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Сотрудники кафедры
Программы курсов
Научная работа школьников
Наши достижения в 1999-2000 учебном году
Кафедра физики готовит команды для участия в:
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Электрический потенциал человека и устройство для его измерения
(Сафронов Александр)
From different sources it is known that there is a potential difference between some
points of human body. Thise difference depends on the phsiological state of man. In order
to measure this electric pressure it was necessary to
create a special devisce that satisfies to the following conditions: a big (hundreds of
MOm) resistance in input; ability
for measuring of small (tens of mV) voltage. Different schemes were concidered during the
work and some of them were refused. The most convinient one was developed on the base of
operating amplifier (microscheme) being iontroduced into special construction. After
normal operation of the device has been confirmed the measurements of electric pressure
between different parts of human body were done. The results are present for discussion.
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