Flow, Level, and Pressure Sensors
Flow measurement devices, or flow sensors, measure the volume of a liquid or gas that passes through a container in a given amount of time. This course discusses the common flow, level, and pressure sensor designs as well as defines common industry terms such as “turndown ratio,” “psi,” and “atmospheric pressure.”
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Course Details
Learning Objectives
• Identify and describe common flow sensor designs
• Distinguish between differential producing flow meters and linear flow meters
• Define “turndown ratio”
• Differentiate between point level sensors and continuous level sensors
• Identify and describe common level sensors
• Define “psi” and “atmospheric pressure”
• Identify and describe common pressure sensors
Specs
Frequently Asked Questions
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Sample Video Transcript
Solids that flow and conform a level surface in a container are either powder or granular in nature. Two common point level sensors for solids are the vibrating probe and the rotating paddle. The vibrating probe consists of a vibrating rod. When the rod comes in contact with the surface of the material, the vibration changes. This change is detected and a switch is activated. In the rotating paddle sensor, a small motor rotates paddles at the desired level. When the level of the material reaches the paddles, their rotation is stopped. This causes the motor to stall and activates a switch.
