Optical fiber evanescent wave biomembrane activity detection sensor
A technology for detecting sensors and biofilms, which is applied in the use of optical devices to transmit sensing components, instruments, optics, etc., can solve the problem of inability to measure the activity of biofilms online, and achieve the effects of good application prospects, accurate detection, and long service life.
Inactive Publication Date: 2011-01-05
重庆工学院
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Problems solved by technology
Aiming at the defect that the existing technology cannot measure biofilm activity online, the technical problem to be solved by the present invention is to provide an online detection sensor for optical fiber evanescent wave biofilm activity
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Abstract
An optical fiber evanescent wave biomembrane activity detection sensor comprises incident optical fiber, emergent optical fiber, a collimating mirror and a focusing mirror, and is characterized in that: the sensor is internally provided with a first fixed mirror, a first movable mirror, a second movable mirror and a prism; a mounting hole is arranged in the bottom center of the sensor, the prism is arranged in the mounting hole on the sensor bottom, and the bottom of the prism protrudes outwardly; the upper portion of the prism is a cuboid, a front side and a back side of the lower portion ofthe prism take the shape of an isosceles trapezoid with an upper base line longer than a lower base line, and a left side and a right side of the lower portion of the prism take a shape of a rectangle; a reflecting surface of the first fixed mirror forms an angle of 45 degrees with the center line of the incident optical fiber, the first movable mirror forms an angle of beta degrees with a horizontal plane, and the reflecting surface of the first movable mirror simultaneously corresponds to the reflecting surface of the first fixed mirror and a side of the prism. The sensor can perform onlinedetection of biomembrane activity and has advantages of accurate detection, rapid response and long service life.
Description
An optical fiber evanescent wave biofilm activity detection sensor technical field The invention relates to an optical fiber sensor, in particular to an optical fiber evanescent wave biofilm activity detection sensor. Background technique In the process of treating low-concentration organic waste gas (VOCs) in the biological trickling filter tower, because the biochemical reaction process of biological waste gas treatment is very complicated, there are many factors that affect the efficiency of waste gas treatment, such as the composition of the bacterial suspension containing microorganisms and nutrients, biological Concentration, PH value, circulation speed, circulating liquid flow rate, tower temperature, etc., the above factors will ultimately affect the biofilm activity directly related to the degradation rate of organic waste gas. Literature research has confirmed that many vital life activities in cells exist on the cell surface, and the secretions on the cell surfa...
Claims
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IPC IPC(8): G01N21/17G01D5/353G02B26/08G02B1/02G02B5/04
Inventor 赵明富罗彬彬钟年丙王少飞
Owner 重庆工学院