Лабораторные работы / Решенная лабораторная по физике 24

The laboratory work N^o 24.

Graduating of the thermopare.

Had done by the student gr.__220171я__ F.N.S. Pavlov F.E.

Checked by ______________________ date ____________

Purpose:

Graduate a thermopare and define its own specific thermoelectromotive force.

The order of performing a work:

1. Define by the thermometer a temperature t_a = 20⁰.

2. Switch on the device. Heating the junction to measure the value ’_T at any 5⁰ C to measure the value ’_T .

3. The junction is heating at the temperature 80⁰ C to switch off the device and to measure the value ”_T at any 5⁰ C.

4. For all meanings of the temperatures to calculate an average meaning and to construct the plot of the dependence _T from t = t- t₁.

5. To calculate a value of the thermoelectromotive force by the formula .

Table N^o1.

No	ta ,0C	t =( ta- tb) ,0C	h , mV	0 , mV	<>, mV
1	25	5	17	10
2	30	10	21	13
3	35	15	35	15
4	40	20	45	24
5	45	25	48	33
6	50	30	50	38
7	55	35	53	45
8	60	40	55	46
9	65	45	56	50
10	70	50	57	55
11	75	55	58	57
12	80	60	59	59

Conclusion:

So we have graduate a thermopare and define its own specific thermoelectromotive force.

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