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Published byDarby Leath Modified over 9 years ago
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Magnetic Suspension Balance - Layout Magnetic system Δζ zp Measuring load decoupling Sample Zero-point position Δζ mp Measuring-point position Sensor core Electromagnet Permanent magnet
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Magnetic Suspension Balance Position trasducer PID controller Set-point controller Control system PID Modulates voltage on electromagnet to held the suspension magnet in vertical position Position control system
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Magnetic Suspension Balance Cascade control Set point Sample temperature Set point resistance Thermocouple value Resistance value Temperature control system High temperature control: Up to 500 °C
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Magnetic Suspension BalanceTemperature control system Low temperature control: Below Room temperature Up to 100°C Jacket
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Sorption equipment Vacuum pump burner Gas chromatograph 8 Thermocouple 9 Pressure transducer ( 150 bar) 10 Pressure transducer ( 1000 mbar) Gas inlet : H 2 CO N 2
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Example of Sorption Isotherm PDMS-CO 2 at 35°C Legend: Exp. Data Fick law Kinetics of Sorption Sorption Isotherm
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Other applications: Thermogravimetric analysis of polymers Desorption 30°C Heating up to 120°C Legend: Study of water loss during the heating of Hyflon-Ion in hydrated state molH 2 O/molSO 3 H Weigth loss (%) Time (h) Temperature (°C) Membrane fully hydrated 30°C Evacuation at 30°C Heating Evacuation at 120°C 0 1 2 3 4 5
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