WO2020107467A1 - 一种电磁流量计 - Google Patents
一种电磁流量计 Download PDFInfo
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- WO2020107467A1 WO2020107467A1 PCT/CN2018/118731 CN2018118731W WO2020107467A1 WO 2020107467 A1 WO2020107467 A1 WO 2020107467A1 CN 2018118731 W CN2018118731 W CN 2018118731W WO 2020107467 A1 WO2020107467 A1 WO 2020107467A1
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- electromagnetic flowmeter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/56—Measuring 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
- G01F1/58—Measuring 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
- G01F1/588—Measuring 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
Definitions
- the invention relates to the technical field of electronic devices, in particular to an electromagnetic flowmeter.
- Electromagnetic flowmeters are not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity when measuring the flow of fluids. Therefore, electromagnetic flowmeters have obvious advantages in the field of agricultural drones with variable media. Moreover, the low straight pipe requirements of the electromagnetic flowmeter and the absence of moving parts make the installation space of the electromagnetic flowmeter smaller, therefore, the installation of the electromagnetic flowmeter on the agricultural drone also has obvious advantages.
- wires are often used to connect electrodes and signal amplification circuits.
- shielded wires are often needed to connect the electrodes and the signal amplification circuit. Specifically, it is sufficient to solder the shielded wire to the electrode and the signal amplification circuit separately.
- the shielded wire since the connection between the shielded wire, the electrode, and the signal amplification circuit is difficult to shield, the shielded wire is easily interfered by the excitation coil during signal transmission, resulting in the shielding wire in progress When the signal is transmitted, the defect of unstable signal is easy to occur, and further, the measurement result of the electromagnetic flowmeter is easily distorted.
- an embodiment of the present invention proposes an electromagnetic flowmeter.
- An embodiment of the present invention discloses an electromagnetic flowmeter, including:
- An excitation coil the excitation coil is wound outside the measuring tube and used to generate a magnetic field
- a first electrode and a second electrode, the first electrode and the second electrode are separately provided on both sides of the measuring tube, and are used to form an electromotive force signal proportional to the flow rate of the fluid to be measured;
- An amplifying circuit board the amplifying circuit board is in conduction with the first electrode and the second electrode, and between the amplifying circuit board and the first electrode, the amplifying circuit board and the first The two electrodes are rigidly connected.
- the amplification circuit board is in conduction with the first electrode and the second electrode, and between the amplification circuit board and the first electrode, the amplification circuit board and The second electrodes are rigidly connected. In this way, it is possible to avoid providing a shielding wire between the amplification circuit board and the first electrode and the second electrode for connection. Therefore, in the process of transmitting the electromotive force signal formed by the first electrode and the second electrode to the amplifying circuit board, the electromotive force signal is hardly interfered by the excitation coil and the signal is unstable The defect of the electromagnetic flowmeter avoids the distortion of the measurement result of the electromagnetic flowmeter, and further, the measurement accuracy of the electromagnetic flowmeter can be improved.
- FIG. 1 is a schematic diagram of a three-dimensional structure of an electromagnetic flowmeter of the present invention
- FIG. 2 is a schematic diagram of the cross-sectional structure of the electromagnetic flowmeter shown in FIG. 1;
- FIG. 3 is a schematic diagram of the tilting structure of the electromagnetic flowmeter shown in FIG. 1.
- An embodiment of the present invention provides an electromagnetic flowmeter, which may specifically include: a measuring tube, which can be used to flow a fluid to be measured; an excitation coil, which is wound around the measuring tube and used to generate Magnetic field; a first electrode and a second electrode, the first electrode and the second electrode are provided separately on both sides of the measuring tube, for forming an electromotive force signal proportional to the flow rate of the fluid to be measured; An amplifier circuit board, the amplifier circuit board is in conduction with the first electrode and the second electrode, and between the amplifier circuit board and the first electrode, the amplifier circuit board and the first The two electrodes are rigidly connected.
