Laser array based detection device and pseudosciaena polyactis storage time detection method

A laser array and detection device technology, which is applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of cumbersome detection methods, high cost, and long time consumption

Inactive Publication Date: 2014-10-08
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology

[0005] The purpose of the invention is to overcome the shortcomings of the detection method in the prior art, which are cumbersome, high cost, and time-consuming, and provide a detection device based on a laser array with high detection speed and high accuracy and a storage time detection method for small yellow croakers.

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  • Laser array based detection device and pseudosciaena polyactis storage time detection method
  • Laser array based detection device and pseudosciaena polyactis storage time detection method
  • Laser array based detection device and pseudosciaena polyactis storage time detection method

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Embodiment Construction

[0039] The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] Such as figure 1 The illustrated embodiment is a detection device based on a laser array, including a spectrometer, a base plate 1 for placing samples to be detected, and a support plate 2 above the base plate; It is equipped with a laser array 3 for irradiating the sample to be tested and a fiber optic probe 4 for detecting the reflected light after the laser light emitted by the laser array is reflected by the sample; the laser array includes 6 single-wavelength lasers bundled together and the wavelengths are arranged in order The probe is electrically connected with the spectrometer, and the spectrometer is provided with a signal output port for electrical connection with the computer; the angle between the optical fiber probe and the horizontal plane is 70 degrees.

[0041] The wavelengths of the six single-wavelength lasers are 635nm, 980n...

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Abstract

The invention discloses a laser array based detection device and a pseudosciaena polyactis storage time detection method. The method includes: firstly making the laser emitted by a laser array irradiate a sample, collecting the light reflected by the sample by an optical fiber probe and inputting the collected light into a spectrometer so as to obtain n detection signals corresponding to the wavelengths of n lasers; then adjusting the weight of each detection signal to obtain a satisfactory detection signal x(t), inputting the x(t) into a stochastic resonance system model prestored in a computer to make the stochastic resonance system model undergo stochastic resonance, then drawing an output signal noise ratio curve of the stochastic resonance system model by the computer, and conducting calculation by the computer to obtain a predicted pseudosciaena polyactis storage Time. With the characteristics of fast detection speed, high accuracy and good economical efficiency, the device and the method provided by the invention eliminates the interference information of useless band stray light, and the sample storage time is better differentiated.

Description

technical field [0001] The invention relates to the technical field of food quality detection, in particular to a detection device based on a laser array with high detection speed and high accuracy and a storage time detection method for small yellow croakers. Background technique [0002] Small yellow croaker belongs to the Sciaenidae family (Sciaenidae), also known as yellow croaker and stone head fish. The small yellow croaker is a dry-swimming fish clustered in warm-temperate coastal waters, and its main activity area is south of the central part of the South China Sea. Because the small yellow croaker contains a large amount of selenium, it can better remove free radicals and beautify the skin. In addition, small yellow croaker is very rich in protein, and the meat is relatively delicate, which can be used as one of the ideal animal protein sources for human beings. Small yellow croaker is known as my country's four major economic fishes, especially in the development...

Claims

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Application Information

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IPC IPC(8): G01N21/25
Inventor 惠国华黄洁
Owner ZHEJIANG GONGSHANG UNIVERSITY
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