Automaticbiochemical analyzer is a medical device company research and development of medical inspection instrument main component part of physics, chemistry, optical and the combination of the biological medicine, including the spectrophotometer, automatic biochemistry analyzer, ultraviolet, visible photometric, fluorescence photometric and so on, its structure is mainly have optical system (light path) and circuit system (circuit) two parts. To make instruments often is in good working condition, often should to the instrument for the daily maintenance and maintenance.
1, Grating
Grating is continuous spectrum analysis and inspection instrument happened the main dispersion components. Because of its uniform dispersion, spectral lines clear, work characteristics such as wide band, has basic replaced the prism, become the protagonist of the dispersion components. Grating is composed of many as wide space, the parallel slit of optical components, according to the diffraction of light and dry shoot the work principle. Its surface coating, have a layer of aluminum film, texture is soft, easy to scratch. Therefore, in the maintenance, repair process, gentle with, forbidden by hand or other items to wipe. Otherwise, can cause the aluminum film permanent damage. If the aluminum film on the dust and unclean thing. And you can use blows balloons will go to the blow.
2, The collimator mirror
The collimator is actually a piece of a concave mirror. According to the nature of the concave mirrors that is parallel to the axis of paraxial rays, via a concave mirror reflects will build up after in the focal plane and the principle of work. The collimator mirror most used spherical reflector, also have a parabolic mirror the rotation. The surface of the mirror the collimator is usually coated aluminum film, if in the visible region, in order to protect the aluminum film are not destroyed, often in the aluminum film plating outside a protective layer of silicon dioxide again, but in the ultraviolet area, to guarantee a high reflectivity, generally have no such protection layer, has no protection for a straight lens, the maintenance methods and grating the same. Banned the maintenance and repair process with hand or other hard goods to wipe.
3, Cuvette
Cuvette called than than color pool, the color, the color than cup than tanks, biochemical analysis instrument is the attachment.Cuvette in optical system than the main used for holding than color sample analysis of liquid. To get the accurate measurement results, the correct use of dish than color and the maintenance, the maintenance is especially important. In visible range, cuvette than common colorless optical glass or plastic; In the uv area commonly used quartz glass production. In addition to the color dish than with the pervious to light, also should have the strong corrosion resistance. The color of the general and instrument than the dish is the form a complete set, can't mix, otherwise, it will bring big measurement error. Check whether than color dish to meet the requirements of method is, in every color dish than the same colored solution put rules of the wavelength measurement, read out of the transmission than error should be less than . Otherwise, the error is too big, should not be used. Color used than dish, attention shall be paid to its place direction, because pervious to light after the reversing direction, the pervious to light abilities may change. Some general have the dish color than before, and to indicate the direction of the light. Cheng fang in the liquid, the fluid volume than color a little more than a cup of I / 2 can, than color appearance not sticky liquid dish or other and mud. Otherwise, the meeting because of the light reflection and refraction, seriously affect the measurement results. Measuring over, should immediately put distilled water flushing, regular inspection wall if there is residual, often to keep it clean.
4 ,The objective, the eyepiece
The eyepiece is optical microscope objective and major components. Optical microscope as a simple optical inspection instruments, due to its simple structure, convenient operation, in big, small and medium-sized widely used in hospital. To maintain its performance and extend its life, often need to do the maintenance.
First, the objective lens in the eyepiece, surface used every time a day or after work, need to use clean brush cleaning, or with special brush mirror wipe clean paper. If the microscope vision fuzzy, or lens on the touch dirt, oil play or finger print. Or born lens mold, born the fog, should by engineering technical personnel more serious wipe:
When wiping, eyepiece, focusing on through can be broken apart is wiped. The objective for structure is complex, need special instrument calibration can be restored to the original precision, so it is strictly prohibited to decomposition is wiped. Remove the eyepiece, focusing lens, want to note the following points:
(1) The movement wants light.
(2) Remove the components relative position, relative order and the face of positive and negative of lenses etc to do or do a marker record. Prevent errors heavily.
(3) The operation environment clean and dry. When wiping: first use clean brushes or blows balloons to remove the lens on the sand and dust, to prevent dust when wiping scratch lens. Then, with a clean from the lens center began to flannelette edge for spiral one-way movement, until wipe so far. If there is oily be soiled, dirt or fingerprints etc't wipe off dirt, can use a dip in alcohol and already ether without water mixture to wipe; If there are heavier mildew spot, can the cotton dips in water calcium sulfate powder was to wipe, wipe finished, should clean the powder.
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