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參數(shù)資料
| 型號(hào)： | VT900 |
| 廠商： | PerkinElmer Inc. |
| 英文描述： | Photoconductive Cells and Analog Optoisolators (Vactrols) |
| 中文描述： | 光導(dǎo)細(xì)胞和模擬光隔離器（Vactrols） |
| 文件頁數(shù)： | 18/76頁 |
| 文件大小： | 1240K |
| 代理商： | VT900 |
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13
Photoconductive Cell Testing and General Notes
Production Testing of Photocells - PerkinElmer’s New Approach
Historically within this industry, vendors have set their
production testers to the limts specified on the
customers print. Measurement errors due to ambient
temperature, calibration of light source, light history
effect, plus any tester errors have always guaranteed that
a certain percentage of the cells shipped are out of
specification.
This practice is incompatible with the realities of today’s
marketplace, where quality levels are being measured in
parts per mllion.
With this new catalog, PerkinElmer is taking the
opportunity to correct this situation. for parts in this
catalog, PerkinElmer has pulled in the test limts on our
production testers to compensate for measurement
errors.
General Notes
(Refer to the following data specification pages.)
Photocells are supplied categorized into groups by resistance. All groups must be purchased together and PerkinElmer maintains
the right to determne the product mx among these groups.
Dimension controlled at base of package.
Photocells are tested at either 1 fc or 10 lux. 2 fc typical values shown in the tables are for reference only.
Cells are light adapted at 30 - 50 fc.
The photocell “grid” pattern can vary fromthat shown. PerkinElmer reserves the right to change mx grid patterns on any standard
product.
The resistance for any standard cell is controlled at only one light level. If the resistance at other light levels is a concern, please
contact the factory.
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