Security Encyclopedia Optical Fiber Welding Engineering Technology

With the development of optical fiber communication technology, optical fiber fusion welding technology is the most extensive and basic specialized technology in the field of optical fiber applications. It is one of the basic skills indispensable for security engineering technicians.

Electromagnetic flowmeter performance characteristics


According to the characteristics of the electromagnetic flowmeter transmitter, the converter must have the following performance.
1. Stable linear amplification The electromagnetic flowmeter requires a linear amplifier with high stability to amplify a few millivolts of flow signal

Pump impeller automation options: mathematical and chemical

In general, it is difficult to design and select the best pump impeller for a given operating condition. Massimo Antonini, a pump specialist at Industrie Saleri Italo in Italy, describes a mathematical modeling approach that automates the design and selection of impellers .

Mine short wave transceiver signal safety operation procedures

1. Strictly abide by the national radio communication confidentiality system and communication code. Carefully implement the radio communication specifications. 2. Choose a person who is politically reliable, has a strong sense of responsibility, and has been trained for a week to serve as

Brushless DC pump protection What are the

1. When the driven parts of the magnetic pump actuator operate under overload conditions, the driven parts of the magnetic actuator will slip on the shaft, effectively protecting the motor .
2. Pump operation, it is necessary to use a small

Environmental standards system

According to the provisions of the (Administrative Measures for Environmental Protection Standards), China's environmental standards consist of three types and two levels.

The three categories refer to environmental quality standards, pollutant discharge standards, and environme