HTX Datasheet, PDF (30/36 Pages) RMT Ltd. – Operating Manual

THERMOELECTRIC HEAT FLUX SENSORS
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
to the scheme in Fig 10.1 with use of 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
1.9 × 10^−3 × 5.8
𝑆𝑎 = _{𝑎 × 𝑁} 𝑍 × 𝐴𝐶𝑅 = _{405 × 10−6 × 59} = 0.461 𝑉/𝑊
𝜋 × 12² × 10^−6
𝑆𝑒 = 𝑆𝑎 × 𝑆 = 0.461 ×
4
= 52.1 𝜇𝑉/𝑊
The calibration results are close to the Sensor standard Specification
(Chapter 2).
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