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G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
G01J1/00—Photometry, e.g. photographic exposure meter
G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
G01J1/34—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using separate light paths used alternately or sequentially, e.g. flicker
G01J1/36—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using separate light paths used alternately or sequentially, e.g. flicker using electric radiation detectors
Empfaenger fuer elektrische Fernsteuerungsanlagen mit einem von einem entfernten Geber aus synchron bewegten Laeufer, dessen Stellung durch die Richtung eines durch Mehrphasenstroeme hervorgerufenen konstanten Drehfeldes bedingt wird
Vorrichtung zum Fernanzeigen von Zeigerstellungen mittels eines den Strom fuer das Empfangsgeraet liefernden Stromerzeugers, der sich mit dem Zeiger des Gebers zusammen dreht
Anordnung zur Erzeugung von mehreren Regelspannungen in einem geschlossenen elektrischen Stromkreis, die nach einer Potenzfunktion voneinander abhaengig und unter beliebigem Phasenwinkel zusammengesetzt sind und die je in einem besonderen Transformator erzeugt werden