井下速度检测部分以单片机为核心，通过霍尔速度传感器实时检测速度，超速后即会报警提示，并将超速信息进行存储。
Underground speed detection which based on single chip will real-time detect rate through the hall speed sensor, alarm and prompt after speeding, and store the information of speeding.
详细介绍霍尔速度传感器，里程计数脉冲的产生，步进电机的驱动和BL 2115集成电路在电子式车速里程表中的应用。
The Hall speed transducer, the generation of the mileage pulse, the driving of step motor and the application of integrated circuit of BL2115 in speedometer are introduced in detail.
本文在转速采样环节采用霍尔速度传感器作为电机速度采样器件，并且采用了M法和T法混合的方法进行测速，这样在低速和高速时都能保证采样精度。
In the aspect of speed sample, HALL speed sensor is adopt, and combined the m method and t method, so the sample precision can be ensured both in the high speed moment and low speed moment.
同时利用霍尔传感器将电机速度转换成脉冲频率反馈到单片机中，实现转速闭环控制，达到转速检测目的。
At the same time using Holzer sensors will be converted into pulse frequency motor speed feedback to the MCU, realize the speed closed-loop control, to achieve speed detection.
位置和速度的检测采用高精度的旋转变压器和电机同轴相连，电流的检测采用霍尔电流传感器，具有很高的检测精度。
The high-precision resolver was connected to PMSM with the same shaft to detect the position and speed of PMSM, and Hall current sensor was adopted to detect current of PMSM.
以at89s51单片机为核心，A44e霍尔传感器测转速数，实现对自行车速度的测量，并能将自行车的速度用LCD实时显示。
On AT89S51 as the core, A44E hall sensors, and to realize the bicycle speed number, and velocity measurements can be bicycle speed with LCD real-time display.
采用耐高温的锁定型霍尔元件和钐钴永磁转子分别构成位置与速度传感器，并设计相应的速度信号倍频电路与位置信号译码电路。
Fireresistant Hall device and SmCo rotor is used to design position and speed sensor, and the corresponding doubling circuit and decoding circuit is designed.
采用新型的霍尔集成传感器研究成功了霍尔数字式汽车速度表。
A digital metrograph using a new-type integrated Hall switching transducer is studied.
采用新型的霍尔集成传感器研究成功了霍尔数字式汽车速度表。
A digital metrograph using a new-type integrated Hall switching transducer is studied.
应用推荐