WO2013044690A1 - 电磁流量传感器 - Google Patents

电磁流量传感器 Download PDF

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Publication number
WO2013044690A1
WO2013044690A1 PCT/CN2012/079800 CN2012079800W WO2013044690A1 WO 2013044690 A1 WO2013044690 A1 WO 2013044690A1 CN 2012079800 W CN2012079800 W CN 2012079800W WO 2013044690 A1 WO2013044690 A1 WO 2013044690A1
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WO
WIPO (PCT)
Prior art keywords
disposed
unit
conduit
assembly
flow sensor
Prior art date
Application number
PCT/CN2012/079800
Other languages
English (en)
French (fr)
Inventor
陈怡因
陈柏志
Original Assignee
伊玛精密电子(苏州)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN2011203745164U external-priority patent/CN202255493U/zh
Priority claimed from CN201210259153.9A external-priority patent/CN103575341A/zh
Application filed by 伊玛精密电子(苏州)有限公司 filed Critical 伊玛精密电子(苏州)有限公司
Priority to DE212012000013U priority Critical patent/DE212012000013U1/de
Publication of WO2013044690A1 publication Critical patent/WO2013044690A1/zh

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/56Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
    • G01F1/58Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
    • G01F1/588Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters combined constructions of electrodes, coils or magnetic circuits, accessories therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/56Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
    • G01F1/58Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
    • G01F1/60Circuits therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06Indicating or recording devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06Indicating or recording devices
    • G01F15/061Indicating or recording devices for remote indication
    • G01F15/063Indicating or recording devices for remote indication using electrical means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/14Casings, e.g. of special material

Definitions

  • the invention relates to the field of electromagnetic flow measuring instruments, and in particular to an electromagnetic flow sensor. Background technique
  • the known electromagnetic flow sensor uses a metal conduit + lining technology, and the grounding flange is screw-connected.
  • the sensor connection part is universal flange and baffle, and it is not interchangeable.
  • the converters are available in one-piece and split versions, with different converter housings, including excitation signal generation, analog output, pulse output and communication output.
  • the conductive liquid passes, the cutting magnetic field lines generate an induced electromotive force, and the converter amplifies the signal and converts it into a corresponding flow signal output or display.
  • the existing electromagnetic flow sensor has a single assembly structure, the grounding method is inconvenient, the data acquisition is greatly affected by the environment, the structure is complicated at the same time, the processing technology is cumbersome, and the manufacturing is difficult. Summary of the invention
  • an object of the present invention is to provide an electromagnetic flow sensor with convenient grounding, flexible connection, and simple structure.
  • an electromagnetic flow sensor comprising a tube body, a meter assembly, a sensing module for sensing signals, and a conversion module for converting signals
  • the meter assembly Provided on the tube body, the sensing module is disposed in the tube body, the sensing module is electrically connected to the conversion module;
  • the sensing module comprises a catheter assembly, an electromagnetic component and an electrode, and the electromagnetic An assembly is disposed on the conduit assembly, the electrode is disposed on the conduit assembly;
  • the conduit assembly includes a conduit and a grounding ring, the grounding ring is disposed at two ends of the conduit, and the two ends of the conduit are provided at the two ends of the conduit Connected threaded shank.
  • the display head assembly is provided with a display screen and a button with adjustable display.
  • the conversion module is disposed on a circuit board; the conversion module includes
  • the display screen is electrically connected to the display unit, and the button is electrically connected to the control unit.
  • the electromagnetic component is horizontally disposed in the middle of the duct.
  • the electrode is disposed vertically in the middle of the conduit.
  • the catheter is further provided with an electrode holder for fixing the electrode, and the electrode is disposed in the electrode holder.
  • the conduit is an integrally formed tubular body.
  • the two ends of the conduit are further provided with a sealing device for sealing connection when the pipeline is connected.
