Vm501 development kit development version single vibrating wire sensor acquisition module geotechnical engineering monitoring

    Development board （demo board） It is a circuit board used for embedded system development , Including the CPU 、 Memory 、 input device 、 Output devices 、 Data access / Bus and external resource interface and other hardware components . Development boards are generally customized by embedded system developers according to their development needs , It can also be researched and designed by users . The development board is for beginners to understand and learn the hardware and software of the system , At the same time, some development boards also provide basic integrated development environment, software source code and hardware schematic diagram . Common development boards are 51、ARM、FPGA、DSP Development board .

 

    VM501 The goal of the suite is to minimize the time between power on and the first output of the correct results , namely ： Energy after power on It can quickly output the first set of correct frequency values and temperature values . The first measurement is forced to use the fixed frequency sweep method to excite the sensor There are two parameters that affect the first measurement duration , The number of output excitation signals and the number of return signal samples
Advantages
  Small volume , Easy to use .
  Industrial standard temperature ：-40℃~80℃.
  When powered on, the first set of correct frequency values can be output quickly .

    VM501 The series module is excited by a single vibrating wire sensor 、 Frequency reading 、 Specialized reading module for temperature conversion , It has a high degree of integration 、 Small volume 、 High precision 、 Strong adaptability 、 Few outstanding features such as peripheral circuit design , There are many incentive methods 、 Sensor access detection 、 Programmable excitation voltage 、 Advanced functions such as signal amplitude detection and signal quality evaluation .

    Be able to measure the signal quality of the sensor 、 amplitude 、 frequency 、 Frequency mode 、 The temperature is converted into digital quantity and analog quantity output , in addition , Multi way universal GPIO、12 position ADC、 Additional hardware resources such as data storage further enhance the scalability of the module .

advantage
  Strong compatibility ： It can measure the single coil vibrating wire sensor of most manufacturers .
  The sensor automatically recognizes ： Identifiable coil 50Ω~10KΩ.
  Signal amplification factor ：30~3000 times , Programmable amplifier 、 Resistance regulator .
  Various incentive methods ： Programmable high voltage excitation 、 Programmable sweep 、 Intelligent frequency sweeping .
  Temperature detection ： Thermistor /DS18B20/ Core temperature detection .

Application field ： Pit support monitoring , Automatic monitoring , Geotechnical engineering monitoring , Geological hazard monitoring .

Vibrating wire sensor is mainly used in large-scale Geotechnical Engineering , The measurement data of the multi-point vibrating wire sensor is automatically collected at a fixed time , Directly calculate and display the physical quantity value of each measuring point , And stored in the database , For analysis For research purposes . Among them, the automatic measurement unit has distributed networked measurement 、 Measurement data storage 、 Automatic timing measurement 、 Computer communication 、 Measurement data management 、 Measurement results output and other functions .