Voltmeter
Query URLs
https://term.museum-digital.de/md-de/tag/39790
- Note
- A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit. It is connected in parallel. It usually has a high resistance so that it takes negligible current from the circuit.
Analog voltmeters move a pointer across a scale in proportion to the voltage measured and can be built from a galvanometer and series resistor. Meters using amplifiers can measure tiny voltages of microvolts or less. Digital voltmeters give a numerical display of voltage by use of an analog-to-digital converter.
Voltmeters are made in a wide range of styles, some separately powered (e.g. by battery), and others powered by the measured voltage source itself. Instruments permanently mounted in a panel are used to monitor generators or other fixed apparatus. Portable instruments, usually equipped to also measure current and resistance in the form of a multimeter are standard test instruments used in electrical and electronics work. Any measurement that can be converted to a voltage can be displayed on a meter that is suitably calibrated; for example, pressure, temperature, flow or level in a chemical process plant.
-
Röhrenvoltmeter HF 2897 Rückansicht; Foto 1953
Einschub des Röhrenvoltmeters...
Object information
Image: www.industriesalon.de - CC BY-SA -
Geräuschspannungsmessplatzfeinschübe HF 2098 und HF 2897; Foto 1953
Vorderansicht eines...
Object information
Image: www.industriesalon.de - CC BY-SA -
CCIF-Filter HF 2098 - Rückansicht; Foto 1953
CCIF-Filter, Typ HF 2098,...
Object information
Image: www.industriesalon.de - CC BY-SA -
CCIF-Filter HF 2098 - Frontansicht; Foto 1953
CCIF-Filter, Typ HF 2098,...
Object information
Image: www.industriesalon.de - CC BY-SA -
Zweistrahl-Oszillograph HF 2803; Foto 1953
Zweistrahl-Oszillograph, Typ...
Object information
Image: www.industriesalon.de - CC BY-SA
References
Synonyms
[]