Full-automatic optical wavelength measuring device and method based on filter absorption characteristics
A technology of absorption characteristics and measuring devices, which is applied in the field of fully automatic optical wavelength measuring devices, can solve the problems of large detection equipment, low measurement efficiency, and long adjustment time, and achieve the effects of compact structure, high degree of automation, and small measurement errors
Inactive Publication Date: 2017-06-13
HUAZHONG AGRI UNIV
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The disadvantages of these methods are that the detection equipment is large in size and weight, long in adjustment time and low in measurement efficiency.
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[0038] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0039] A fully automatic optical wavelength measurement device based on the filter absorption characteristics of the present invention, such as Figure 1~4 As shown in and 6, it includes an insulating base plate 1, a light guide pipe 2, a turntable 5, a motor 11, a photoelectric sensor 12, a voltage peak catcher 25, an analog-to-digital converter 26, a processor 27 and a vertically installed on the insulating base plate 1 The first support plate 18 and the second support plate 24;
[0040] Wherein, the first support plate 18 is parallel to the second support plate 24, the first support plate 18 is provided with a light hole 18.1, the first support plate 18 is fixedly connected to the light guide tube 2, and the light guide hole of the light guide tube 2 is connected to the first support plate 18. The light-through hole 18.1 is coaxially communi...
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The invention relates to a full-automatic optical wavelength measuring device based on filter absorption characteristics. A light transmission hole is formed in a first support flat plate of the device, a light guide pipeline is fixedly connected on the first support flat plate, a light guide hole of the light guide pipeline is coaxially communicated with the light transmission hole, a shaft hole is formed in a second support flat plate, a motor is mounted on the rear side surface of the second support flat plate, a rotating shaft of the motor penetrates the shaft hole, a photoelectric sensor is fixed on the front side of the second support flat plate, a turntable is uniformly provided with a first detection window hole, a second detection window hole and a third detection window hole, a first band-pass filter covers the first detection window hole, a second band-pass filter covers the second detection window hole, the rotating shaft of the motor is fixedly connected with an axle center of the turntable, and the turntable is positioned between the first support flat plate and the second support flat plate. According to the measuring device, data are rapidly acquired, measuring errors are small, a spectrometer automatically scans to obtain filter data, information quantity is large, data are accurate, a correlation coefficient of a transmittance-wavelength fitting mode is high, and wavelengths are accurately calculated.
Description
technical field [0001] The invention relates to the technical field of optical wavelength measurement, in particular to a fully automatic optical wavelength measurement device and method based on the absorption characteristics of a filter. Background technique [0002] The measurement of light source wavelength is a basic content in the college physics experiment teaching for students majoring in science and engineering in colleges and universities. At present, many light source wavelength measurement methods use the interference of light to measure, mainly including double-slit interferometry to measure laser wavelength and Michelson interferometer. The method of measuring continuous laser wavelength, Newton ring measuring laser wavelength and optical wedge interferometry laser wavelength and other methods. The disadvantages of these methods are that the detection equipment is bulky and heavy, the adjustment time is long and the measurement efficiency is low. [0003] The ...
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IPC IPC(8): G01J9/00
CPCG01J9/00
Inventor 高贻钧魏薇周红涛杨淦光
Owner HUAZHONG AGRI UNIV