1) Я правильно понимаю, что в фотометрических газоанализаторах (поглощение разными газами волн разной длины) это называется термостат? (http://docs.cntd.ru/document/gost-r-mek-61207-6-2010)

Например, есть H2S/CO2 ANALYZER

The analyzer is comprised of a Xenon Flash Lamp light source, a lens and aperture, a Measuring Cell, a diffraction grating, front surfaced focusing mirror, and a detector array, as indicated in Figure 1-1. The Measuring Cell is contained within the Oven/Sample System Enclosure... The sample system is contained within an attached but separate, insulated enclosure (Oven/Sample System Enclosure). If this enclosure is heated, components within this enclosure are specified to operate at temperatures of up to 150 °C.

2) Как лучше назвать эту часть в измерителе числа Воббе, который работает по следующему принципу:

The measurement principle of the Hobré Instruments Wobbe Index analyser is based on the measurement of residual oxygen after catalytic combustion of the flare or fuel gas. A small sample flow is mixed continuously with dry air in a constant fixed ratio. This ratio depends on the gas composition and is determined on a case by case basis. Using an electrical heated catalytic oven the air-fuel mixture is fully burned at a temperature of approximate 812°C. The residual oxygen is measured by a highly accurate and reliable oxygen sensor. The oxygen sensor used is a Zirconium oxide (ZrO2) cell. The measured residual oxygen content provides an accurate measurement of the Combustion Air Requirement and correlates well to the Wobbe Index of the gas.

Спасибо.