Difference between Pneumatic, Electrical & Hydraulic Actuators

Major Difference between Pneumatic, Electrical & Hydraulic Actuators. Read about Pneumatic Actuators, Electrical Actuators & Hydraulic Actuators. Pneumatic Actuators A pneumatic control valve actuator converts energy (typically in the form…

Spring and Diaphragm Pneumatic Actuators

Spring and diaphragm pneumatic actuators can be "direct-acting", meaning that air to the diaphragm casing pushes the actuator stem downward. This "air-to-close" action compresses the spring, which in turn pushes…

Encoder Working Principle

Encoders are used to translate rotary or linear motion into a digital signal. Usually this is for the purpose of monitoring or controlling motion parameters such as speed, rate, direction,…

Operation of Zener Diode Voltage Regulator

A rectifier with an appropriate filter serves as a good source of d.c. output.  However, the major disadvantage of such a power supply is that the output voltage changes with…

pi filter Operation

The below Fig shows a typical capacitor input filter or Ï€- filter. It consists of a filter capacitor C1 connected across the rectifier output, a choke L in series and another…

Choke Input Filter Operation

The below Fig. shows a typical choke input filter circuit.  It consists of a Choke L connected in series with the rectifier output and a filter capacitor C across the load.…

Capacitor Filter Operation

Capacitor filter.  Fig. shows a typical capacitor filter circuit.  It consists of a capacitor C placed across the rectifier output in parallel with load RL. The pulsating direct voltage of the…

What is a Filter Circuit ?

Generally, a rectifier is required to produce pure d.c. supply for using at various places in the electronic circuits. However, the output of a rectifier has pulsating character i.e. it…

Laser Level Measurement Principle

The least-common form of echo-based level measurement is laser, which uses pulses of laser light reflected off the surface of a liquid to detect the liquid level. Perhaps the most…

Argonite Fire Suppression System Working Principle

Argonite is a composite gas that consists of 50% Nitrogen and 50% Argon. The gas is mixed and stored under pressure. The composite is completely inactive and is not involved…