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Abstract
Fire-alarm with Ge. phototransistor and low impedance type PbS cell has been developed. The longer wavelength-limit of response is expanded to near infrared region (～2.9 microns), and it has been enabled to detect the over heated board or wall which emits near infrared radiation (～3.0 microns).
Fire-alarm with Ge. phototransistor and low impedance type PbS cell has been developed. The longer wavelength-limit of response is expanded to near infrared region (〜2.9 microns), and it has been enabled to detect the over heated board or wall which emits near infrared radiation (〜3.0 microns).
Journal
- Memoirs of the Faculty of Engineering, Yamaguchi University [List of Volumes]
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Memoirs of the Faculty of Engineering, Yamaguchi University 15(1), 123-126, 1965-04 [Table of Contents]
Yamaguchi University
