Chemostimulator Local

The “Local” chemostimulator is a hardware-software complex and includes a special unit – a chemoindicator. This block is designed to visually display chemically hazardous substances (CHS) in various environments. The use of this complex is based on the property of some organisms to be excited in an electric field, including when the concentration and partial pressure of hazardous substances changes. This phenomenon is called "toxic localization". The “Local” chemical stimulator, in contrast to the “Quick” and “Acoustic” chemical stimulators, is based on the method of excitation of test organisms only by an electric field.

The chemical stimulator works on the principle of direct current detectors, but differs from them in that it does not have a mechanism for generating direct current through ozone, and its concentration in the air is maintained constant. The fact is that operating conditions can have a strong influence on the generation of the electric field in detectors. The magnitude, generation period and shape of the output signal strongly depend on the method of manufacturing the detector. When the detector is mounted on a metal rod, as is done in the Kwik chemical stimulator, the charge shielding effect on the microcation leads to a significant change in the generator. Chemostimulator "Local" and with a remote detector solves the problem of the shielding effect in such a way that the detector body is in a homogeneous air environment. To eliminate potential instability of the test object, the generator is enclosed in a sealed shell filled with dry air.

The “Local” chemical stimulator modulation unit is also placed in a dielectric protective glass, which acts as an insulator of the detector body from the environment. Thus, the details of the internal structure of the modulation unit are protected from the influence of external factors, which contributes to high stability of output signals and sensitivity. In addition, this eliminates the possibility of incorrect use of the device in the event of spontaneous vibrations of the mechanical elements of the detector or generator components. Electrical impulse