Image measuring instrument daily protection and maintenance is very important, but in the instrument does not work or work, the surrounding environment is also a strict requirement. This environment will have a slow shadow box on the instrument, if you do not pay attention to the life of the instrument will slowly decrease. So users should pay attention to these issues, because the precision of the instrument will also be affected by the environment. General instruments should be placed in a clean environment, in addition to the following requirements:
1. Dust-free environment
Image measuring instrument is a very precise instrument, so it can not be contaminated with dust. Once the instrument rails, lenses, etc. stained with dust and debris, it will have a serious impact on the accuracy, imaging. So we must regularly clean the instrument, try to achieve a dust-free environment. Personnel in and out should pay attention to, require a change of shoes or with shoe covers. And reduce the number of people in and out.
2. Reduce oil pollution
Image measuring instrument is a very precise instrument, so its guide, lens, scale and plane glass can not be stained with oil, otherwise it will affect the normal use of the instrument. Usually pay attention not to touch the instrument directly with unclean hands, it is best to be able to bring cotton gloves.
3. The influence of light
Measuring instrument can not be directly with direct sunlight, can not be placed in a place where the sun is very strong, otherwise it will affect the accuracy of the instrument, and a long period of time directly under the high temperature will damage the instrument.
4. Temperature control
The ambient temperature where the meter is placed is 18 degrees Celsius-24 degrees Celsius, which should not be exceeded, or the accuracy will be damaged.
5. Humidity control
Humidity also has an impact on the accuracy of the instrument, and high ambient humidity will lead to rust. Therefore, the general environmental humidity should be controlled between 45% and 75%.
6. Pay attention to shock absorption
If the instrument is in a vibration environment for a long time, its parts will be damaged and lead to loss of accuracy. Shock absorption is very necessary. Frequency is less than 10Hz when the amplitude is less than 2um. frequency in 10Hz - 50Hz when the acceleration should be less than 0.4Gal. If these vibration environments cannot be controlled, then vibration dampers are to be installed to reduce vibration.
No matter how good the brand, how good the quality, need to pay attention to the use and maintenance. Environmental control of the impact of the measuring instrument is subtle, pay attention to the above points, you can protect the instrument to reduce damage and avoid unnecessary maintenance, but also a cost savings.
Two, the use of the image measuring instrument notes
Image measuring instrument belongs to the high-precision measuring instruments, so in order to obtain accurate measurement results, we must avoid errors in the measurement process. Correct use of image measuring instruments to ensure accurate data. Therefore, to obtain accurate measurement results, we must avoid errors in the measurement process. Correct use of the image measuring instrument to ensure that the data is accurate. Matters needing attention in the use of image measuring instruments:
1, you need to choose the appropriate workpiece fixation method and the appropriate workpiece direction.
2, the lighting method of the workpiece is also very important, according to the measured features to design.
3, according to the drawings to determine the workpiece coordinate system, so as to define the workpiece reference within the coordinate system.
4, there is no automatic zoom system of the image meter, the need for image calibration, while the image measuring instrument also need to determine the appropriate magnification.
5, the measurement path and measurement method is very important to determine the precise path and method.
6, the image measuring instrument programming and record the annotation information, can make the data more accurate and more conducive to data maintenance.
Three, the image measuring instrument maintenance inspection notes
Instrumentation and other precision measuring instruments in the maintenance process, first of all, we must understand the basic principles of precision measuring instruments, and master the knowledge and skills related to electronics. Secondly, you should prepare the required instrumentation manuals, drawings and other information. Third, should be to develop a good quality of work, in the process of repairing precision instruments to improve efficiency and reduce errors.
Maintenance and inspection work to note:
1, with a multimeter ohm block, remember not to measure with electricity.
2, the use of logic pens, oscilloscopes to detect the signal, infrared thermometer to pay attention to not make the probe at the same time contact the two measurement pins, because the essence of this situation is the formation of a short circuit in the case of charging.
3, the detection of power supply filter capacitors, electrolytic capacitors should be short-circuited positive and negative poles, and short-circuited, do not use the meter pen line instead of wire discharge capacitors, because it is easy to burn off the core wire.
4, in the wet environment to test the meter failure, the printed line with a multimeter to measure its points is necessary, due to the main failure in this case is the copper foil corrosion.
5, check the internal circuit of the instrument, if the installation of components of the contacts and circuit boards coated with the end of the varnish, measuring the parameters of the points can be used to ordinary hand sewing needle welded to the pen of the multimeter, in order to puncture the paint layer directly measure the points, without having to peel off a large area of the paint layer.
6, do not electrically plug and unplug all kinds of control boards and plugs. As in the case of electricity, plugging and unplugging the control board will produce a strong inductive electromotive force, when the instantaneous backlash voltage is very high, it is easy to damage the corresponding control board and plug.
7, do not blindly knock and touch the inspection, so as not to expand the fault, the more repair the worse.
8, disassemble, adjust the meter, should record the original position for recovery.
9, repair precision instruments and meters, such as inadvertently popping small parts, should first determine the possible fly off the place, do not look for the East, West, you can take the magnet scanning and line-of-sight scanning methods to look for.