Magnetic Circuits
Magnetic Circuits A magnetic circuit can be compared with an electric current in which EMF, or voltage, produces a current flow. The ampere-turns (NI), or the magnetomotive force (Fm or…
Magnetism
Certain metals and metallic oxides have the ability to attract other metals. This property is called magnetism, and the materials which have this property are called magnets. Some magnets are…
Methods of Producing Voltage (Electricity)
This article provides information on the following methods of producing electricity: Electrochemistry Static (friction) Induction (magnetism) Piezoelectric (pressure) Thermal (heat) Light Thermionic emission Electrochemistry Chemicals can be combined with certain…
Units of Electrical Measurement
Using Ohm’s Law and the System Internationale (SI) Metric System, electrical measuring units can be derived. The following electrical parameters, including the unit of measurement and the relationship to other…
Conductor, Insulator, Resistor and Current Flow
Knowledge of key electrical terminology is necessary to fully understand principles in electrical theory. The following are key terms: Conductor Insulator Resistor Electron current flow Conventional current flow Direct current…
What is Electricity ?
What is electricity? Electricity is defined as "the flow of electrons through simple materials and devices" or "that force which moves electrons." Scientists think electricity is produced by very tiny…
Remote Seal Transmitters Temperature Error
Calculation of temperature error for remote seals The following equation is used to calculate the temperature error for remote seals: dp = (tRS - tCal) . fRS + (tCap -…
Capillary Tubing Pressure Sensor Temperature & Elevation Problems
Capillary tubing provides a convenient method to separate a pressure instrument such as a gauge or transmitter from the actual process connection, allowing the instrument to be installed in a…
Effects of Symmetric and Asymmetric Capillary Tube Pressure Measurement
Symmetric capillary 1. Seal Effect: If the ambient temperature increases the capillary volume V will tend to exert forces on the DP seal (both sides). If both capillary have the…
Heating and Mixing of Products using PLC Example Tutorial
This is a PLC Program for automatic heating and mixing of products. Learn the PLC programming with this example for engineering students.
