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THERMOELECTRIC HEAT FLUX SENSORS

Page 30 of 36

9.3 Equipment

Use the series of Z-Meters made by RMT for measurement of Figure-of-

Merit and ACR resistance of thermoelectric Heat Flux Sensor. You can also

use the Datalogger DX8140 series developed for the HTX, HFX series of

Heat Flux Sensors.

9.4 Example

Heat Flux Sensor type HDT04-059-08D12 was obtained with Specification

where were listed the following:

Diameter

- 12 mm

Number of pellet pairs - 59

Seebeck coefficient,  - 405 (at 300K), V/K

The measurements of thermoelectric performance parameters according

the

scheme

Fig

10.1

with

use

Z-Meter

DX4090

(http://rmtltd.ru/products/devices/testers/zmeters/) gives the following:

Figure-of-Merit , Z

- 1.9x10

-3, K-1

ACR

- 5.8 Ohm

Both are referred to T0=300K.

According to formulas (10.3) and (10.4)

�� =

�� × ��

�� × �� =

1.9 × 10−3 × 5.8

405 × 10−6 × 59

= 0.461 ��/��

�� = �� × �� = 0.461 ×

�� × 122 × 10−6

= 52.1 ��/��

The calibration results are close to the Sensor standard Specification

(Chapter 2).

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