00000nam 2200000zi 4500 9.957147 CaOODSP 20251106114601 m o d f cr bn||||||||| 251106s1966 oncad ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre n-cn--- En57-56/595-1966E-PDF Smith, W. R., author. Ceilometer photocell test unit / by W.R. Smith. Appareil de contrôle des cellules photoélectriques de célomètre Toronto, Ontario : Department of Transport, Meteorological Branch, 1966. 1 online resource (14 pages, 2 unnumbered pages) : illustrations, charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier TEC ; 595 Digitized edition from print [produced by Environment and Climate Change Canada]. "CIR 4373." "2 Feb. 66." "Instrument research and development report no. 1." Includes bibliographical references (page 14). "The paper describes a unit designed and constructed at Meteorological Branch Headquarters for the purpose of testing bad sulphide photoconductive cells used in the rotating beam ceilometer. Test conditions are discussed, and related to industrial practice, means of realizing these conditions are described, and a test procedure is outlined. Circuit descriptions and wiring diagrams of the final units are included"--Abstract. Text in English; abstract in English and French. Ceilometer Testing. Photoconductive cells Testing. Meteorological instruments Research Canada. Ceilomètres Essais. Photoconductivité Essais. Météorologie Instruments Recherche Canada. Canada. Meteorological Branch, issuing body. TEC ; 595. (CaOODSP)9.934253 PDF 587 KB https://publications.gc.ca/collections/collection_2025/eccc/en57/En57-56-595-1966-eng.pdf U.D.C. :551.508.762