The valve use medium pressure of its own, control and turn off with a delay function to eliminate or alleviate the water hammer.
利用介质自身的压力，控制并具有延时关闭功能，从而消除或缓解水锤的智能型止回阀。
Introduces function, hardware structure and principle of digital display hammer, and it's digital measure method is analyzed.
介绍智能数显回弹仪的功能、硬件组成及其工作原理，并对回弹值的数字化测量方法进行了分析。
This paper describes drop hammer hydraulic dynamic calibration device's operating principle and its main function. The problems of the current calibration methods are also studied in details.
该文介绍了落锤液压动标装置的工作原理及其主要功能，分析了现有校准方法存在的问题。
Meanwhile, the pressure regulating pool has multi-function of pressure, discharge regulating, and water hammer preventing.
同时调压池具有调节压力、流量及防水锤等功能。
The resonance method excited by sine sweeping and the transfer function method excited by hammer impact are adopted.
试验分别采用正弦激励模态共振法和锤击激励传递函数测量法。
Presently, by practices, its comprehensive function is superior to the cone crusher and the hammer crusher.
目前，经实践反击式破碎机综合性能优于圆锥破和锤式破碎机。
This paper describes drop hammer hydraulic dynamic calibration device's operating principle and its main function.
该文介绍了落锤液压动标装置的工作原理及其主要功能，分析了现有校准方法存在的问题。
This paper describes drop hammer hydraulic dynamic calibration device's operating principle and its main function.
该文介绍了落锤液压动标装置的工作原理及其主要功能，分析了现有校准方法存在的问题。
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