The laser beammodulation frequency has been increased to achieve better accuracy. The circuit has been designed in a simple manner to reduce unexpected error and debugging complexity.
And for the frame beam end bending moment amplitude modulation factor seems embodiment its value in practice projects.
框架梁端的弯矩调幅系数的合理取值的价值在实际工程中似乎更能体现出来。
3
Selection of active outdoor infrared detectors, active infrared transmitter sent a bouquet of the infrared beam by the modulation, into the infrared receiver to form a cordon.