Mikron blackbodies & calibration sources

A blackbody calibration source serves as a highly precise reference radiator for calibrating and verifying non-contact temperature measuring instruments such as Mikron pyrometers, thermal imaging cameras, and radiometric systems. Technically speaking, it is a temperature-controlled radiation emitter with defined emissivity, providing stable and reproducible infrared radiation – a key element in accurate temperature measurement.

Mikron blackbodies – including high temperature blackbody calibration source models and portable systems – are available exclusively through Acal BFi, the authorised Solution Provider for Advanced Energy. Integration is seamless within existing systems, supported by expert consultancy, support, and configuration options.

Mikron offers temperature calibration sources to suit virtually every need: from compact blackbody source models for ≤150 °C, to mid-range black body calibration source units (up to 1150 °C), and on to high-temperature systems reaching 3000 °C and beyond. A prime example is the M390 series – designed specifically for applications requiring maximum performance from an infrared calibration source.

With pyrometric calibration, the temperature of the blackbody calibration is determined using a transfer-standard pyrometer (such as the IS 12-TSP). Put simply, this results in an effective emissivity (ε_eff) set to 1. In contrast, thermometric calibration uses contact measurement via a high-precision RTD sensor embedded in the emitter – here, the actual emissivity (ε) is typically lower than 1. In many cases, it is worth taking a second look at the spectral coverage and calibration accuracy.

Mikron blackbody calibration sources are renowned for their exceptional precision. Depending on the model, temperature uncertainty typically ranges between ±0.25% and ±1 °C. Not least for this reason, regular ITS‑90 traceable validation – using tools such as the Mikron pyrometer IS 12-TSP with a resolution of 0.01 °C – is essential for high-end applications.

Emissivity is a critical factor in any infrared blackbody calibration. Mikron models offer near-ideal values (ε_eff ≈ 1), ensuring reliable calibration even across different spectral bands. Particular emphasis is placed on uniform emission surfaces, allowing consistent results even for small spot sizes.

Mikron blackbody calibration sources are ideal for a wide variety of systems, including Mikron thermal cameras, Mikron thermal imaging cameras, as well as spectroscopic and heat-flux-based measurement systems. The design consistently reflects functional requirements – whether as a mobile calibrator for field use or as a fixed unit for inline verification.

A high temperature blackbody calibration source becomes essential when calibrating pyrometers used in extreme thermal environments (>1500 °C) – such as metallurgy, semiconductor processing or additive manufacturing. This is where detail matters: fast heat-up times, minimal drift and maximum thermal stability. The Mikron M390 series is purpose-built for precisely these conditions.

Long-term stability is achieved through high-grade materials, controlled manufacturing processes, and extended burn-in periods. At the end of the day, one thing matters most: reliability. That is why every Mikron black body source is delivered with a calibration certificate confirming full traceability to the international ITS-90 temperature scale.

To begin with, selection depends heavily on the measurement device and application: measurement spot size, required temperature range, portability, control capabilities, and emissivity. Mikron offers an extensive portfolio – from the portable black body calibration source M316 to the precision-cooled M345X-LC. The result is a clear advantage in environments requiring integrative and adaptable solutions.