- the amplification circuit board is in conduction with the first electrode and the second electrode, and between the amplification circuit board and the first electrode, the amplification circuit board and The second electrodes are rigidly connected. In this way, it is possible to avoid providing a shielding wire between the amplification circuit board and the first electrode and the second electrode for connection. Therefore, in the process of transmitting the electromotive force signal formed by the first electrode and the second electrode to the amplifying circuit board, the electromotive force signal is hardly interfered by the excitation coil and the signal is unstable The defect of the electromagnetic flowmeter avoids the distortion of the measurement result of the electromagnetic flowmeter, and further, the measurement accuracy of the electromagnetic flowmeter can be improved.
- FIG. 1 shows a three-dimensional structure schematic diagram of an electromagnetic flowmeter of the present invention.
- FIG. 2 shows a schematic cross-sectional structure diagram of the electromagnetic flowmeter shown in FIG. 1.
- the measuring tube 10 can be used for flowing the fluid to be measured.
- the excitation coil 11 is wound around the measuring tube 10 and used to generate a magnetic field.
- the first electrode 12 and the second electrode 13, the first electrode 12 and the second electrode 13 are separately provided on both sides of the measuring tube 10, and are used to form an electromotive force signal proportional to the flow rate of the fluid to be measured.
- the amplifying circuit board 14 is connected between the amplifying circuit board 14 and the first electrode 12 and the second electrode 13, and the amplifying circuit board 14 is rigidly connected with the first electrode 12 and between the amplifying circuit board 14 and the second electrode 13 .
- the measuring tube 10 may be used to flow the fluid to be tested.
- the fluid to be tested may be a pesticide solution, a fertilizer solution, or other fluids. Be limited.
- the excitation coil 11 can be wound outside the measuring tube 10 to generate a magnetic field.
- the excitation coil 11 may be wound with an alternating magnetic field under the excitation of a power frequency power supply.
- the electromagnetic galvanometer may further include a first electrode 12 and a second electrode 13, the first electrode 12 and the second electrode 13 are separately disposed on both sides of the measuring tube 10, and are used to form a The electromotive force signal proportional to the flow of the fluid to be measured is described.
- an electromotive force signal proportional to the flow rate of the fluid to be measured may be formed between the first electrode 12 and the second electrode 13 on the line of action of the magnetic field generated by the excitation coil 11, the greater the flow rate of the fluid to be measured , The greater the value of the electromotive force signal. That is to say, the value of the electromotive force signal can reflect the flow rate of the fluid to be measured.
- the first electrode 12 may be located at the top of the measuring tube 10
- the second electrode 13 may be located at the bottom of the measuring tube 10
- the first electrode 12 may be located at the bottom of the measuring tube 10.
- the two electrodes 13 may be located at the top of the measuring tube 10, and the specific positions of the first electrode 12 and the second electrode 13 in the measuring tube 10 may not be limited in the embodiment of the present invention.
- the electromagnetic flowmeter may further include: an amplifying circuit board 14, the amplifying circuit board 14 communicates with the first electrode 12 and the second electrode 13, and between the amplifying circuit board 14 and the first electrode 12 Between the amplifier circuit board 14 and the second electrode 13 is rigidly connected.
- the amplifying circuit board can be used to process the electromotive force signal formed by the first electrode 12 and the second electrode 13 and transmit the amplified electromotive force signal to the processor, so that the processor can The amplified electromotive force signal calculates the flow rate of the liquid to be measured.
- the amplifying circuit board 14 is provided with an amplifying circuit; wherein the amplifying circuit is connected to the first electrode 12 and the second electrode 13 respectively, and is used to connect the electromotive force signal formed by the first electrode 12 and the second electrode 13 To zoom in.
- the amplifier circuit may include a filter, and the filter may be used to filter out clutter in the electromotive force signal, and thereby, the signal quality of the electromotive force signal may be improved.
- the amplifying circuit board 14 and the first electrode 12 are rigidly connected with each other, the amplifying circuit board 14 and the second electrode 13 are rigidly connected.
- the electromotive force signal is difficult to be interfered by the excitation coil 11 and the signal is unstable, which avoids the measurement result of the electromagnetic flowmeter from being distorted, which can further improve The measurement accuracy of the electromagnetic flowmeter.
- the amplifying circuit board 14 may include a first sub-circuit board 141 and a second sub-circuit board 142, wherein the first sub-circuit board 141 is rigidly connected to the first electrode 12; the second sub-circuit board 142 and the second electrode 13 Rigid connection.
