FIELD: instrument making.
SUBSTANCE: invention relates to instrument making, particularly to measurements of specific surface of dispersed and porous materials and can be used in development of measuring instruments. Proposed device incorporating temperature automatic control function comprises housing 1, adsorber 2, adsorbate (saturator) source 3, and detector 4, for example thermal conductivity detector. Proposed device comprises also adsorber thermal control device made up of casing 5, temperature pickup 6, temperature controller 7 and heater 8. Detector thermal control device consists of casing 9, temperature pickup 10, temperature controller 11, heater 12, four-way valve 13 to switch gas flows in blowdown, adsorption and desorption conditions, filter-drier 14 of pulse lines 15 and measuring unit 16. Note here that carrier gas source represents air micro compressor 17 and adsorbate (saturator) source 3 represents glass or metal vessel. Temperature pickups 6 and 10 are arranged in adsorber temperature control device and detector thermal control device, respectively, and are connected with temperature controllers 7 and 11. Note here that thermal conductivity detector 4 is connected with bridge measuring circuit of measuring unit 16.
EFFECT: reduced measurement interval, higher efficiency and safety.
3 cl, 2 dwg
