Conductivity of Liquids and Gases Appratus:
Features of Conductivity of Liquids and Gases Appratus:
Technical details of Conductivity of Liquids and Gases Appratus:
The unit comprises a cylindrical, electrically heated, nickel-plated aluminium core surrounded by a nickel-plated aluminium sleeve. The core and the sleeve are arranged so that a uniform narrow annular gap is created between the two parts, which is filled by the liquid or gas to be analysed.
The temperature on each side of the fluid is measured by thermocouples in the surface of the core and the sleeve. adds an electronic proportioning valve and flow meter to vary and measure the flow using. Both versions incorporate an insulated jacket to minimise heat exchange from and to the atmosphere.
The fluid to be tested is injected into the annular gap between the heated core and the cooled jacket using a hypodermic syringe. Measurement of the temperature difference between the heated and cooled surfaces together with the power supplied to the heater (measurement of DC voltage and current) using allows the conductivity of the fluid to be calculated. The surface area and thickness of the fluid sample remain constant during all tests.