How To Improve The Reliability Of PCB Equipment (2)

(6) Make full use of software resources.

Due to the flexibility of software programming, software resources should be fully utilized in the design.At present, there are relatively many software debugging methods and tools, which are easy to locate faults and design problems, and the resolution cycle is relatively short.

Making full use of software resources is an important method to improve reliability.

(7) Reliable structure, mature and advanced technology.

In the circuit and structure design, the number of connectors and metallized holes should be minimized. Circuit components and chips should be directly soldered on the printed board as far as possible. Surface mount devices should be selected and surface mount technology should be used to avoid poor contact., To ensure the reliability of the equipment.

(8) Thermal design. 　　

Excessively high temperature is one of the important factors that cause the equipment performance and reliability to decrease. For this reason, thermal protection measures should be taken to control and reduce the temperature rise of the equipment during operation, ensure good heat dissipation, and improve the thermal reliability of the equipment. 　　 Too low temperature will also cause equipment performance and reliability to decrease, and some components will not work normally when the ambient temperature is too low. Therefore, equipment used in a low-temperature environment must also be subjected to low-temperature testing. The temperature conditions and environment of the equipment must be considered when designing. 　　

(9) Electromagnetic compatibility design. 　　

When the equipment is working, it will be interfered by many electromagnetic fields, both natural and man-made. This is especially true for military equipment. In modern high-tech electronic warfare, a very important technical means is to locally emit high-energy electromagnetic waves to destroy the components in the opponent's equipment, thereby causing the equipment to fail. To this end, effective shielding, filtering and other anti-interference measures should be taken to prevent noise and interference electromagnetic fields from interfering with the equipment to ensure reliable operation of the equipment. 　　

(10) Anti-vibration design. The equipment will be affected by various vibrations and shocks during use and transportation, which will affect its reliability. For this reason, the mechanical strength and rigidity of the equipment should be improved, and vibration damping and buffering measures should be taken to strengthen the equipment's resistance to vibration and shock. The ability to improve the reliability of the equipment.

(11) Use fault indication device.

Design fault detection circuit and fault alarm device to find faults in time, thereby shortening the troubleshooting time of equipment.

(12) Simple operation and convenient maintenance.The function of operation and maintenance in the equipment is one of the main factors to ensure the reliability of the equipment.In the design, plug-in units and modules should be used as much as possible, while modularization, standardized structure and quick disassembly structure should be adopted to facilitate operation and maintenance.Facts have proved that the modular structure of the equipment can greatly simplify operation and facilitate maintenance.