  • the conversion module further comprises a wireless HART unit for wirelessly transmitting data, the wireless HART unit being electrically coupled to the MCU processing unit.
  • the sensing module comprises a catheter assembly, an electromagnetic component and an electrode
  • the electromagnetic component is disposed on the catheter assembly
  • the electrode is disposed on the catheter assembly
  • the catheter assembly comprises A conduit and a grounding ring are disposed at both ends of the conduit, and both ends of the conduit are provided with a threaded member for connection.
  • Figure 1 is a schematic view of the structure of the present invention.
  • Figure 2 is a schematic view of the explosion of the present invention.
  • FIG. 3 is a schematic structural view of a conversion module of the present invention.
  • FIG. 4 is a schematic structural diagram of a conversion module according to Embodiment 3 of the present invention.
  • Tube body 1. Tube body 2. Head assembly 3. Catheter 4. Pole piece 5. Wire ⁇ 6. Yoke 7. Electrode 8. Seal ring 9. Ground ring 10. Sealing groove 11. Threaded member 12. Electrode holder 13 Display 14. Button 15. Board. detailed description
  • an electromagnetic flow sensor of the present invention comprises a pipe body 1, a meter assembly 2, a sensing module for sensing signals, and a conversion module for converting signals, and the head assembly 2 is disposed at On the pipe body 1, the sensing module is disposed in the pipe body 1, and the sensing module is electrically connected to the conversion module.
  • the pipe body 1 is a steel pipe, and may be a stainless steel pipe, a carbon steel pipe or a PPV pipe depending on the application.
  • the sensing module includes a catheter assembly, an electromagnetic assembly, and an electrode 7, the electromagnetic assembly being disposed on the catheter assembly, and the electrode 7 disposed on the catheter assembly.
  • the electromagnetic assembly is horizontally disposed in the middle of the duct 3, and the electrode 7 is vertically disposed in the middle of the duct 3.
  • the conduit assembly includes a conduit 3 and a grounding ring 9 provided at both ends of the conduit 3 with a threaded member 11 for connection, the grounding ring 9 is disposed at both ends of the conduit 3, and the grounding ring 9 is fixedly coupled to the conduit 3 by screws.
  • the sealing device is a sealing dam 8.
  • the sealing groove 10 is arranged at both ends of the pipe 3.
  • the sealing ring 8 is disposed in the sealing groove 10, and the sealing ring 8 and the sealing groove 10 are matched, and the sealing connection is realized by the sealing cymbal 8. Since the sensor body is mainly flanged and connected, the screw connection and sealing connection and accessories can realize four different connection modes such as clamping connection, flange connection, thread connection and food clamp connection. , flexible connection.
  • the electromagnetic assembly includes a pole target 4, a coil 5, and a yoke 6, the pole piece 4 is disposed on the duct assembly, the coil 5 is disposed on the pole piece 4, and the yoke 6 is sleeved outside the coil 5.
  • the pole piece 4 and the wire loop 5 are sequentially connected to the catheter 3 by fixing bolts, two of the wire loop 5 and the pole piece 4 are respectively provided, and the wire loop 5 and the pole piece 4 are respectively horizontally symmetrically disposed on the catheter. 3 middle.
  • the electrode 7 is provided with two, and the electrode 7 is vertically symmetrically disposed in the middle of the duct 3.
  • the catheter 3 is also provided with an electrode holder 12 for fixing the electrode 7, and the electrode 7 is disposed in the electrode holder 12.
  • the conduit 3 is an integrally formed tubular body.
  • the catheter 3 adopts a immersed injection molding process instead of the traditional lining process, so that the roughness of the inner hole of the conduit 3 reaches 1.6. Since the catheter 3 uses an injection molding process, the sensor has a simple structure, complete functions, and simple processing. At the same time, under the premise of ensuring performance, the consistency and reliability of the parts are improved, and the cost is also saved.
  • the conversion module is disposed on the circuit board 15, and the circuit board 15 is disposed outside the yoke 6.
