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Seawater salinity detection device with prism model capable of refracting for multiple times

A detection device, seawater salt technology, applied in the field of seawater salinity detection device, prism model multiple refraction seawater salinity detection device, can solve the problem of low detection accuracy, achieve accurate measurement results, improve resolution, save measurement the effect of time

Inactive Publication Date: 2011-07-20
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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Problems solved by technology

[0003] The purpose of the present invention is to provide a seawater salinity detection device with multiple refraction of the prism model to overcome the low detection accuracy of the current optical refraction seawater salinity detection device

Method used

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  • Seawater salinity detection device with prism model capable of refracting for multiple times
  • Seawater salinity detection device with prism model capable of refracting for multiple times
  • Seawater salinity detection device with prism model capable of refracting for multiple times

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Embodiment 1

[0029] Such as figure 2 As shown, a device with four sets of prism models including signal processing chamber 1, upper reference chamber 2, middle reference chamber 3 and lower reference chamber 4 is used. A laser 7, a PSD and a signal acquisition and processing module 16 are arranged in the signal processing chamber 1, wherein the PSD can be welded on the signal acquisition and processing module 16, and is controlled by the signal acquisition and processing module 16 together with the laser 7. The cable 5 is connected with the signal acquisition and processing module 16 in the signal processing cavity 1 through the watertight plug 6, and supplies power to the circuit board and communicates with the upper computer 15. All three reference chambers are filled with distilled water as reference solution. The reference chambers and the protective net surround 13 to form an upper measurement chamber and a lower measurement chamber, and the measurement liquid (seawater) enters the ...

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Abstract

The invention relates to a seawater salinity detection device with a prism model capable of refracting for multiple times, which comprises an upper computer, a right-angle prism and a signal acquisition and processing module; optical glass which is perpendicular to an emitting light path of a laser and two pieces of optical glass which form a group of prism models in a mode of forming an acute angle alpha 1 and an obtuse angle beta 1 with the emitting light path of the laser are arranged below the laser and a position sensitive device, and two pieces of optical glass, which form a group of prism models and form an acute angle alpha 2 and an obtuse angle beta 2 with the opposite direction of the emitting light path of the laser respectively, are arranged above the right-angle prism sequentially; and the optical glass and a shell of the device enclose an upper closed reference cavity filled with reference liquid, and the optical glass and a shell at the bottom end of the device enclose a lower closed reference cavity which is provided with the right-angle prism and filled with the reference liquid. The seawater salinity detection device has a simple structure and is convenient to use, and due to the adoption of the prism models, the deflection angles of light rays are expanded, the resolution, accuracy and interference resistant capacity are improved, the length of the instrument is shortened, and the equipment cost and measuring cost are reduced.

Description

technical field [0001] The invention relates to a seawater salinity detection device, in particular to a seawater salinity detection device with multiple refraction of a prism model, which belongs to the fields of photoelectric sensing and marine environment monitoring. Background technique [0002] In addition to the conductivity method, seawater salinity detection mainly includes photoelectric detection of seawater salinity using optical refraction, that is, optical refraction seawater salinity detection. The nature of causing the light to shift at the receiving end enables the detection of seawater salinity. At present, for the photoelectric detection of seawater salinity, the representative abroad is the transmissive salinity sensor proposed by Hideyuki Minato and others in Japan, which uses a semiconductor laser as a light source and uses optical fibers to transmit optical signals. Its shortcoming is long-distance transmission The signal process is cumbersome and relat...

Claims

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Application Information

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IPC IPC(8): G01N21/41
Inventor 陈世哲范秀涛赵力刘世萱万晓正董大圣王晓燕刘野
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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