DE233344C - - Google Patents
Info
- Publication number
- DE233344C DE233344C DE1910233344D DE233344DD DE233344C DE 233344 C DE233344 C DE 233344C DE 1910233344 D DE1910233344 D DE 1910233344D DE 233344D D DE233344D D DE 233344DD DE 233344 C DE233344 C DE 233344C
- Authority
- DE
- Germany
- Prior art keywords
- current
- selenium
- cell
- cells
- coils
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE233343T | 1910-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE233344C true DE233344C (enrdf_load_stackoverflow) | 1911-04-06 |
Family
ID=34624911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1910233344D Expired DE233344C (enrdf_load_stackoverflow) | 1910-01-18 | 1910-01-30 |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE233344C (enrdf_load_stackoverflow) |
-
1910
- 1910-01-30 DE DE1910233344D patent/DE233344C/de not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2237564C3 (de) | Verfahren zur berührungslosen optischen Messung von Bewegungsgrößen, wie Geschwindigkeiten und Verschiebestrecken und Einrichtung zur Durchführung des Verfahrens | |
DE69932218T2 (de) | Von Magnetkraft Gebrauch machende Kammstruktur | |
DE1463767A1 (de) | Anordnung zur UEberwachung des Stromes in einer elektrischen Leitung | |
DE233344C (enrdf_load_stackoverflow) | ||
DE666513C (de) | Anordnung zur Pruefung von Koerpern auf ihre optischen Eigenschaften | |
DE2526279A1 (de) | Elektrodynamische kraftmesseinrichtung | |
DE1279343B (de) | Optischer Entfernungsmesser | |
DE926885C (de) | Einrichtung zum Abbilden einer Drehzahl als Frequenz einer Spannung oder eines Stromes | |
DE242751C (enrdf_load_stackoverflow) | ||
DE459426C (de) | Vorrichtung zur genauen Messung oder Steuerung einer Frequenz oder Tourenzahl | |
DE881265C (de) | Impulsgesteuerte Drehmomentmesseinrichtung | |
DE947753C (de) | Anordnung zum Vergleich zweier Lichtwege unterschiedlicher Intensitaet nach dem Wechsellichtverfahren | |
DE419774C (de) | Spannungsunabhaengiges Ohmmeter fuer Wechselstrom | |
DE247936C (enrdf_load_stackoverflow) | ||
DE234760C (enrdf_load_stackoverflow) | ||
DE719631C (de) | Einrichtung zum Abgriff einer der Drehzahl eines Motors verhaeltnisgelichen Spannung | |
DE2132973B2 (de) | Optische Meßvorrichtung Ausscheidung aus 2166382 | |
AT138552B (de) | Vorrichtung zur punktweisen Aufnahme der Kurven von Wechselstromwerten. | |
DE732520C (de) | Vorrichtung zur selbsttaetigen Bildung der Summe der Angaben mehrerer Maximumschreiber | |
DE332120C (de) | Vibrationsmessgeraet zur Messung kleiner Leistungen | |
DE1017799B (de) | Verfahren und Einrichtung zur exakten Laengenmessung | |
DE265925C (enrdf_load_stackoverflow) | ||
DE203561C (enrdf_load_stackoverflow) | ||
DE146189C (enrdf_load_stackoverflow) | ||
DE193170C (enrdf_load_stackoverflow) |