- the amplifying circuit board 14 may further include: a flexible circuit board 143; wherein, the flexible circuit board 143 is respectively connected to the first sub-circuit board 141 and the second sub-circuit board 142.
- the flexible circuit board 143 is respectively connected to the first sub-circuit board 141 and the second sub-circuit board 142.
- the first electrode 12 and the second electrode 13 are disposed on both sides of the measuring tube 10 separately, the first sub-circuit board 141 and the first electrode 12 are rigidly connected; the second sub-circuit board 142 and the second electrode 13 Because of the rigid connection, in the assembled state of the electromagnetic meter, the first sub-circuit board 142 and the second sub-circuit board 143 are located on both sides of the measuring tube 10 respectively.
- the installation space occupied by the amplifying circuit board 14 can be greatly reduced, and in turn, can be reduced The volume of the electromagnetic flowmeter.
- FIGS. 1 to 3 in order to clearly illustrate the structure of the amplifier circuit board 14, only the first sub-circuit board 141 and the first electrode 12 are rigidly connected, and the second sub-circuit board 142 is unfolded. However, in actual application, in the assembled state of the electromagnetic meter, the second sub-circuit board 142 and the second electrode 13 need to be rigidly connected. For the specific connection relationship, refer to the first word circuit board 141 and the first electrode 12 The connection relationship is sufficient, and will not be repeated here.
- the amplifying circuit board 14 and the first electrode 12 and the amplifying circuit board 14 and the second electrode 13 may be connected by a conductive fastener 15.
- the conductive fastener 15 may include, but is not limited to, any one of a conductive bolt, a conductive screw, or a conductive stud, and the specific type of the conductive fastener 15 may not be limited in this embodiment of the present invention.
- the winding direction of the conductive fastener 15 and the exciting coil 11 may be set at a preset angle.
- the preset angle may be an angle close to 90 degrees.
- it may be further The interference of the magnetic field generated by the exciting coil 11 on the conductive fastener 15 is reduced, and further, the measurement accuracy of the electromagnetic flowmeter can be further improved.
- first sub-circuit board 141 and the second sub-circuit board 142 are respectively provided with first through holes 144; the first electrode 12 and the second electrode 13 are respectively provided with second screw holes 16.
- the conductive fastener 15 may pass through the first through hole 144 on the first sub-circuit board 141 and the second threaded hole 16 on the first electrode 12 in order to realize the conduction between the first sub-circuit board 141 and the first electrode 12 Through as well as rigid connections.
- the conductive fastener 15 may pass through the first through hole 144 on the second sub-circuit board 142 and the second threaded hole 16 on the second electrode 13 in order to realize the conduction between the second sub-circuit board 142 and the second electrode 13 Through as well as rigid connections.
- the amplifying circuit board 14 and the first electrode 12 and the amplifying circuit board 14 and the second electrode 13 are connected by conductive fasteners 15, the amplifying circuit board 14 and the first
- the disassembly and installation between the electrode 12 and the second electrode 13 improves the maintainability of the electromagnetic flowmeter.
- the amplifying circuit board 14 and the first electrode 12 and the amplifying circuit board 14 and the second electrode 13 may be connected by soldering.
- soldering when the large circuit board 14 and the first electrode 12 and the amplifier circuit board 14 and the second electrode 13 are connected by soldering, the amplifier circuit board 14 and the first electrode 12 can be made
- the connection relationship between the amplifier circuit board 14 and the second electrode 13 is relatively simple, so that the structural cost of the electromagnetic flowmeter can be reduced.
- the electromagnetic flowmeter may further include: a sealing gasket 17; wherein, the sealing gasket 17 is disposed between the first electrode 12 and one end of the measuring tube 10, and is used to realize the first electrode 12 and the measuring tube 10
- a sealing gasket 17 may also be provided between the second electrode 13 and the other end of the measuring tube 10 for achieving a sealed connection between the second electrode 13 and the measuring tube 10.
- the sealing gasket 17 may be a gasket such as a flat gasket, an elastic gasket, or a rubber gasket.
- the specific type of the sealing gasket 17 is not limited in the embodiment of the present invention.
