At the end of this module, you will be able to:
- 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
The following key questions are answered in this module:
What is the purpose of a fastener?
Fasteners are used to connect two or more objects together mechanically.
What are some common types of screws?
Wood screws, shet metal screws, machine screws, and socket screws are the most common types of screws.
How are bolts different from screws?
Bolts are threaded fasteners like screws, but they're held in place by either a nut or a threaded hole on the other side.
How are screws and bolts measured?
Regular screws are measured from just under the head to the end of the screw, but a countersunk fastener is measured from end to end.
What is torque?
Torque is a force that causes a change in rotational motion around an axis. A torque wrench is used to apply a specified amount of torque to a fastener.
Below is a transcript of the video sample provided for this module:
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.
Use the additional resources and links below to learn more about this topic: