There are many kinds of instruments and meters, and they are widely used in many fields. Because of this, the problem of faults in the use of instrumentation is also very much, so usually need to pay more attention to the maintenance and maintenance of the instrumentation, can effectively improve the performance of the instrumentation, and can extend its service life. Here is a brief introduction to the precautions for instrument maintenance and maintenance:
1. When using the logic pen and oscilloscope to detect signals, be careful not to make the probe touch the two measurement pins at the same time, because the essence of this situation is to form a short circuit under power-on. When detecting the filter capacitor in the power supply, first short-circuit the positive and negative terminals of the electrolytic capacitor, and do not use the test lead wire instead of the wire to discharge the capacitor when short-circuiting.
Because it is easy to burn the core wire. You can take a 220V, 60 ~ 100W lamp with a lamp lead, connected to the two ends of the capacitor, the bulb will flash when the battery is discharged.
2. When repairing instrumentation faults in a humid environment, it is necessary to measure the smoothness of each point on the printed circuit with a multimeter.
Because the main fault in this case is copper foil corrosion.
3. When repairing the internal circuit of the instrument, if the contact points of the mounted components and the circuit board are coated with insulating varnish, [Industrial Electrical Network-cnelc] can measure the parameters of each point by ordinary hand stitching on the meter of the multimeter, so as to puncture Wear the paint layer to measure each point directly, instead of stripping the paint layer over a large area, do not plug and unplug various control boards and plugs.
Because in the case of power-on, the plug-in control board will generate a strong induced electromotive force, and the instantaneous counter-attack voltage is very high, which easily damages the corresponding control board and plug.
4, when repairing the instrumentation, do not blindly knock and knock, so as not to expand the fault, the more repaired the worse.
5. When disassembling and adjusting the instrument, the original position should be recorded for recovery.
6. When repairing precision instruments and meters, if you accidentally fly a small part, you should first judge where it may fly. Do not look east, turn it over, you can use magnet scanning and line-of-sight scanning method to find.
7. In the instrument maintenance work, first understand the basic principles of instrumentation, and master the knowledge and skills related to electronics, and should prepare all the instrument manuals, drawings and other technical materials, and should develop a kind of Good work quality, so as to improve efficiency and reduce mistakes in the maintenance work of instrumentation.
The above content is the content that should be paid attention to for the maintenance and maintenance of the instrumentation introduced for everyone. I hope everyone can master these. Although there are some simple methods, the use of the user is very large.
What is a miniature slip ring? Miniature slip rings are rotary electrical connectors that allow power and data to be transferred between a stationary and rotating structure. They are often used in medical, military, and aerospace applications where size and weight are critical factors.
A miniature slip ring typically consists of two parts: a stationary housing and a rotating contact assembly. The contact assembly contains the brushes that make electrical contact with the rotating structure, as well as the rings that conduct current or data.
The housing can be made from any number of materials, including metals, plastics, and composites. It is typically designed to be as small and lightweight as possible while still providing adequate strength and durability.
The contact assembly is made from precious metals such as gold or silver in order to provide good electrical conductivity.
Technology improves with the continuous development of precision machinery. The more sophisticated the equipment, the smaller the volume will be. And the space that can be accommodated for installing the slip ring is also very small. The key parts of some equipment are quite a district. Especially in the high-end military, aerospace and aviation fields. 360-degree rotation is required to transmit current and signals. And the installation space is greatly reduced. It is to make the equipment work more smoothly. Therefore, it is necessary to design the slip ring to be small and exquisite. Otherwise, it won't meet the needs of the installation.
At the same time, we have moved with the continuous development of science and technology. Various high-end precision instruments have been developed. It requires the slip ring to transmit the current amount of general power. Also often undertake the transmission of weak electrical signals and various weak signals. The transmission medium is wider, and the number of loops of the slip ring is increasing.
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