D.E.V.I.C.E. is an encyclopedia of terms used by manufacturers of test and measurement equipment. T&M Atlantic created this service to better explain the functionality of instruments it offers, and to highlight the latest developments in the world of measurement equipment. We are using such tools as animation to bring words and pictures to life and to create not just an understanding but also an appreciation for technology that goes into the design of every instrument.
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A Swedish astronomer, talented mathematician, a professor of astronomy at Uppsala University, the first to perform and publish careful experiments aiming at the definition of an international temperature scale on scientific grounds.
French physicist. He was best known for developing Coulomb's law, the definition of the electrostatic force of attraction and repulsion. The SI unit of electric charge, the coulomb, was named after him.
A Dutch-German-Polish physicist, engineer, and glass blower who is best known for inventing the alcohol thermometer (1709) and the mercury thermometer (1714), and for developing a temperature scale now named after him.
An American scientist who while building electromagnets discovered the electromagnetic phenomenon of self-inductance, discovered mutual inductance, also he is an inventor of the electric doorbell (1831) and relay (1835).
A German physicist who clarified and expanded James Clerk Maxwell's electromagnetic theory of light, which was first demonstrated by David Edward Hughes using non-rigorous trial and error procedures. Hertz is distinguished from Maxwell and Hughes because he was the first to conclusively prove the existence of electromagnetic waves by engineering instruments to transmit and receive radio pulses using experimental procedures that ruled out all other known wireless phenomena. The scientific unit of frequency — cycles per second — was named the "hertz" in his honor.
An English physicist, born in Salford, Lancashire. Joule studied the nature of heat, and discovered its relationship to mechanical work. This led to the theory of conservation of energy, which led to the development of the first law of thermodynamics. The SI derived unit of energy, the joule, is named after him.
Jack St. Clair Kilby (November 8, 1923 – June 20, 2005) was an American electrical engineer who took part in the realization of the first integrated circuit while working at Texas Instruments (TI) in 1958.
He is also the inventor of the handheld calculator and the thermal printer, for which he has patents. He also has patents for seven other inventions.
Scottish mathematical physicist. His most prominent achievement was to formulate a set of equations that describe electricity, magnetism, and optics as manifestations of the same phenomenon, namely the electromagnetic field. Maxwell's achievements concerning electromagnetism have been called the "second great unification in physics", after the first one realised by Isaac Newton.
A German physicist. As a high school teacher, Ohm began his research with the recently invented electrochemical cell, invented by Italian Count Alessandro Volta. Using equipment of his own creation, Ohm determined that there is a direct proportionality between the potential difference (voltage) applied across a conductor and the resultant electric current. This relationship is now known as Ohm's law.
Count Alessandro Giuseppe Antonio Anastasio Volta was an Italian physicist known especially for the invention of the battery in 1800. Volta also studied what we now call electrical capacitance, developing separate means to study both electrical potential (V) and charge (Q), and discovering that for a given object they are proportional. This may be called Volta's Law of capacitance, and likely for this work the unit of electrical potential has been named the Volt.
A Scottish inventor and mechanical engineer whose improvements to the Newcomen steam engine were fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world.
A mathematical physicist and engineer. At the University of Glasgow he did important work in the mathematical analysis of electricity and formulation of the first and second laws of thermodynamics, and did much to unify the emerging discipline of physics in its modern form.
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This universal gadget converts 10 types of measurement units: Length, Weight, Temperature, Volume, Area, Speed, Time, Pressure and Energy.
It is easy to use and is available in English and Spanish.