FIELD: analytical chemistry. SUBSTANCE: analyzer of paramagnetic gases includes electromagnet fed by current pulses, temperature-sensitive element placed in magnetic field in thermomagnetic cell and temperature-sensitive element. For elimination of effect of induction from pulse magnetic field of electromagnet temperature-sensitive element is fed by current pulses with frequency higher than supply frequency of electromagnet. Additional high-frequency amplifier and synchronous high-frequency detector are positioned in front of unit isolating and detecting variable low-frequency component of signal of thermomagnetic convection. EFFECT: increased accuracy of analysis thanks to elimination of influence of emf induced in sensitive element and caused by effect of pulse magnetic field. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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