bontel 7100-3.5 inch touch screen phone & quad core-black.After the transmitting transducer transmits a narrow pulse, the sound wave energy reaches the receiving transducer through different paths, the earliest arrival at the far right, the latest arrival at the far left, and the early and late arrivals of these sonic energy are superimposed into one. It is not difficult to see that the waveform signal is wide. The received signal gathers all the sound wave energy that has returned through different paths in the X- axis direction. They have the same distance on the Y- axis, but on the X- axis, the farthest ratio is The nearest one has traveled twice the maximum X- axis distance. Therefore, the time axis of this waveform signal reflects the position before the superposition of each original waveform, that is, the X axis coordinate.

bontel 7100-3.5 inch touch screen phone & quad core-black.After the transmitting transducer transmits a narrow pulse, the sound wave energy reaches the receiving transducer through different paths, the earliest arrival at the far right, the latest arrival at the far left, and the early and late arrivals of these sonic energy are superimposed into one. It is not difficult to see that the waveform signal is wide. The received signal gathers all the sound wave energy that has returned through different paths in the X- axis direction. They have the same distance on the Y- axis, but on the X- axis, the farthest ratio is The nearest one has traveled twice the maximum X- axis distance. Therefore, the time axis of this waveform signal reflects the position before the superposition of each original waveform, that is, the X axis coordinate. IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.