Temperature Measurement and Control

The key to testing at elevated temperatures is the confidence in the temperature measurement and control. The objective is to meet the demands of the relevant product or international standard, or alternatively to replicate the "in service” conditions as accurately as possible.

Phoenix is familiar with the challenges of validating and calibrating temperature measurements as we have UKAS accreditation for testing at temperatures up to 1500°C.

One of the key considerations is the maximum target temperature and the rate at which you want to heat and cool your samples, this will help to guide your choice of heating technology.

If you have an elevated temperature testing requirement and would like any further information or advice, please contact us.

Traditional furnaces

  • Single or three zone options
  • Split or tubular design
  • Limited heating profile due to furnace windings
  • Temperatures up to 1200°C
  • Good temperature uniformity on conventional samples
  • Difficult to operate in different atmospheres
  • Slow heating and cooling rates compared to other alternatives
  • Can directly heat any type of material

Infrared emitters

  • The number of emitters can be varied from one upwards
  • The shape and arrangement of the emitters can be varied, with brackets designed to suit the sample and temperature profile required
  • Suitable for testing up to 900°C
  • Uniform or non-uniform temperature profile across the sample or component as required
  • Can operate in a range of atmospheres
  • Rapid heating and cooling rates
  • Can directly heat any type of material

Induction heating

  • Traditionally used with a single coil
  • The shape of the coil can be adjusted to suit the sample and temperature profile required
  • Suitable for testing up to 3000°C
  • Uniform or non-uniform temperature profile across the sample or component as required
  • Can operate in a range of atmospheres
  • Rapid heating and cooling rates
  • A susceptor can be used to heat non-metallic or non-uniform samples
  • In addition to the method of heating, temperature measurement can be carried out in a number of ways including Thermocouples, Thermography and Pyrometry. The correct type of measurement system will depend upon the temperature range, sample material, geometry and test atmosphere.

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