- the amplifier circuit board 14 may further include: a power connection module 145, and the power connection module 145 may be used to connect the amplifier circuit board 14 to the power supply.
- the power connection module 145 may be a power interface or a power socket Wait for installation.
- the power connection module 145 may be disposed on the first sub-circuit board 141 or the second sub-circuit board 142, and the specific position of the power connection module 145 may not be limited in the embodiment of the present invention.
- the electromagnetic flowmeter may further include a housing 18; wherein, the measuring tube 10, the excitation coil 11, and the amplifier circuit board 14 may be fixed on the housing 18, respectively.
- the housing 18 can be used to fix and support the measuring tube 10, the exciting coil 11 and the amplifying circuit board 14.
- the housing 18 is further provided with an inflow tube 181 and an outflow tube 182; wherein, the inflow tube 181 and the outflow tube 182 are respectively communicated with the measuring tube 10, and the inflow tube 181 may be used to transfer the flow to be measured
- the figure is introduced into the measuring tube 10, and the outflow tube 182 can be used to lead the fluid to be measured out of the measuring tube 10.
- the electromagnetic flow meter described in the embodiments of the present invention includes at least the following advantages:
- the amplification circuit board is in conduction with the first electrode and the second electrode, and between the amplification circuit board and the first electrode, the amplification circuit board and The second electrodes are rigidly connected. In this way, it is possible to avoid providing a shielding wire between the amplification circuit board and the first electrode and the second electrode for connection. Therefore, in the process of transmitting the electromotive force signal formed by the first electrode and the second electrode to the amplifying circuit board, the electromotive force signal is hardly interfered by the excitation coil and the signal is unstable The defect of the electromagnetic flowmeter avoids the distortion of the measurement result of the electromagnetic flowmeter, and further, the measurement accuracy of the electromagnetic flowmeter can be improved.
