Instrumentation and Control: Measurement of Density Clarity and Moisture

Define the term “density.” Explain the difference between density and specific gravity. Describe the basic operation of a hydrometer. Describe the use of a bubbler system to measure density. Describe the operation of a radioactive density analyzer. Define the term “clarity.” Describe the basic operation of a colorimeter, a turbidity meter, and an opacity meter. Define the terms “humidity” and “moisture.” Describe the basic operation of a sling psychrometer. Describe the basic operation of a wet and dry bulb recording psychrometer. Describe the basic operation of a hygrometer. Describe the basic operation of an infrared moisture analyzer.