FLAT SURFACE TEMPERATURE PROBE INFLUENCE ON TEMPERATURE MEASUREMENT |
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| Gaber Beges, Janko Drnovšek |
- Abstract:
- This paper deals with the influence of the flat surface temperature probe measuring temperature. Different measurement approaches for measuring surface temperature are possible. For the purpose of safety testing of household appliances surface temperature measurements are very important. General requirements are presented in European standards, which support requirements in European Low Voltage Directive 2006/95/EC. Paper introduces comparison of temperature measurement between attached thermocouple on the measured surface and measurement with flat surface temperature probe. As a heat generator an oven and a temperature artefact are used. Probes and thermocouples are applied to the surface in horizontal and vertical position, using also different force for application of probes. Reference temperature was measured by J-type fine-wire (0.2 mm) thermocouple. Two probes were homemade according to requirements in [2], but one with fine-wire (0.2 mm) thermocouple and one with 0.5 mm of thermocouple wire diameter. The third compared probe was a commercial one not in accordance with the standard requirement for dimensions. Results showed that only probe with fine-wire thermocouple can be used for the measurement of surface temperature. It's deviation from the reference thermocouple attached to the surface was the lowest. The other probes also influenced the unit measured so that the temperature dropped.
- Keywords:
- surface temperature, testing, contact probe
- Download:
- IMEKO-WC-2009-TC12-406.pdf
- DOI:
- -
- Event details
- Event name:
- XIX IMEKO World Congress
- Title:
Fundamental and Applied Metrology
- Place:
- Lisbon, PORTUGAL
- Time:
- 06 September 2009 - 11 September 2009