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Abstract
一种电磁流量计，具体包括：测定管(10)，测定管(10)用于供待测流体流动；励磁线圈(11)，励磁线圈(11)缠绕在测定管(10)外，用于产生磁场；第一电极(12)和第二电极(13)，第一电极(12)和第二电极(13)分开地设置于测定管(10)的两侧，用于形成与待测流体的流量成正比的电动势信号；放大电路板(14)，放大电路板(14)与第一电极(12)、第二电极(13)之间导通，且放大电路板(14)与第一电极(12)之间、放大电路板(14)与第二电极(13)之间刚性连接。该电磁流量计可以避免测量结果失真的情况，实现较高的测量精度。
Description
本发明涉及电子器件技术领域，特别是涉及一种电磁流量计。
电磁流量计在测量流体的流量时，不受流体密度、粘度、温度、压力和电导率变化的影响，因此，电磁流量计应用在介质多变的农业无人机领域有明显的优势。而且，电磁流量计的低直管段要求和没有运动部件，使得电磁流量计的安装空间较小，因此，电磁流量计的在农业无人机上的安装也具有明显的优势。
现有的电磁流量计中，电极和信号放大电路之间往往采用导线进行连接。在实际应用中，为了减少励磁线圈对上述导线的信号传输造成干扰，电极和信号放大电路之间往往需要采用屏蔽线进行连接。具体地，将屏蔽线分别焊接在电极和信号放大电路上即可。
然而，现有的电磁流量计中，由于屏蔽线与电极、信号放大电路的连接处很难进行屏蔽，因此，屏蔽线在进行信号传输时，很容易受到励磁线圈的干扰，导致屏蔽线在进行信号传输时很容易出现信号不稳定的缺陷，进而，很容易导致电磁流量计的测量结果失真。
发明内容
有鉴于此，为了解决现有的电磁流量计很容易出现测量结果失真的问题，本发明实施例提出了一种电磁流量计。
本发明实施例公开了一种电磁流量计，包括：
测定管，所述测定管用于供待测流体流动；
励磁线圈，所述励磁线圈缠绕在所述测定管外，用于产生磁场；
第一电极和第二电极，所述第一电极和所述第二电极分开地设置于所述测定管的两侧，用于形成与所述待测流体的流量成正比的电动势信号；
放大电路板，所述放大电路板与所述第一电极、所述第二电极之间导通， 且所述放大电路板与所述第一电极之间、所述放大电路板与所述第二电极之间刚性连接。
本发明实施例包括以下优点：
本发明实施例中，由于所述放大电路板与所述第一电极、所述第二电极之间导通，且所述放大电路板与所述第一电极之间、所述放大电路板与所述第二电极之间刚性连接，这样，就可以避免在所述放大电路板与所述第一电极、所述第二电极之间设置屏蔽线来进行连接。因此，在将所述第一电极、所述第二电极形成的所述电动势信号传输至所述放大电路板的过程中，所述电动势信号很难受到所述励磁线圈的干扰而出现信号不稳定的缺陷，避免了所述电磁流量计出现测量结果失真的情况，进而，可以提高所述电磁流量计的测量精度。
图1是本发明的一种电磁流量计的立体结构示意图；
图2是图1所示的电磁流量计的剖面结构示意图；
图3是图1所示的电磁流量计的俯向结构示意图。
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
本发明实施例提供了一种电磁流量计，具体可以包括：测定管，所述测定管可以用于供待测流体流动；励磁线圈，所述励磁线圈缠绕在所述测定管外，用于产生磁场；第一电极和第二电极，所述第一电极和所述第二电极分开地设置于所述测定管的两侧，用于形成与所述待测流体的流量成正比的电动势信号；放大电路板，所述放大电路板与所述第一电极、所述第二电极之间导通，且所述放大电路板与所述第一电极之间、所述放大电路板与所述第二电极之间刚性连接。
本发明实施例中，由于所述放大电路板与所述第一电极、所述第二电极 之间导通，且所述放大电路板与所述第一电极之间、所述放大电路板与所述第二电极之间刚性连接，这样，就可以避免在所述放大电路板与所述第一电极、所述第二电极之间设置屏蔽线来进行连接。因此，在将所述第一电极、所述第二电极形成的所述电动势信号传输至所述放大电路板的过程中，所述电动势信号很难受到所述励磁线圈的干扰而出现信号不稳定的缺陷，避免了所述电磁流量计出现测量结果失真的情况，进而，可以提高所述电磁流量计的测量精度。
参照图1，示出了本发明的一种电磁流量计的立体结构示意图，参照图2，示出了图1所示的电磁流量计的剖面结构示意图，参照图3，示出了图1所示的电磁流量计的俯向结构示意图。具体可以包括：
测定管10，测定管10可以用于供待测流体流动。
励磁线圈11，励磁线圈11缠绕在测定管10外，用于产生磁场。
第一电极12和第二电极13，第一电极12和第二电极13分开地设置于测定管10的两侧，用于形成与所述待测流体的流量成正比的电动势信号。
