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Which thermocouple will have the shortest time constant?

a.) Sheathed 0.125-inch diameter Ty-type thermocouple
b.) Sheathed 0.25-inch diameter T-type thermocouple
c.) 30-gage T-type thermocouple with an exposed junction
d.) Sheathed 0.25-inch diameter K-type thermocouple

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Answer:

that option c is the one with the smallest time set by this exposed and give a smaller diameter

Step-by-step explanation:

The thermocouple is the union of two different metals that, due to temperature differences between their points, create a voltage difference. This system has a time or response due to the mobility of electrons and thermal conductivity from the point where the temperature is generated to the point where the metal is; In general, the most important effect is thermal conductivity.

The thermal conductivity is the time it takes for the temperature to die in a system, the more insulation there is, the longer the time in this case is the jacket with its insulator, but this system protects the thermocouple from deterioration

Another element is the diameter of the cables the thicker they are, the greater the thermal conductivity and response time.

When reviewing the different statements we can see that option c is the one with the smallest time set by this exposed and give a smaller diameter

User Andy Madge
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