A small oscilloscope necessary to balance the bridge is NOT included in the supply. The filament heating circuit voltage does not exceed 12V and the system has an isolated mains transformer. It is self contained and built into a high quality instrument case designed for bench mounting with the experiment easily visible. A second vessel with cooling system accommodates the second arm of the bridge, a variable voltage supply for filament heating, the AC bridge circuit, a panel mounted ammeter and voltmeter, switch gear, electrical stirring system and a 0-105ºC thermometer. It consists of the heat proof glass observation vessel containing the liquid and housing the nickel filament whose length and diameter can be measured, together with an additional low voltage heating element for rapid warm up.
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The computerized version unit allows, thanks to the electronic transducers and suitable software, to display on personal computer and/or print the tables of results and diagrams of the various experiments. The Computerized Boiling Heat Transfer Apparatus has been designed to perform experiments concerning heat transfer due to convection in a boiling liquid (water). The second leg of the bridge is used to balance the nickel wire and is immersed in a cooling vessel filled with water. The unit is supplied with manuals that describe each component of the system, installation and utilization procedures, and gives many exercises. The unit consists of a vessel containing a quantity of water continuously stirred and heated by a nickel filament. Since this wire is a leg of an alternate current bridge, the temperature can be measured very accurately.
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