Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Hamamatsu UVTRON
Summary of Contents for Hamamatsu UVTRON
- Page 1 TECHNICAL INFORMATION ® How to Use UVTRON...
- Page 2 The UVTRON is a sensor sensitive only to ultraviolet light with wavelengths shorter than 260 nm. Featuring high sensitivity high output, and high-speed response, the UVTRON is the ideal sensor for detecting flame and electrical discharge phenomena. FEATURES Capable of detecting very weak ultraviolet light (down to 1 pW)
- Page 3 STRUCTURE AND BASIC OPERATING PRINCIPLES The UVTRON is a bipolar tube with a structure similar to that of a phototube. Just as with phototubes, the UVTRON utilizes the photoelectric emission effect, but the inside of the UVTRON tube is filled with special a gas rather than be- ing a vacuum, so it operates as a discharge tube.
- Page 4 Here, it is important that the converter oscillation interval (l /the oscillation frequency f) be greater than the time re- quired for the ions generated in the UVTRON tube by the discharge to be quenched, so this interval must be from 5 to l0 milliseconds.
- Page 5 However, it will be saturated at the converter oscillation fre- quency f, as shown in Figures 5 and 6. Because of these characteristics, the UVTRON is better suited for on-off opera- tion that determines whether or not ultraviolet light is present, rather than for precise measurement of light level.
- Page 6 BG. Figure 7 is a block diagram for the signal processing circuit and Figure 8 is a timing chart for its opera- tion. The operation of this circuit is explained below. The output pulses from the UVTRON are input to the gate timer and the counter at the same time. The Point (a): counter counts the pulses sequentially.
- Page 7 SUPPLY VOLTAGE AND SENSITIVITY Figure 9 shows a typical relation between the supply voltage and the UVTRON sensitivity. The UVTRON is more sensitive as the supply voltage is increased, but this also increases the background noise. Keep the supply voltage within the recommended range.
- Page 8 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658, E-mail: info@hamamatsu.de France: Hamamatsu Photonics France S.A.R.L., 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: (33)1 69 53 71 00, Fax: (33)1 69 53 71 10, E-mail: infos@hamamatsu.fr United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: 44-(0)1707-294888, Fax: 44-(0)1707-325777, E-mail: info@hamamatsu.co.uk...
Need help?
Do you have a question about the UVTRON and is the answer not in the manual?
Questions and answers