  • the conversion module includes an MCU processing unit for controlling processing of each unit of the conversion module, for detecting flow and converting signals. a signal processing unit, a signal output and a communication unit for outputting the processed signal, and an electrical connection for the unit for supplying power to each unit of the conversion module, the signal processing unit, the signal output and communication unit, and the MCU processing unit respectively
  • the power unit is electrically connected;
  • the conversion module further includes a display unit for displaying the processed result and a control unit for performing an external control operation, and the display unit and the control unit are electrically connected to the MCU processing unit, respectively.
  • the power unit input 24VDC generates three independent power supplies through the DCtoDC chip LM317K and the transformer chip to supply power to the system; the signal processing unit generates a magnetic field by the excitation circuit, the sensor detects the flow signal under the action of the magnetic field, and converts the flow signal into an electrical signal, small
  • the signal amplifying circuit amplifies the detected signal processing and then sends it to the MCU processing unit via A/D sampling. Since the MCU uses the C8051F124 chip, it has 128K Flash, 8K RAM control excitation, signal acquisition, signal output, human-computer interaction, communication.
  • the function is such that the MCU processing unit processes the A/D sampled data and transmits it to the display unit, the signal output unit and the communication unit respectively; the signal output and communication unit directly outputs the analog 4-20 mA with HART after processing the data processed by the MCU.
  • the digital output is realized by the I/O switch quantity control circuit; the display unit displays the output status through the liquid crystal display, and is set by the film button to realize human-computer interaction.
  • CC2530 4 ⁇ good networking characteristics are used to realize cascaded network multi-level communication.
  • the rest is the same as in the first embodiment except that the display unit 2 is provided with an adjustable display screen 13 and a button 14.
  • the display screen 13 is electrically connected to the display unit, and the display screen 13 is a liquid crystal display screen which realizes the front view effect by horizontally and vertically when the flip display is controlled by software, and can be uniquely flipped and displayed, and can have a front view effect when installed horizontally and vertically.
  • the screen can also be 90. Switch the display direction.
  • the button 14 is electrically connected to the control unit, and the button is a capacitive touch button.
  • the consumer electronic bright touch button solution is introduced to achieve the industry standard working range, and the product is better protected by IP67.
  • the rest is the same as Embodiment 1, except that the conversion module further includes a wireless HART unit for wirelessly transmitting data, and the wireless HART unit is electrically connected to the MCU processing unit.
  • the wireless HART unit With wireless wireless communication based on Wi re les sHART, remote wireless meter reading can be performed, which makes the user access to the device convenient and the work efficiency is improved.
  • the signal output and communication unit directly outputs the analog 4-20mA with HART after the data processed by the MCU, and realizes wireless transmission through the COM port and the wireless HART module, and controls the power through the I/O switch.
  • the circuit implements the switching output.
  • the wireless HART module uses WirelessHART-based industrial wireless communication, it is a wireless communication network topology protocol designed for process automation applications.
  • the network is compatible with operation.
  • the electromagnetic flow sensor has the wireless communication function, and provides the function of wireless meter reading for the customer, thereby improving work efficiency.
  • the rest is the same as the first embodiment.
  • the conversion module can also use the GPRS communication module to realize the Internet remote login host computer software communication, which realizes flexible and multi-mode monitoring of the electromagnetic flow sensor operating state.
