Device and method for detecting oxygen content in glass medicine bottle

A technology of oxygen content and detection device, which is applied in the direction of measuring device, color/spectral characteristic measurement, material analysis through optical means, etc. It can solve the problem of inconvenient monitoring of oxygen content in medicine bottles, achieve high discrimination and suppress spectral drift influence, effect of reducing influence

Inactive Publication Date: 2016-05-04
TRUKING TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the current technical problem of inconvenient monitoring of the oxygen content of medicine bottles, the present invention provides a device and method for detecting oxygen content in glass medicine bottles that can accurately and conveniently detect the oxygen content in medicine bottles

Method used

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  • Device and method for detecting oxygen content in glass medicine bottle
  • Device and method for detecting oxygen content in glass medicine bottle
  • Device and method for detecting oxygen content in glass medicine bottle

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Embodiment Construction

[0041] see figure 1 , the present embodiment consists of a sawtooth wave signal generator 1, an adder 2, a laser diode modulation and temperature controller 3, a laser 4, a collimating lens assembly 5, a sealed glass medicine bottle to be tested 6, a focusing lens assembly 7, and a photodetector Component 8, lock-in amplifier 9, GPIB interface card 10, computer 11, first aperture 12 and second aperture 13. The laser diode modulation and temperature controller 3 keeps the working temperature of the laser 4 constant, the sawtooth wave signal generator 1 generates a low frequency sawtooth wave working current, superimposes the high frequency tuning signal generated by the lock-in amplifier 9, and sends it to the laser diode modulation and temperature controller 3. Make the light output wavelength of the laser 4 cover around the 760nm absorption line of oxygen. The laser 4 is equipped with TO5 packaging accessories, and can output a laser beam with high energy density through the...

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Abstract

The invention discloses a device and a method for detecting the oxygen content in a glass medicine bottle. According to technical scheme, a DFB laser device is subjected to current tuning, so that the light efficiency of laser comprehensively scans places near to the absorption line of oxygen; the laser device is matched with a TO5 encapsulation part and outputs laser beams with high energy density through a collimating lens assembly; a single light path is opened to penetrate through the glass medicine bottle to be detected within a short light path length; the laser beams are converted into an electric signal through a photoelectric diode by a focusing lens assembly. A weak signal detection part takes a high-precision phase lock amplifier as a core and outputs digital information of second harmonic; the digital information is transmitted to an industrial control computer for smooth data filtration and background deduction of an open space through a communication module; characteristic values are extracted and transmitted to a built concentration inversion model for processing to accurately measure the oxygen content in the glass medicine bottle. The single-light-path gas absorption system can detect oxygen residues in the colorless glass medicine bottle with the diameter greater than 16 mm.

Description

technical field [0001] The invention relates to the technical field of gas detection, in particular to a device and method for detecting oxygen content in a glass medicine bottle. Background technique [0002] Oxygen in the medicine bottle is the main factor affecting the shelf life of the medicine, and there will inevitably be a small amount of air remaining in the medicine bottle during the process of vacuumizing or filling the gas. If the medicine bottle is not well sealed, the proportion of oxygen in the bottle will further increase. According to industry standards, medicines will likely deteriorate during the shelf life, which will have a very serious impact on the patient's body. [0003] At present, more than 98% of pharmaceutical companies mainly judge whether the oxygen content of the batch of products is qualified through sampling inspection. For the sampled medicine bottles, rough physical methods or relevant oxygen analyzers can be used to detect. However, the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39G01N21/01
CPCG01N21/39G01N21/01
Inventor 阳春华朱高峰李新华李姝洁桂卫华贺建军李浩朱剑平胡鑫刘永胜
Owner TRUKING TECH LTD
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