放大电路板14，放大电路板14与第一电极12、第二电极13之间导通，且放大电路板14与第一电极12之间、放大电路板14与第二电极13之间刚性连接。
本发明实施例中，测定管10可以用于供待测流体流动，具体的，所述待测流体可以为农药溶液、肥料溶液等流体，本发明实施例对于所述待测流体的具体类型不做限定。
在实际应用中，励磁线圈11可以缠绕在测定管10外，用于产生磁场。具体地，为了避免测定管10内的电极出现极化现象，提高所述电磁流量计的使用寿命，励磁线圈11可以在工频电源的激励下缠上交变磁场。
本发明实施例中，所述电磁测流计还可以包括第一电极12和第二电极13，第一电极12和第二电极13分开地设置于测定管10的两侧，用于形成与所述待测流体的流量成正比的电动势信号。具体地，在励磁线圈11产生的磁场的作用线，第一电极12、第二电极13之间可以形成与所述待测流体 的流量成正比的电动势信号，所述待测流体的流量越大，所述电动势信号的值就越大。也就是说，所述电动势信号的值可以反映所述待测流体的流量大小。
可以理解的是，在实际应用中，第一电极12可以位于测定管10的顶端，第二电极13可以位于测定管10的底端，或者第一电极12可以位于测定管10的底端，第二电极13可以位于测定管10的顶端，本发明实施例对于第一电极12、第二电极13在测定管10内的具体位置可以不做限定。
本发明实施例中，所述电磁流量计还可以包括：放大电路板14，放大电路板14与第一电极12、第二电极13之间导通，且放大电路板14与第一电极12之间、放大电路板14与第二电极13之间刚性连接。在实际应用中，放大电路板可以用于将第一电极12、第二电极13形成的所述电动势信号进行方法，并将放大后的电动势信号传输给处理器，以便所述处理器根据所述放大后的电动势信号计算出所述待测液体的流量。
具体地，放大电路板14中设有放大电路；其中，所述放大电路分别与第一电极12、第二电极13连接，用于将第一电极12、第二电极13形成的所述电动势信号进行放大。
可选地，所述放大电路中可以包含滤波器，所述滤波器可以用于滤除所述电动势信号中的杂波，进而，可以提高所述电动势信号的信号质量。
本发明实施例中，由于放大电路板14与第一电极12之间、放大电路板14与第二电极13之间刚性连接，因此，在将第一电极12、第二电极13形成的所述电动势信号传输至放大电路板14的过程中，所述电动势信号很难受到励磁线圈11的干扰而出现信号不稳定的缺陷，避免了所述电磁流量计出现测量结果失真的情况，进而，可以提高所述电磁流量计的测量精度。
具体地，放大电路板14可以包括第一子电路板141和第二子电路板142，其中，第一子电路板141与第一电极12刚性连接；第二子电路板142与第二电极13刚性连接。
在实际应用中，放大电路板14还可以包括：柔性电路板143；其中，柔性电路板143分别与第一子电路板141、第二子电路板142连接。具体地， 由于第一电极12、第二电极13分开的设置于测定管10的两侧，而第一子电路板141与第一电极12刚性连接；第二子电路板142与第二电极13刚性连接，因此，在所述电磁计量器的装配状态下，第一子电路板142、第二子电路板143分别位于测定管10的两侧。本发明实施例中，由于第一子电路板141、第二子电路板142之间可以通过柔性电路板143连接，可以极大的减小放大电路板14占用的安装空间，进而，可以减小所述电磁流量计的体积。
可以理解的是，图1至图3中，为了清晰示意出放大电路板14的结构，仅示出了第一子电路板141与第一电极12刚性连接、第二子电路板142展开的状态，而在实际应用中，在所述电磁计量器的装配状态下，第二子电路板142与第二电极13需要刚性连接，其具体的连接关系参照第一字电路板141与第一电极12的连接关系即可，在此不做赘述。
在本发明的一种可选实施例中，放大电路板14和第一电极12之间、放大电路板14和第二电极13之间可以通过导电紧固件15进行连接。具体地，导电紧固件15可以包括但不局限于导电螺栓、导电螺钉或者导电螺柱中的任意一种，本发明实施例对于导电紧固件15的具体类型可以不做限定。
在实际应用中，导电紧固件15与励磁线圈11的缠绕方向可以成预设夹角设置。具体地，所述预设夹角可以为接近90度的夹角，在实际应用中，在导电紧固件15与励磁线圈11的缠绕方向成接近90度的夹角设置的情况下，可以进一步降低励磁线圈11产生的磁场对导电紧固件15的干扰，进而，可以进一步提高所述电磁流量计的测量精度。
具体地，第一子电路板141、第二子电路板142上分别设有第一通孔144；第一电极12、第二电极13上分别设有第二螺纹孔16。
导电紧固件15可以依次通过第一子电路板141上的第一通孔144和第一电极12上的第二螺纹孔16，实现第一子电路板141与第一电极12之间的导通以及刚性连接。
导电紧固件15可以依次通过第二子电路板142上的第一通孔144和第二电极13上的第二螺纹孔16，实现第二子电路板142与第二电极13之间的导通以及刚性连接。
在实际应用中，在放大电路板14和第一电极12之间、放大电路板14和第二电极13之间通过导电紧固件15进行连接的情况下，可以方便放大电路板14与第一电极12、第二电极13之间的拆卸安装，提高所述电磁流量计的可维护性。