  • the sensing module comprises a catheter assembly, an electromagnetic component and an electrode
  • the electromagnetic component is disposed on the catheter assembly
  • the electrode is disposed on the catheter assembly
  • the catheter assembly comprises A conduit and a grounding ring are disposed at both ends of the conduit, and both ends of the conduit are provided with a threaded member for connection.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring Volume Flow (AREA)

Abstract

一种电磁流量传感器,包括管体(1)、表头装配体(2)、用于感应信号的传感模块和用于转换信号的转换模块,所述表头装配体(2)设置在所述管体(1)上,所述传感模块设置在所述管体(1)内,所述传感模块与所述转换模块电气连接;所述传感模块包括导管组件、电磁组件和电极(7),所述电磁组件设置在所述导管组件上,所述电极(7)设置在所述导管组件上;所述导管组件包括导管(3)和接地环(9),所述接地环(9)设置在所述导管两端,所述导管两端设有用于连接的螺纹坎件(11)。采用本技术方案的有益效果是:接地方式方便,连接灵活,结构简单,方便灵活采集数据。由于传感器本体以法兰加持型连接为主,所以采用螺钉装配及配件,可以实现多种不同的连接方式。

Description

电磁流量传感器 技术领域
本发明涉及电磁流量测量仪表领域, 具体涉及一种电磁流量传感 器。 背景技术
目前, 公知的电磁流量传感器, 传感器采用金属导管 +衬里技术, 接地法兰采用螺钉外接方式。 传感器连接部分通用式法兰和加持两 种, 并且不能互换。 转换器装配方式有一体式和分体式两种, 采用不 同转换器壳体, 功能包括励磁信号产生, 模拟量输出, 脉沖输出和通 讯输出等。 当导电液体通过时, 切割磁力线产生感生电动势, 转换器 放大此信号并转换为相应的流量信号输出或显示。 现有的电磁流量传 感器装配结构单一, 接地方式不方便, 数据采集受环境影响较大, 同 时结构复杂, 加工工艺繁瑣, 制造困难。 发明内容
为解决上述技术问题, 本发明的目的在于提供一种电磁流量传感 器, 接地方式方便, 连接灵活, 结构简单。
为达到上述目的,本发明的技术方案如下:一种电磁流量传感器, 包括管体、 表头装配体、 用于感应信号的传感模块和用于转换信号的 转换模块, 所述表头装配体设置在所述管体上, 所述传感模块设置在 所述管体内, 所述传感模块与所述转换模块电气连接; 所述传感模块 包括导管组件、 电磁组件和电极, 所述电磁组件设置在所述导管组件 上, 所述电极设置在所述导管组件上; 所述导管组件包括导管和接地 环, 所述接地环设置在所述导管两端, 所述导管两端设有用于连接的 螺紋坎件。
优选的, 所述表头装配体上设有显示可调的显示屏和按键。
优选的, 所述转换模块设置在电路板上; 所述转换模块包括用于
1
更正页 细 控制处理所述转换模块各单元的 MCU处理单元, 用于检测流量及转换 信号的信号处理单元, 用于将处理好的信号进行输出的信号输出及通 讯单元, 用于为所述转换模块各单元供电的电源单元; 所述信号处理 单元与所述信号输出及通讯单元分别与所述 MCU处理单元进行电气连 接, 所述信号处理单元、 所述信号输出及通讯单元、 所述 MCU处理单 元分别与所述电源单元进行电气连接; 所述转换模块还包括用于显示 处理后结果的显示单元和用于进行外部控制操作的控制单元, 所述显 示单元、 所述控制单元分别与所述 MCU处理单元电气连接。
