Pearce, J (2016) EMPRESS: A pan-European project to enhance manufacturing process efficiency through improved temperature control. Meas. Control, 49 (8). pp. 252-255.

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Abstract

High value manufacturing depends on reliable temperature control, for example in the aerospace sector accurate, traceable temperature measurement is essential for applications up to and above 1300 °C such as casting, forming, forging and heat treatment. In general there is a requirement for more stable sensors and standardisation of at least one new thermocouple type to fill the gap between 1500 °C and 1800 °C. Above 1800 °C only W-Re thermocouples are widely available but their erratic performance renders them very unsatisfactory for long-term measurement. At lower temperatures below 500 °C, forming of metal and composites requires tight temperature control which is challenging, and current measurement methods, particularly surface thermometry methods, are limiting the uptake of new, more efficient materials process technology. Measurement of flame temperature is extremely difficult and prone to large errors; for example, thermocouple measurements of flame temperatures can be in error by hundreds of degrees. In the latter case what is required is a portable `standard flame¿ whose temperature is traceably calibrated, which may be used to calibrate combustion sensors or measurement methods used in the field.
This article describes a project funded by the 2014 Industrial call of the European Association of National Metrology Institutes (EURAMET) scheme `European Metrology Programme for Innovation and Research' (EMPIR). The project is entitled 'enhanced process control through improved temperature measurement' (EMPRESS) and is led by the UK's National Physical Laboratory (NPL).

Item Type:	Article
Keywords:	EMPRESS, high value manufacturing, temperature metrology, thermocouples, phosphor thermometry, combustion thermometry, flame thermometry, HTFP, high temperature fixed points
Subjects:	Engineering Measurements Engineering Measurements > Thermal
Identification number/DOI:	10.1177/0020294016656892
Last Modified:	02 Feb 2018 13:13
URI:	https://eprintspublications.npl.co.uk/id/eprint/7343