Alco Sensor
what is an alco-sensor test, and how does it work/ ?
I KNOW IT TEST FOR ALCOHOL,BUT HOW DOES IT WORK AND HOW LONG DOES IT WORK FOR?
The device uses modern fuel-cell technology. The fuel cell has two platinum electrodes with a porous acid-electrolyte material placed in between them. When exhaled air flows past one side of the fuel cell, the platinum oxidizes any alcohol in the air to produce acetic acid, protons and electrons.
The electrons flow through a wire from the platinum electrode. The wire is connected to an electrical-current meter and to the platinum electrode on the other side. The protons move through the lower portion of the fuel cell and combine with oxygen and the electrons on the other side to form water. The more alcohol that becomes oxidized, the greater the electrical current. A microprocessor measures the electrical current and calculates the BAC.
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