A leak detection device and measurement method for vials based on dual-wavelength-tdlas technology

Abstract

The invention discloses a penicillin bottle leakage detection device based on a dual wavelength-TDLAS technology and a measurement method thereof. The device comprises a laser, a laser controller, anoptical fiber coupler, a first collimator, a first detector, a second collimator, a second detector, an acquisition card and a computer, wherein the laser controller is electrically connected with thelaser; the optical fiber coupler is connected with the laser; the first collimator is used for collimating laser beams with a laser intensity ratio to be a; the first detector is fixed on the first collimator; the second collimator and the second detector are fixed at two sides of the penicillin bottle body; the acquisition card is electrically connected with the first detector and the second detector; and the computer is electrically connected with the acquisition card. The method comprises the following steps: the laser is adopted to output two laser beams with different output wavelengths,the two laser beams are divided to two kinds of laser beams with the laser intensity ratios to be a and b by the optical fiber coupler, the collimators are adopted to collimate the split laser beams,the split laser beams are received by the detectors, the beams are acquired by the acquisition card after initial intensity and transmitting intensity are obtained, the optical signals are convertedto electric signals and are then transmitted to the computer for data processing, and the leakage coefficient of the penicillin bottle is obtained.

Description

technical field [0001] The invention relates to a cillin bottle leak detection device and a measurement method based on dual-wavelength-TDLAS technology. Background technique [0002] Because of the advantages of easy transportation, storage and use, vials are widely used in the packaging of antibiotic freeze-dried powder injections such as beta-lactams and quinolones. However, due to the problems of cracks, cracks and loose assembly between the rubber stopper and the bottle during the packaging process of the vial, the air infiltrates into the vial, and a series of chemical reactions occur between the water vapor and oxygen in the air and the drug. Make medicine degenerate, if leak detection is not carried out to vial in time, then can cause great impact to patient's health. Therefore, it is particularly important to carry out non-interference, fast and high-precision detection of the sealing of vials. However, the previous leak detection methods cannot meet the non-inter...

AI Technical Summary

Problems solved by technology

However, the previous leak detection methods cannot meet the non-interference and high-precision detection of the sealing of vials

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