带语音功能的数字转速表

系统采用凌阳十六位单片机SPCE061A实现转速测量，转速信号由LTHl650红外反射光电传感器和放大电路、滤波电路、整形电路提供。通过M／T算法实现对电机转速的实时测量，具有转速最大值、最小值、平均值的数字语音播报和显示及加速度显示；另外还有转速超限报警功能，通过键盘手工输入转速上限值，当所测量的转速超过这个值，发出语音报警。

The digital speedometer with pronunciation

This system adopts SPCE061A realizing rotational speed measurement.The rotational speed signal is reflect the photoelectric sensor and amplifies the circuit infraredly,strain the wave circuit,has a facelift in the circuit to offer by LTH1650.Realize the real-time measurement to the rotational speed of the electrical machinery through M/T algorithm,have rotational speed maximums,the minimum,the digital speech of the average reports and shows,the acceleration shows;There is ultra warning function of limit of rotational speed in addition,input the limit on the rotational speed by hand through the keyboard,as the rotational speed measured exceeds this value,emit the warning sound.