Principle of Flow Switch
Principle of Flow Switch – It uses “paddles” as a flow-sensing element which actuates switch contacts to identify the required flow rate.
Temperature Switch Principle
A temperature switch is one detecting the temperature of some substance. Temperature switches often use bimetallic strips as the temperature-sensing
Ultrasonic Level Switch Principle
Yet another style of electronic level switch uses ultrasonic sound waves to detect the presence of process material (either solid
Paddle Wheel Level Switch Principle
A more primitive variation on the theme of a “tuning fork” level switch is the rotating paddle switch, used to
Tuning Fork Level Switch Principle
Tuning Fork Level Switch uses a metal tuning fork structure to detect the presence of a liquid or solid (powder
Float level switch Principle
Some level switches use a float to sense the level of a liquid surface, actuating an electrical switch by the
Capacitive Level Switch Principle
Another electronic liquid level switch technology is capacitive: Sensing level by changes in electrical capacitance between the switch and the
Basics of Pressure switches
A pressure switch is one detecting the presence of fluid pressure. Pressure switches often use diaphragms or bellows as the
Basics of Limit switches
A limit switch detects the physical motion of an object by direct contact with that object. An example of a
Conductive Level Switch Principle
Perhaps the simplest (and oldest) form of electrical level detection is where a pair of metal electrodes contacts the process