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Showing posts from November, 2022

Displacement Transducer: LVDT

Displacement Transducer A Displacement Transducer is an electromechanical device used to convert mechanical motion or vibrations, specifically rectilinear motion, into a variable electrical current, voltage or electric signals, and the reverse. Actuating mechanisms used primarily for automatic control systems or as mechanical motion sensors in measurement technologies. The classification of electromechanical transducers includes conversion principles or types of output signals. Conversion Principles: Electromagnetic Magnetoelectric Electrostatic Inductive Output Signals: Analog and discrete output Digital Evaluating Electromechanical Transducers: Static and dynamic qualities Sensitivity or transfer ratio - E=Δy / Δx or Δy is the change in output quantity y when input quantity x is changed by Δx Output signal—range of operating frequency Static error of conversion or of the signal What is a Displacement Transducer (DT)? Linear Transducer: A device that provides voltage output quantity,...

Transducer: Characteristics, Classification and selection

Transducer: Characteristics, Classification and selection   T ransducer (s) have become an integral part of our lives today. It is used to convert one form of energy into another. Such an energy conversion can be in the form of electrical, mechanical, magnetic, thermal or optical. It can also be visualized as having two ports where the exchange of energy occurs with the environment. This article discusses what is Transducer, its characteristics, types, applications, factors influencing the choice of a transducer and its future. It also looks into what makes an ideal transducer. What is a Transducer Any electrical/ electronic/ electro-mechanical device that converts one form of energy to another is called a Transducer. Some examples include Loudspeakers, Microphones, antennas, Thermometers, Pressure Sensors and Position Sensors. Although not considered transducers in the true sense, LEDs, photocells and common light bulbs also work as transducers. Efficiency is very important for an...

Digital Energy Meter

Digital Energy Meter What Is a Digital Energy Meter? An electric meter or energy meter is an essential device that goes with the consumption of commercially distributed energy. It enables systematic pricing of energy consumed by the individual consumers as it measures the amount of electrical energy consumed by a residence, business, or an electrically powered device [1]. They are typically calibrated in billing units, the most common one being the Kilowatts hour, which is equal to the amount of energy used by a load of one kilowatt over a period of one hour, or 3,600,000 joules. Some meters measured only the length of time for which charge flowed, with no measurement of the magnitude of voltage or current. These were only suited for constant-load applications. Neither type is likely to be used today. In addition to metering based on the amount of energy used, other types of metering are available. Meters which measured the amount of charge (coulombs) used, known as ampere-hour meters,...

Power Quality Analyzer

  Power Analyzer: Circuit Diagram & Its Working Power Analyzer  is the tool used to monitor the power quality. The rate of transfer of electricity in an electric circuit is known as Electric power. Electric power is measured in watts – joules per second in S.I units. There are various means to generate power. The  power  we utilize in our homes is usually produced by electric  generators  and supplied to homes, industries through the electric power grid. This task is done by the electric power industry. Unwanted variation in power quality could lead to breakdown or cause damage to sensitive equipment. Hence, it is crucial to monitor power quality frequently. What is Power Analyzer? A power analyzer, also known as a power quality analyzer, is the equipment used to monitor the power quality in devices. Power quality is usually understood as the compatibility between a power/electric source and load plugged in so that the load could function properly. When...