Rotary potentiometer Measuring devices (rotameter) is the flow (flow measurement) that can be used to measure the flow of both liquids and gases. General structure of a rotary potentiometer consists of a tubular glass appearance is conical in vertical position. Inside the float (the float) that can scroll up scroll down freely according to the flow rate of a fluid. In General, the float is made from brass, stainless steel or a special type of plastic. The float is inside the Rotary potentiometer has many shapes. There is no point reading shown on the float. Design according to the features of flow measuring flow and measure such as flow rate (range), round float is suitable for measuring flow rate in low-speed neighborhood. For other shapes are suitable for the use of each job varies. Most use a float with the edges to create a whirling flowmeter. (turbulent flow)General cone pipe made from clear glass so that you can observe the movement of the float clearly. Rotary-type meter which is the durability of the glass tubes, depending on the conditions used by the durability of the glass tubes will decrease or crack easily under pressure conditions (pressure), high temperature (temperature), so in some cases it may not be used for glass pipe special design tubes, metal, or in applications that can not be read directly from the float may use rotary meter with a measuring level (level measurement) or mobile phase (displacement measurement) of the float by calibration (calibration), mobile phase measured with the value of the flow rate that occurred.
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