磁致伸缩液位计由三部分组成：探测杆，电路单元和浮子组成。具有HART协议，可远程调整零点和量程。也可通过机壳内三个按键与LCD液晶进行各种参数调整。可组态的参数包括单位、显示上下限、阻尼、平移修正、校准上下限、数模微调校正、恢复出厂设定。该液位计测量时，电路单元产生电流脉冲，该脉冲沿着磁致伸缩线向下传输，并产生一个环形的磁场。在探测杆外配有浮子，浮子沿探测杆随液位的变化而上下移动。由于浮子内装有一组永磁铁，所以浮子同时产生一个磁场。当电流磁场与浮子磁场相遇时，产生一个“扭曲”脉冲，或称“返回”脉冲。将“返回”脉冲与电流脉冲的时间差转换成脉冲信号，从而计算出浮子的实际位置，测得液位。

 

　　The magnetostrictive level gauge is composed of three parts:the detection rod,the circuit unit and the float.With HART protocol,zero point and range can be adjusted remotely.Various parameters can also be adjusted through the three buttons in the case and LCD liquid crystal.The configurable parameters include units,display upper and lower limits,damping,translation correction,calibration upper and lower limits,digital-analog fine-tuning correction,and factory reset.When the level gauge is measuring,the circuit unit generates a current pulse,which is transmitted down the magnetostrictive line and generates a circular magnetic field.A float is equipped outside the probe rod,and the float moves up and down along the probe rod as the liquid level changes.Since the float is equipped with a set of permanent magnets,the float generates a magnetic field at the same time.When the current magnetic field meets the float magnetic field,a"twisting"pulse,or"returning"pulse,is generated.The time difference between the"return"pulse and the current pulse is converted into a pulse signal to calculate the actual position of the float and measure the liquid level.

 

　　磁致伸缩液位计假液位处理：

 

　　Treatment of false liquid level of magnetostrictive liquid level gauge:

 

　　1.外界干扰信号过大，造成电路得到的是假的信号，不是实际测量的信号；

 

　　1.The external interference signal is too large,causing the circuit to get a false signal,not the actual measured signal;

 

　　2.液位计内部的波导丝故障，如松动、密封不好进水锈蚀等，造成信号失真；

 

　　2.Failure of the waveguide wire inside the level gauge,such as looseness,poor sealing,water ingress and corrosion,etc.,causing signal distortion;

 

　　3.波导丝安装不正确，信号传递失真；

 

　　3.The waveguide wire is not installed correctly and the signal transmission is distorted;

 

　　4.信号处理电路故障。

 

　　4.The signal processing circuit is faulty.

 

　　华恒仪表可以为您提供专业的磁致伸缩液位计选型建议和可靠的磁致伸缩液位计产品，有任何疑问可以致电180 9235 6836，我们会有专业的技术人员帮您解答，希望能带给您帮助！

 

　　Huaheng Instrument can provide you with professional magnetostrictive level gauge selection suggestions and reliable magnetostrictive level gauge products.If you have any questions,you can call 180 9235 6836,and we will have professional technicians to help you answer.Hope Can bring you help！

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