BACtrack S80 Specifikace stáhnout pdf (Strana 57)

Figure 2.10-3: MR-513 Gas Sensor. Reproduced with permission granted by

Futurlec.com

The cost of this model, MR-513 is twice as much as the previous model, MQ-3.

Which is at the cost of around $12, not a big disadvantage for its extra guarantee

in its reliability and sensitivity, because of its MR-513 Gas Sensor WheatStone

Bridge Design shown in figure 2.10-4. MR-513 poses similar working

temperature and other criteria as MQ-3 as well.

Figure 2.10-4. Reproduced with the permission of Futurlec.com

Fuel Cell Sensors

As mentioned earlier that the new and uprising technology in detecting blood

alcohol content is the fuel cell sensors, which is made to succeed the inferior IR

(Infrared Radiation) technology used in the 1980’s and semi conductor sensor,

unfortunately due to its higher price, semi-conductor sensors remain the most

widely used for alcohol content detection. Due to the reason that this category of

sensor and technology are new to the market, detail of how it operate will be

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BACtrack S80 Specifikace Strana 57