在本发明的另一种可选实施例中，放大电路板14和第一电极12之间、放大电路板14与第二电极13之间可以焊接连接。在实际应用中，在当大电路板14和第一电极12之间、放大电路板14与第二电极13之间焊接连接的情况下，可以使得放大电路板14与第一电极12之间、放大电路板14与第二电极13之间的连接关系较为简单，这样，就可以降低所述电磁流量计的结构成本。
在实际应用中，所述电磁流量计还可以包括：密封垫圈17；其中，密封垫圈17设置在第一电极12与测定管10的一端之间，用于实现第一电极12与测定管10之间的密封连接；密封垫圈17还可以设置在第二电极13与测定管10的另一端之间，用于实现第二电极13与测定管10之间的密封连接。
具体地，密封垫圈17可以为平垫、弹垫或者橡胶垫等垫圈，本发明实施例对于密封垫圈17的具体类型不做限定。
本发明实施例中，放大电路板14还可以包括：电源连接模块145，电源连接模块145可以用于实现放大电路板14与电源的连接，具体地，电源连接模块145可以为电源接口、电源插座等装置。在实际应用中，电源连接模块145可以设置于第一子电路板141或者第二子电路板142上，本发明实施例对于电源连接模块145的具体位置可以不做限定。
在实际应用中，所述电磁流量计还可以包括外壳18；其中，测定管10、励磁线圈11、以及放大电路板14分别可以固定在外壳18上。外壳18可以用于固定支撑测定管10、励磁线圈11以及放大电路板14。
具体地，外壳18上还设置有进流管181和出流管182；其中，进流管181和出流管182分别与测定管10相通，进流管181可以用于将所述待测流图导入测定管10，出流管182则可以用于将所述待测流体从测定管10内导出。
综上，本发明实施例所述的电磁测流计至少包括以下优点：
本发明实施例中，由于所述放大电路板与所述第一电极、所述第二电极之间导通，且所述放大电路板与所述第一电极之间、所述放大电路板与所述第二电极之间刚性连接，这样，就可以避免在所述放大电路板与所述第一电极、所述第二电极之间设置屏蔽线来进行连接。因此，在将所述第一电极、所述第二电极形成的所述电动势信号传输至所述放大电路板的过程中，所述电动势信号很难受到所述励磁线圈的干扰而出现信号不稳定的缺陷，避免了所述电磁流量计出现测量结果失真的情况，进而，可以提高所述电磁流量计的测量精度。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。
尽管已描述了本发明实施例的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明实施例范围的所有变更和修改。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。
以上对本发明所提供的一种电磁测流计，进行了详细介绍，本文中应用 了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。
Claims (13)
- 一种电磁流量计，其特征在于，包括：测定管，所述测定管用于供待测流体流动；励磁线圈，所述励磁线圈缠绕在所述测定管外，用于产生磁场；第一电极和第二电极，所述第一电极和所述第二电极分开地设置于所述测定管的两侧，用于形成与所述待测流体的流量成正比的电动势信号；放大电路板，所述放大电路板与所述第一电极、所述第二电极之间导通，且所述放大电路板与所述第一电极之间、所述放大电路板与所述第二电极之间刚性连接。
- 根据权利要求1所述的电磁流量计，其特征在于，所述放大电路板和所述第一电极之间、所述放大电路板和所述第二电极之间通过导电紧固件进行连接。
- 根据权利要求2所述的电磁流量计，其特征在于，所述导电紧固件与所述励磁线圈的缠绕方向成预设夹角设置。
- 根据权利要求2所述的电磁流量计，其特征在于，所述放大电路板包括第一子电路板和第二子电路板，其中所述第一子电路板与所述第一电极刚性连接；所述第二子电路板与所述第二电极刚性连接。
- 根据权利要求4所述的电磁流量计，其特征在于，所述第一子电路板、所述第二子电路板上分别设有第一通孔；所述第一电极、所述第二电极上分别设有第二螺纹孔；所述导电紧固件依次通过所述第一子电路板上的第一通孔和所述第一电极上的第二螺纹孔，实现所述第一子电路板与所述第一电极之间的导通以及刚性连接；所述导电紧固件依次通过所述第二子电路板上的第一通孔和所述第二电极上的第二螺纹孔，实现所述第二子电路板与所述第二电极之间的导通以及刚性连接。
- 根据权利要求4所述的电磁流量计，其特征在于，所述放大电路板还包括：柔性电路板；其中所述柔性电路板分别与所述第一子电路板、第二子电路板连接。
- 根据权利要求4所述的电磁流量计，其特征在于，所述放大电路板还包括：电源连接模块；其中所述电源连接模块设置于所述第一子电路板或者所述第二子电路板上。
- 根据权利要求1所述的电磁流量计，其特征在于，所述放大电路板和所述第一电极之间、所述放大电路板与所述第二电极之间焊接连接。
- 根据权利要求1所述的电磁流量计，其特征在于，还包括：密封垫圈；其中所述密封垫圈设置在所述第一电极与所述测定管的一端之间，用于实现所述第一电极与所述测定管之间的密封连接；所述密封垫圈还设置在所述第二电极与所述测定管的另一端之间，用于实现所述第二电极与所述测定管之间的密封连接。