优选的, 所述显示屏与所述显示单元电气连接, 所述按键与所述 控制单元电气连接。
优选的, 所述电磁组件水平设置在所述导管中部。
优选的, 所述电极垂直设置在所述导管中部。
优选的, 所述导管还设有用于固定所述电极的电极座, 所述电极 设置在所述电极座内。
优选的, 所述导管为一体成型的管体。
优选的, 所述导管两端还设有用于管路连接时密封连接的密封装 置。
优选的, 所述转换模块还包括用于对数据进行无线传输的无线 HART单元, 所述无线 HART单元与所述 MCU处理单元电气连接。
采用本技术方案的有益效果是: 由于传感模块包括导管组件、 电 磁组件和电极, 所述电磁组件设置在所述导管组件上, 所述电极设置 在所述导管组件上; 所述导管组件包括导管和接地环, 所述接地环设 置在所述导管两端, 所述导管两端设有用于连接的螺纹坎件。 接地方 式方便, 连接灵活, 结构简单, 方便灵活采集数据。 通过在导管的两 个端面上设置螺紋坎件, 由于传感器本体以法兰加持型连接为主, 所 以通过螺钉装配及配件, 可以实现夹持连接 、 法兰连接、 螺纹连接、 食品卡箍连接等多种不同的连接方式。 附图说明
2
更正页 (细则第 9 1条) 为了更清楚地说明本发明实施例技术中的技术方案, 下面将对实 施例技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面 描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以才艮据这些附图获得其他 的附图。
图 1为本发明的结构示意图。
图 2为本发明的爆炸示意图。
图 3为本发明的转换模块结构示意图。
图 4为本发明实施例 3的转换模块结构示意图。
图中数字和字母所表示的相应部件名称:
1.管体 2.表头装配体 3.导管 4.极靴 5.线圏 6.磁轭 7.电极 8.密 封圈 9.接地环 10.密封槽 11.螺紋坎件 12.电极座 13.显示屏 14.按键 15.电路板。 具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术方 案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部 分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普 通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
实施例 1
如图 1所示, 本发明的一种电磁流量传感器, 包括管体 1、 表头 装配体 2、 用于感应信号的传感模块和用于转换信号的转换模块, 表 头装配体 2设置在管体 1上, 传感模块设置在管体 1内, 传感模块与 转换模块电气连接。 本实施例中, 管体 1为钢管, 根据不同的使用场 合, 还可以为不锈钢管、 碳钢管或 PPV管。
传感模块包括导管组件、 电磁组件和电极 7, 电磁组件设置在导 管组件上, 电极 7设置在导管组件上。 电磁组件水平设置在导管 3中 部, 电极 7垂直设置在导管 3中部。 导管组件包括导管 3和接地环 9, 导管 3两端设有用于连接的螺 紋坎件 11 ,接地环 9设置在导管 3两端,接地环 9与导管 3通过螺钉 固定连接。 导管 3两端还设有用于管路连接时密封连接的密封装置, 通过密封装置实现密封连接。 实施例中, 密封装置为密封圏 8, 导管 3两端设有密封槽 10, 密封圈 8设置在密封槽 10内, 密封圈 8和密 封槽 10相匹配, 通过密封圏 8实现密封连接。 由于传感器本体以法 兰加持型连接为主, 所以通过螺钉装配配合密封连接及配件, 可以实 现夹持连接、 法兰连接、 螺纹连接、 食品卡箍连接等四种不同的连接 方式, 接地方式方便, 连接灵活。
