sound gate

The circuit which is designed by using counter 、 decipherer and not gate digital IC, has the multifunction of the sound light displaying 、 overtime alarming and electronical tally. It can be used in manifold intelligence competition situation.

利用计数器、译码器、非门等数字集成电路设计的抢答电路具有声光显示、超时报警与电子计分等多种功能，适用于各种智力竞赛场所。

A Sound Prompt Device of Protecting an Elevator Gate From Jostle

电梯轿门防倚靠语音提示装置

Numerical Simulation of the Sound Field Generated by Gate Valve Inner Leakage

闸阀气体内漏喷流声场的数值模拟

I wonder how long does it go, musical sound push the gate of tea open finally.

不知走了多久, 韵终于推开了那间茶吧的大门.

The monitoring system of gate can display the gate opening, the system load, direct load and other important real-time parameter, the dynamic simulation display of gate, sound and light alarm function, gate up and down and stop control function, system parameter setting function.

上位闸门监控系统能够实时显示闸门开度、系统荷载、直接荷载等重要实时参数；闸门提升动态模拟显示功能；声光报警功能；闸门升、降、停实时上位控制功能；系统参数上位设置功能。