- 根据权利要求1所述的电磁流量计，其特征在于，所述放大电路板中设有放大电路；其中所述放大电路分别与所述第一电极、所述第二电极连接，用于将所述第一电极、所述第二电极形成的所述电动势信号进行放大。
- 根据权利要求10所述的电磁流量计，其特征在于，所述放大电路板中包含有滤波器。
- 根据权利要求1所述的电磁流量计，其特征在于，还包括：外壳；其中所述测定管、所述励磁线圈、以及所述放大电路板分别固定在所述外壳上。
- 根据权利要求12所述的电磁流量计，其特征在于，所述外壳上还设置有进流管和出流管；其中所述进流管和所述出流管分别与所述测定管相通。
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235062A (zh) * | 2021-11-24 | 2022-03-25 | 无锡欧百仪表科技有限公司 | 一种防震耐用的电磁流量计 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040149046A1 (en) * | 2003-01-30 | 2004-08-05 | Yoshio Yamazaki | Measurement pipe for electromagnetic flowmeter |
| CN201752412U (zh) * | 2010-08-06 | 2011-03-02 | 北京太阳电子科技有限公司 | 无干扰电生理检测用电极 |
| DE102010061720A1 (de) * | 2010-11-22 | 2012-05-24 | Endress + Hauser Flowtec Ag | Magnetisch-indukties Durchflussmessgerät |
| CN202903253U (zh) * | 2012-11-13 | 2013-04-24 | 上海凡宜科技电子有限公司 | 一种新型电磁流量计 |
| CN202974352U (zh) * | 2012-12-12 | 2013-06-05 | 承德市本特思达仪表有限公司 | 一种插入式电磁流量计 |
| CN205300665U (zh) * | 2016-01-04 | 2016-06-08 | 德阳市新泰自动化仪表有限公司 | 一种抗干扰的电磁流量计 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5887683B2 (ja) * | 2013-04-08 | 2016-03-16 | Smc株式会社 | 電磁流量計 |
| JP6851785B2 (ja) * | 2016-11-09 | 2021-03-31 | アズビル株式会社 | 電磁流量計 |
| CN209296062U (zh) * | 2018-11-30 | 2019-08-23 | 深圳市大疆创新科技有限公司 | 一种电磁流量计 |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040149046A1 (en) * | 2003-01-30 | 2004-08-05 | Yoshio Yamazaki | Measurement pipe for electromagnetic flowmeter |
| CN201752412U (zh) * | 2010-08-06 | 2011-03-02 | 北京太阳电子科技有限公司 | 无干扰电生理检测用电极 |
| DE102010061720A1 (de) * | 2010-11-22 | 2012-05-24 | Endress + Hauser Flowtec Ag | Magnetisch-indukties Durchflussmessgerät |
| CN202903253U (zh) * | 2012-11-13 | 2013-04-24 | 上海凡宜科技电子有限公司 | 一种新型电磁流量计 |
| CN202974352U (zh) * | 2012-12-12 | 2013-06-05 | 承德市本特思达仪表有限公司 | 一种插入式电磁流量计 |
| CN205300665U (zh) * | 2016-01-04 | 2016-06-08 | 德阳市新泰自动化仪表有限公司 | 一种抗干扰的电磁流量计 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235062A (zh) * | 2021-11-24 | 2022-03-25 | 无锡欧百仪表科技有限公司 | 一种防震耐用的电磁流量计 |
| CN114235062B (zh) * | 2021-11-24 | 2023-07-28 | 无锡欧百仪表科技有限公司 | 一种防震耐用的电磁流量计 |
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