moving-coil galvanometer
51Oscilloscope history — This article discusses the history and gradual development of the Oscilloscope. Contents 1 Hand drawn oscillograms 2 Automatic paper drawn oscillograph 3 Photographic oscillograph 4 …
52Ammeter — Amperemeter redirects here. For the unit of measurement, see Ampere meter. Demonstration model of a moving iron ammeter. As the current through the coil increases, the plunger is drawn further into the coil and the pointer deflects to the right …
53Potentiometer (measuring instrument) — A potentiometer is an instrument for measuring the potential (voltage) in a circuit. Before the introduction of the moving coil and digital volt meters, potentiometers were used in measuring voltage, hence the meter part of their name. The method …
54Peak programme meter — A typical British quasi PPM. Each division between 1 and 7 is exactly four decibels and 6 is the intended maximum level. A peak programme meter (PPM) is an instrument used in professional audio for indicating the level of an audio signal. There… …
55Protective relay — See also: Power system protection In electrical engineering, a protective relay is a complex electromechanical apparatus, often with more than one coil, designed to calculate operating conditions on an electrical circuit and trip circuit breakers …
56William Duddell — Duddell s devices …
57Oscar/Technische Verdienste — Der Oscar für technische Verdienste (Academy Technical Achievement Award) ist eine seit 1931 vergebenene Auszeichnung der Academy of Motion Picture Arts and Sciences und würdigt herausragende Leistungen auf dem Gebiet der Verbesserung technischer …
58Full scale — In electronics and signal processing, full scale or full code represents the maximum amplitude a system can present. Electronics and signal processing In digital systems, a signal is said to be at digital full scale when it has reached the… …
59Galvanometre — Galvanomètre Un galvanomètre est l un des modèles d ampèremètre de type analogique. L appareil est muni d une aiguille permettant de visualiser la mesure. L aiguille est chargée d amplifier visuellement un mouvement, elle permet la lecture… …
60electric meter — Synonyms and related words: VOM, VTVM, ammeter, ampere hour meter, coulometer, dynamometer, expansion ammeter, faradmeter, galvanometer, hysteresis meter, magnetometer, megohmmeter, mhometer, milliammeter, moving coil meter, ohmmeter,… …
