impedance measuring device
1Electrical impedance — Electromagnetism Electricity · …
2Nominal impedance — in electrical engineering and audio engineering refers to the approximate designed impedance of an electrical circuit or device. The term is applied in a number of different fields, most often being encountered in respect of: The nominal value of …
3Residual-current device — A two pole residual current device A Residual Current Device is a generic term covering both RCCBs and RCBOs. A Residual Current Circuit Breaker (RCCB) is an electrical wiring device that disconnects a circuit whenever it detects that the… …
4Insulation monitoring device — An insulation monitoring device monitors the ungrounded system between an active phase conductor and earth. It is intended to give an alert(light and sound) or disconect the power supply when the impedance between the two conductors drops below a …
5Glass electrode — A glass electrode is a type of ion selective electrode made of a doped glass membrane that is sensitive to a specific ion. It is an important part of the instrumentation for chemical analysis and physico chemical studies. In modern practice,… …
6Q meter — A Q meter is a piece of equipment used in the testing of radio frequency circuits. The Q meter has been largely replaced in professional laboratories by other types of impedance measuring device, though it is still in use among radio amateurs. A… …
7Electrometer — An electrometer is an electrical instrument for measuring electric charge or electrical potential difference. There are many different types, ranging from historical hand made mechanical instruments to high precision electronic devices. Modern… …
8ear, human — ▪ anatomy Introduction organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium). The human ear, like …
9acoustics — /euh kooh stiks/, n. 1. (used with a sing. v.) Physics. the branch of physics that deals with sound and sound waves. 2. (used with a pl. v.) the qualities or characteristics of a room, auditorium, stadium, etc., that determine the audibility or… …
10Class of accuracy in electrical measurements — In electrical engineering class of accuracy is a figure which represents the error tolerance of a measuring device. Contents 1 Measurement …
