Spiral emission spectral chromatography device
A technology of emission spectroscopy and helical emission spectroscopy, which is applied in the field of helical emission spectroscopy and chromatography devices, can solve the problems of low efficiency, complex mechanism and device, and long scanning time, and achieve the effect of simple device structure, short scanning time and short time
Inactive Publication Date: 2012-01-11
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology
In the traditional spectral data acquisition for steady-state heat flow field testing, the method of rotating the test platform, longitudinal translation and parallel scanning with a single fiber probe is often used to obtain multi-directional and multi-fault emission spectral data. The device is complicated, the scanning time is long, and the test efficiency is low
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[0008] like figure 1 As shown, the present invention is achieved in this way, the transmission device 7 is connected to the bottom end of the central screw rod 5, and the top end of the central screw rod 5 is connected to the back center of the rotating platform 4, and the steady-state heat flow field 3 to be measured is arranged on the rotating platform, and the central screw rod 5 is covered with a nut 6, and the nut 6 is connected to the optical fiber array arc support 2 through a connecting rod. Several small holes are evenly opened on the top of the optical fiber array arc support 2, and one end of the infrared optical fiber line array 1 is fixedly installed in the small holes. The other end of the optical fiber line array 1 is connected to the coupler 14, the coupler 14 is connected to the photodiode array 13, the photodiode array 13 is connected to the amplifying circuit 12, the amplifying circuit 12 is connected to the data acquisition card 11, the data acquisition card...
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The invention discloses a spiral emission spectral chromatography device. A transmission device is connected with the bottom end of a central screw; the top end of the central screw is connected with the back center of a rotating platform; and a nut is sleeved on the central screw and is connected with an optical fiber array arc bracket through a connecting rod. A plurality of small holes are uniformly formed at the top end of the optical fiber array arc bracket; and one end of an infrared optical fiber array is fixedly arranged inside the small holes, and the other end of the infrared optical fiber array is connected with a coupler. The coupler is connected with a photodiode array; the photodiode array is connected with an amplifying circuit; the amplifying circuit is connected with a data acquisition card; the data acquisition card is connected with a computer; the computer is connected with a stepping motor control card; the stepping motor control card is connected with a stepping motor; and the stepping motor is connected with the transmission device. Normal lines of end faces of optical fibers of the infrared optical fiber array are coplanar; the normal plane is vertical to an axis of the central screw; the extension lines of the normal lines are intersected at one point; and the point is an intersection point of the normal plane and the axis of the central screw. The spiral emission spectral chromatography device has the advantages of high data acquisition efficiency, short needed time, simple structure and short scanning time.
Description
technical field [0001] The present invention relates to a spectrum chromatography device, in particular to a helical emission spectrum chromatography device. Background technique [0002] Emission spectrum tomography is a photoelectric detection device that combines computer tomography technology with spectral analysis and detection technology, and can be used to test the three-dimensional radiation distribution of steady-state heat flow fields such as argon ion welding arcs. In the traditional spectral data acquisition for steady-state heat flow field testing, the method of rotating the test platform, longitudinal translation and parallel scanning with a single fiber probe is often used to obtain multi-directional and multi-fault emission spectral data. The device is complicated, the scanning time is long, and the test efficiency is low. Contents of the invention [0003] The object of the present invention is to provide a helical emission spectrum chromatography device,...
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IPC IPC(8): G01J3/443
Inventor 万雄张志敏易江林高益庆何兴道
Owner NANCHANG HANGKONG UNIVERSITY