Yleinen stereomikroskooppi viat ja vianmääritys menetelmät

Stereomicroscope use common faults and troubleshooting methods: Stereomicroscope has a wide range of applications in industry and agriculture and scientific research departments because of its many advantages. If there are some problems in the use of the process can be solved according to the actual situation. According to the actual use of common faults are: blurred field of view or dirt, the possible causes are specimens on the dirt, eyepiece surface is dirty, objective lens surface is dirty, the surface of the working plate is dirty. According to the actual situation can be taken to clean the specimen, the eyepiece, the objective lens and the surface of the work plate to solve the problem of dirt. Double image does not coincide with the possible reasons for the pupil distance adjustment is not correct can be taken to correct the pupil distance measures, double image does not coincide with the degree of vision may also be adjusted incorrectly can be taken to re-adjust the degree of vision, there may be left and right eyepiece magnification is different can be checked eyepieces and re-install the same magnification of the eyepieces. If the image is not clear, there may be dirt on the surface of the objective lens, please clean the objective lens. If the image is not clear when zooming, it may be that the visual adjustment is not correct and the focusing is not correct, you can re-adjust the visual adjustment and focusing. If the bulb often burns out and the light flickers, it may be that the local line voltage is too high, the bulb is burning out and the wire connection**, please check the voltage and the wire connection of the microscope carefully to see if the connection is firm, if not, it may be that the bulb burns out and the bulb can be replaced again to solve the problem.

steps. The following are explained separately. Focusing: Put the table plate into the mounting hole of the table plate on the base. Observation of transparent specimens, the choice of hairy glass plate; observation of opaque specimens, the choice of black and white plate. Then loosen the focusing slide on the fastening screws, adjust the height of the mirror body, so that its magnification with the selected objective lens roughly the same working distance. After adjusting, the fastening screw must be locked. When focusing, it is recommended to use flat objects, such as flat paper with characters printed on it, straightedge, triangular board, etc. Degree of vision adjustment: first of all, the right and left eyepiece barrel on the degree of vision circle are adjusted to the 0 mark position. Usually, the first observation from the right eyepiece barrel. Turn the zoom handwheel to * low times the position, turn the focusing handwheel and the degree of vision adjustment circle on the specimen to adjust until the specimen's image is clear, and then turn the zoom handwheel to * high times the position of the specimen to continue to adjust until the specimen's image is clear, at this time, with the left eyepiece barrel to observe, such as unclear along the axial adjustment of the left eyepiece barrel on the degree of vision circle, until the specimen's image is clear. Pupil distance adjustment: Trigger the two eyepiece barrels, you can change the pupil distance of the two eyepiece barrels. When the user observes the two circular fields of view in the field of view completely overlap, it means that the pupil distance has been adjusted. It should be noted that due to individual differences in visual acuity and eye adjustment, therefore, different users or even the same user at different times when using the same microscope, should be adjusted separately to obtain * the best observation effect. Whether replacing the upper light bulb or the lower light bulb, be sure to switch off the power switch and unplug the power cord from the power outlet before replacing it. When replacing the upper light source bulb, first unscrew the knurled screw of the upper light source light box, remove the light box, then remove the bad bulb from the lamp holder, replace it with a good bulb, and then install the light box and knurled screw. When replacing the lower light source bulb, you need to remove the glass table plate or black and white table plate, from the base, and then remove the bad bulb from the lamp base and replace it with a good bulb; then install the glass table plate or black and white table plate. When replacing the bulb, please use a clean soft cloth or cotton gauze to wipe the bulb glass shell clean to ensure the lighting effect.