duration of the collection of poison from one hive is 5 minutes, after which the bees must be given an hour break.

The circuit of the device that generates these pulses is a blocking oscillator made on transistor VI and transformer T1. High-voltage pulses are taken from the step-up winding of the III transformer. To control the operation of the blocking generator, a pulse voltmeter is used, consisting of a diode detector and a DC amplifier on the V2 transistor, the load of which is a milliammeter with a scale of up to 1 ... 5 mA.

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Details. Transistors of the type MP40-MP42, MP25, MP20, MP21 with any letter indices; resistors type MLT-0,125; the transformer is made on the core W12 x 12; winding I contains 60 turns, winding II - 250 turns, winding III - 1200 turns of PEL-0,1 wire. The grid conductors are stretched in the form of two combs inserted one into the other and connected to the device with a two-wire cord. The distance between the conductors of the grid is selected so that the bee can touch two conductors at the same time.

The adjustment is reduced to the selection of the resistor R2, so that when the generator is operating together with a connecting wire up to 20 m long and the grid of the device, the arrow of the device is in the center of the scale. With the help of connectors Ш1...Ш6 and switch S1, the voltage is switched to different hives.

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