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Phosphorescence afterglow measuring equipment

A measuring device, a technology of fluorescence afterglow, which is applied in fluorescence/phosphorescence, material excitation analysis, etc., can solve problems such as troublesome use and poor consistency, and achieve the effects of convenient use, good consistency and accurate measurement data

Inactive Publication Date: 2003-07-09
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In all these methods, the excitation and afterglow brightness measurement of the sample are operated separately, which is cumbersome to use and poor in consistency

Method used

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  • Phosphorescence afterglow measuring equipment
  • Phosphorescence afterglow measuring equipment
  • Phosphorescence afterglow measuring equipment

Examples

Experimental program
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Embodiment Construction

[0009] refer to figure 1 , the fluorescent afterglow measuring device of the present invention comprises an exciting light source 1, a dark box 3 for exposure and measurement, a sample holder 6 is installed on the dark box 3, and an afterglow detector 4 for receiving a sample afterglow light signal is provided in the dark box, and the afterglow detector 4 is connected with the measuring instrument 5, and an exposure control device 2 is arranged on the excitation light path to control the excitation light irradiated on the surface of the sample. The afterglow released by the sample is received by the afterglow detector 4, and the afterglow light signal is converted into an electrical signal and sent to the measuring instrument 5. The excitation light source 1 can be a mercury lamp, a xenon lamp, a fluorescent lamp or a metal halide lamp. The exposure control device may be a controller that controls the excitation light source to turn on or off, such as a relay, or may also be ...

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Abstract

The measurement equipment of fluorescence afterglow includes excitation light source, exposure control device for controlling sample exposure, dark box for exposure and measurement, sample seat mounted on the dark box, afterglow detector mounted in the dark box for receiving sample afterglow signal and measuring meter connected with outupt end of afterglow detector. When it is worked, under the control of the exposure control device, said sample can be irradiated by excitation light source and exposed, after the exposure is completed, said sample can continuously release fluorescence afterglow, said afterglow can be received by afterglow detector, the afterglow light signal can be converted into electric signal, and inputted into the measuring meter, the afterglow luminance and afterglow duration parameter values can be displayed on the meter.

Description

technical field [0001] The invention relates to a fluorescent afterglow measuring device. Background technique [0002] Long afterglow fluorescent material, also known as luminous powder, luminous powder, luminous sign, etc. When it is irradiated by light, part of the irradiated light energy is absorbed and stored; when the light is stopped. Light energy will gradually be released. It is widely used in night warning signs, emergency signs on ships and public places, etc. Afterglow brightness and afterglow time are the most important parameters of long afterglow fluorescent materials. Currently there is no uniform and reliable method for the measurement of these parameters. The existing method is: first irradiate the long-lasting fluorescent material under sunlight, fluorescent lamp or a specific lamp for a period of time, then measure the afterglow brightness of the fluorescent material with a luminance meter in a dark room, and continuous...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
Inventor 牟同升
Owner ZHEJIANG UNIV
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