ionization electrometer

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• Electrometer — 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… …   Wikipedia

• Ionization chamber — An ionization chamber is a device used for two major purposes: detecting particles in air (as in a smoke detector), and for detection or measurement of ionizing radiation. An ionization chamber is an instrument constructed to measure the number… …   Wikipedia

• electrometer — elec·trom·e·ter i .lek träm ət ər n any of various instruments for detecting or measuring electric potential differences or ionizing radiations by means of the forces of attraction or repulsion between charged bodies elec·tro·met·ric trə me trik… …   Medical dictionary

• Hot filament ionization gauge — Infobox Laboratory equipment name = Hot filament ionization gauge caption = Bayard Alpert hot thoriated iridium filament ionization gauge on 2.75 in conflat flange acronym = other names = Hot cathode gauge Bayard Alpert gauge uses = Pressure… …   Wikipedia

• mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …   Universalium

• Atmospheric electricity — is the regular diurnal variations of the Earth s atmospheric electromagnetic network (or, more broadly, any planet s electrical system in its layer of gases). The Earth’s surface, the ionosphere, and the atmosphere is known as the global… …   Wikipedia

• Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …   Wikipedia

• Cosmic ray — For the film, see Cosmic Ray (film). Cosmic radiation redirects here. For some background types of cosmic radiation, see cosmic background radiation and cosmic background. The energy spectrum for cosmic rays Cosmic rays are energetic charged… …   Wikipedia

• Electrostatic generator — An electrostatic generator, or electrostatic machine, is a mechanical device that produces static electricity , or electricity at high voltage and low continuous current. The knowledge of static electricity dates back to the earliest… …   Wikipedia

• History of electrochemistry — Electrochemistry, a branch of chemistry, went through several changes during its evolution from early principles related to magnets in the early 16th and 17th centuries, to complex theories involving conductivity, electrical charge and… …   Wikipedia

• Museum Boerhaave — Established 1931 [1] Location Lange Sint Agnietenstraat 10 Leiden, Netherlands …   Wikipedia