电磁组件包括极靶 4、线圏 5、磁轭 6 ,极靴 4设置在导管组件上, 线圈 5设置在极靴 4上, 磁轭 6套设在线圈 5外。 本实施例中, 通过 固定螺栓将极靴 4和线圏 5依次连接于导管 3上, 线圏 5和极靴 4分 别设有两个, 并且线圏 5和极靴 4分别水平对称设置在导管 3中部。 电极 7设有两个, 并且电极 7垂直对称设置在导管 3中部。 导管 3还 设有用于固定电极 7的电极座 12, 电极 7设置在电极座 12内。
导管 3为一体成型的管体。 导管 3采用埋入射出的注塑工艺, 代 替了传统的衬里工艺, 使得导管 3内孔的粗糙度达到 1. 6, 由于导管 3使用注塑成型工艺, 使传感器结构简单、 功能齐全、 加工工艺简单, 同时在保证性能的前提下, 提高了零件的一致性、 可靠性, 还节省了 成本。
如图 3所示, 转换模块设置在电路板 15上, 电路板 15设置在磁 轭 6外侧; 转换模块包括用于控制处理所述转换模块各单元的 MCU处 理单元, 用于检测流量及转换信号的信号处理单元, 用于将处理好的 信号进行输出的信号输出及通讯单元, 用于为转换模块各单元供电的 单元进行电气连接, 信号处理单元、 信号输出及通讯单元、 MCU处理 单元分别与电源单元进行电气连接; 转换模块还包括用于显示处理后 结果的显示单元和用于进行外部控制操作的控制单元, 显示单元、 控 制单元分别与 MCU处理单元电气连接。
4
更正页 (细则第 9 1 条) 电源单元输入 24VDC通过 DCtoDC芯片 LM317K和变压芯片产生三 路隔离电源给系统供电; 信号处理单元由励磁电路产生磁场, 传感器 在磁场的作用下检测流量信号, 并将流量信号转换为电信号, 小信号 放大电路将检测到的信号处理放大, 然后经 A/D采样送给 MCU处理单 元; 由于 MCU采用 C8051F124芯片, 其具有 128K Flash, 8K RAM控 制励磁、 信号采集、 信号输出、 人机交互、 通讯等功能, 所以 MCU处 理单元将 A/D采样的数据处理后分别传送给显示单元、信号输出单元 及通讯单元; 信号输出及通讯单元将 MCU处理的数据后直接输出模拟 量 4— 20mA带 HART, 通过 I /O开关量控制电路实现开关量输出; 显示 单元通过液晶显示屏显示输出状态, 并通过贴膜按键来进行设置, 实 现人机交互。 同时, 采用 CC2530 4艮好的组网特性, 实现级联组网多 级通讯。
实施例 2
如图 2所示, 其余与实施例 1相同, 不同之处在于, 表头装配体 2上设有显示可调的显示屏 13和按键 14。 显示屏 13与显示单元电气 连接, 显示屏 13为通过软件控制翻转显示, 实现水平及垂直安装时 达到正视效果的液晶显示屏, 可以独特翻转显示, 现场安装水平与垂 直安装时均能有正视效果, 屏幕还可以 90。 切换显示方向。 按键 14 与控制单元电气连接, 按键为电容式触控按钮, 引入消费类电子炫彩 触控感按键方案, 达到工业标准工作范围, 为产品做到更好 IP67 防 护。 通过采用软件设置, 智能识别流量方向, 流量方向双向可识别, 现场安装时可以不用考虑产品安装方向, 对施工有很大便利。
实施例 3
如图 4所示, 其余与实施例 1相同, 不同之处在于, 转换模块还 包括用于对数据进行无线传输的无线 HART单元, 无线 HART单元与所 述 MCU处理单元电气连接。采用基于 Wi re les sHART 的工业无线通信, 可以进行远程无线抄表, 使用户接入设备方便, 工作效率提高。 信号 输出及通讯单元将 MCU处理的数据后直接输出模拟量 4一 20mA带 HART, 通过 COM口和无线 HART模块实现无线传输, 通过 I /O开关量控制电 路实现开关量输出,同时,由于无线 HART模块采用基于 WirelessHART 的工业无线通信, 它是一种专门为过程自动化应用设计的无线网格拓 朴结构的网络通信协议, 该网络使用兼容运行在 2. 4GHz工业、 科学 和医药频段上的无线电 IEEE802. 15. 4 标准, 无线电采用直接序列扩 频、 通信安全与可靠的信道跳频、 时分多址同步、 网络上设备间延控 通信技术。 通过设置无线 HART单元, 使得所述的电磁流量传感器具 备无线通讯功能,为客户提供进行无线抄表的功能,提高了工作效率。
实施例 5
其余与实施例 1相同, 不同之处在于,转换模块还可以选用 GPRS 通讯模块实现 Internet 远程登陆上位机软件通讯, 实现灵活、 多方 式监控电磁流量传感器的运行状态。
采用本技术方案的有益效果是: 由于传感模块包括导管组件、 电 磁组件和电极, 所述电磁组件设置在所述导管组件上, 所述电极设置 在所述导管组件上; 所述导管组件包括导管和接地环, 所述接地环设 置在所述导管两端, 所述导管两端设有用于连接的螺紋坎件。 接地方 式方便, 连接灵活, 结构简单, 方便灵活采集数据。 通过在导管的两 个端面上设置螺纹坎件, 由于传感器本体以法兰加持型连接为主, 所 以通过螺钉装配及配件, 可以实现夹持连接、 法兰连接、 螺紋连接、 食品卡箍连接等多种不同的连接方式。
对所公开的实施例的上述说明, 使本领域专业技术人员能够实现 或使用本发明。 对这些实施例的多种修改对本领域的专业技术人员来 说将是显而易见的, 本文中所定义的一般原理可以在不脱离本发明的 精神或范围的情况下, 在其它实施例中实现。 因此, 本发明将不会被 限制于本文所示的这些实施例, 而是要符合与本文所公开的原理和新 颖特点相一致的最宽的范围。
6
更正页 细 9 1条

Claims

1.一种电磁流量传感器, 其特征在于, 包括管体、 表头装配体、 用 于感应信号的传感模块和用于转换信号的转换模块, 所述表头装配体设 置在所述管体上, 所述传感模块设置在所述管体内, 所述传感模块与所 述转换模块电气连接; 所述传感模块包括导管组件、 电磁组件和电极, 所述电磁组件设置在所述导管组件上, 所述电极设置在所述导管组件上; 所述导管组件包括导管和接地环, 所述接地环设置在所述导管两端, 所 述导管两端设有用于连接的螺紋坎件。
2.根据权利要求 1 所述的电磁流量传感器, 其特征在于, 所述表头 装配体上设有显示可调的显示屏和按键。
3.根据权利要求 1或 2所述的电磁流量传感器, 其特征在于, 所述 转换模块设置在电路板上; 所述转换模块包括用于控制处理所述转换模 块各单元的 MCU处理单元, 用于检测流量及转换信号的信号处理单元, 用于将处理好的信号进行输出的信号输出及通讯单元, 用于为所述转换 模块各单元供电的电源单元; 所述信号处理单元与所述信号输出及通讯 单元分别与所述 MCU处理单元进行电气连接, 所述信号处理单元、 所述 信号输出及通讯单元、 所述 MCU处理单元分别与所述电源单元进行电气 连接; 所述转换模块还包括用于显示处理后结果的显示单元和用于进行 外部控制操作的控制单元, 所述显示单元、所述控制单元分别与所述 MCU 处理单元电气连接。
4.根据权利要求 3所述的电磁流量传感器, 其特征在于, 所述显示 屏与所述显示单元电气连接, 所述按键与所述控制单元电气连接。
5.根据权利要求 1 所述的电磁流量传感器, 其特征在于, 所述电磁 组件水平设置在所述导管中部。
6.根据权利要求 1 所述的电磁流量传感器, 其特征在于, 所述电极 垂直设置在所述导管中部。
7.根据权利要求 6 所述的电磁流量传感器, 其特征在于, 所述导管 还设有用于固定所述电极的电极座, 所述电极设置在所述电极座内。
8.根据权利要求 1 所述的电磁流量传感器, 其特征在于, 所述导管 更正页 (细则第 9 1条) 为一体成型的管体。
9.根据权利要求 1 所述的电磁流量传感器, 其特征在于, 所述导管 两端还设有用于管路连接时密封连接的密封装置。
10.根据权利要求 3所述的电磁流量传感器, 其特征在于, 所述转换 模块还包括用于对数据进行无线传输的无线 HART单元, 所述无线 HART 单元与所述 MCU处理单元电气连接。
8
更正页 (细则第 9 1条)
PCT/CN2012/079800 2011-09-29 2012-08-08 电磁流量传感器 WO2013044690A1 (zh)

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