CN212228181U

CN212228181U - Device for solving problem of sticking of floating ball of magnetostrictive displacement sensor

Info

Publication number: CN212228181U
Application number: CN202020505224.9U
Authority: CN
Inventors: 陈光明
Original assignee: Jiangxi Jinyuan Automation Technology Co ltd
Current assignee: Jiangxi Jinyuan Automation Technology Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-12-25
Anticipated expiration: 2030-04-09

Abstract

The utility model relates to a hydrology observation field especially relates to a solve device of magnetostrictive displacement sensor floater viscous problem, contains container and magnetostrictive sensor, the container bottom links to each other with the liquid that awaits measuring through the connecting pipe, magnetostrictive sensor fixes in the container, magnetostrictive sensor contains the casing with container reciprocal anchorage, the inside circuit board that is fixed with of casing, the circuit board below is fixed with the wave guide that stretches out the casing bottom, the wave guide internal fixation has the waveguide silk, casing internal fixation still has the magnetic ring with the discontiguous of wave guide all around, still be fixed with the float with wave guide sliding connection on the wave guide of casing below, float internal fixation has the permanent magnet, still be fixed with vibrating device on the casing. The device can accurately measure the change condition of the liquid level height.

Description

Device for solving problem of sticking of floating ball of magnetostrictive displacement sensor

[ technical field ] A method for producing a semiconductor device

The utility model relates to a hydrology field of surveing especially relates to a solve device of magnetostrictive displacement sensor floater viscous problem.

[ background of the invention ]

When the magnetostrictive displacement sensor works, an electronic transmitter circuit part of the sensor excites pulse current on the waveguide wire, and the pulse current magnetic field is generated around the waveguide wire when the current propagates along the waveguide wire. A float is arranged outside the measuring rod of the magnetostrictive displacement sensor and can move up and down along the measuring rod along with the change of the liquid level. A group of permanent magnetic rings is arranged in the floater. When the pulse current magnetic field meets the magnetic ring magnetic field generated by the floater, the magnetic field around the floater changes, so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse at the position of the floater, and the pulse is transmitted back along the waveguide wire at a fixed speed and is detected by an electronic transmitter detection mechanism. The position of the float, i.e. the position of the liquid level, can be accurately determined by measuring the time difference between the pulse current and the torsional wave.

However, in the use process, the floating ball of the magnetostrictive sensor and liquid have viscous force, and the viscous force causes the floating ball to have hysteresis quality and step quality in the process of changing along with the liquid level. This hysteresis and step is particularly evident in some relatively precise measurements of small changes in displacement. This problem exists, for example, in surface evaporation measurements in the hydrology industry.

The utility model discloses it is not enough to solve prior art and research and propose.

[ Utility model ] content

The utility model aims at overcoming the shortcoming of above-mentioned prior art, providing a solve the device of magnetostrictive displacement sensor floater viscous problem.

The utility model discloses can realize through following technical scheme:

the utility model discloses a solve device of magnetostrictive displacement sensor floater viscous problem contains container and magnetostrictive sensor, the container bottom links to each other with the liquid that awaits measuring through the connecting pipe, magnetostrictive sensor fixes in the container, magnetostrictive sensor contains the casing with container reciprocal anchorage, the inside circuit board that is fixed with of casing, the circuit board below is fixed with the wave guide that stretches out the casing bottom, the wave guide internal fixation has the waveguide silk, the inside wave guide week of casing week side still is fixed with the magnetic ring with the discontiguous of wave guide, still be fixed with the float with wave guide sliding connection on the wave guide of casing below, float internal fixation has the permanent magnet, still be fixed with vibrating device on the casing. The liquid to be measured is connected with the container through the connecting pipe, namely the liquid level of the liquid to be measured is ensured to be consistent with the liquid level in the container, the floater floats on the liquid level, during measurement, a current pulse is generated through the circuit board and is transmitted on the waveguide wire, a circumferential magnetic field is generated through the magnetic ring which is not contacted with the outside of the waveguide wire, when the circumferential magnetic field is intersected with the magnetic field generated by the permanent magnet in the floater, a strain mechanical pulse signal is generated on the waveguide wire in the waveguide tube and is transmitted at a fixed speed and is detected by a receiving element on the circuit board in the shell, because the transmission time of the strain mechanical pulse signal in the waveguide tube is in direct proportion to the distance between the permanent magnet and the circuit board, the distance can be determined highly accurately through measuring the time, when the floater displaces on the waveguide tube, the position of the floater on the waveguide tube can be determined through the transmission time of the strain mechanical pulse signal in the waveguide tube, the liquid level change height of the liquid to be measured is confirmed, the vibrating device drives the magnetostrictive sensor to vibrate, the magnetostrictive sensor drives the liquid level of the liquid to be measured to vibrate after vibrating, and the tension of the liquid surface disappears after the liquid level of the liquid to be measured vibrates, so that the viscous force between the liquid surface and the floater disappears, and the liquid level change height can be accurately measured through the device.

Preferably, the vibration device is a vibration motor.

Compared with the prior art, the utility model has the advantages that:

the vibrating device drives the magnetostrictive sensor to vibrate, the magnetostrictive sensor drives the liquid level of the liquid to be measured to vibrate after vibrating, and the tension of the liquid surface disappears after the liquid level of the liquid to be measured vibrates, so that the viscous force between the liquid surface and the floater disappears, and the change condition of the liquid level height can be accurately measured through the device.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of the present invention;

in the figure: 1. a container; 2. a connecting pipe; 3. a magnetostrictive sensor; 4. a waveguide; 5. a float; 6. a permanent magnet; 7. a vibration motor; 8. a housing;

[ detailed description ] embodiments

The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings:

as shown in fig. 1, the utility model discloses a solve device of magnetostrictive displacement sensor floater viscous problem, contain container 1 and magnetostrictive sensor 3, container 1 bottom links to each other with the liquid that awaits measuring through connecting pipe 2, magnetostrictive sensor 3 fixes in container 1, magnetostrictive sensor 3 contains the casing 8 with container 1 reciprocal anchorage, 8 internal fixation of casing has the circuit board, the circuit board below is fixed with the wave guide 4 who stretches out casing 8 bottom, wave guide 4 internal fixation has the waveguide silk, 4 week sides of the inside waveguide of casing 8 still are fixed with the not contact magnetic ring with wave guide 4, still be fixed with on the wave guide 4 of casing 8 below with wave guide 4 sliding connection's float 5, 5 internal fixation of float has permanent magnet 6, still be fixed with vibrating device on the casing 8. The liquid to be measured is connected with the container 1 through the connecting pipe 2, namely, the liquid level of the liquid to be measured is ensured to be consistent with the liquid level inside the container 1, the floater 5 floats on the liquid level, when the liquid level is measured, a current pulse is generated through the circuit board, the current pulse is transmitted on the waveguide wire, a circumferential magnetic field is generated through the non-contact magnetic ring outside the waveguide wire, when the circumferential magnetic field is intersected with the magnetic field generated by the permanent magnet 6 inside the floater 5, a strain mechanical pulse signal is generated on the waveguide wire inside the waveguide tube 4, the strain mechanical pulse signal is transmitted at a fixed speed and is detected by a receiving element on a circuit board inside the shell 8, as the transmission time of the strain mechanical pulse signal in the waveguide tube 4 is in direct proportion to the distance between the permanent magnet 6 and the circuit board, the distance can be determined highly accurately through measuring the time, when the floater 5 displaces on the waveguide tube 4, the position of the floater 5 on the waveguide tube 4 can be confirmed through the transmission time of the strain mechanical wave pulse signal in the waveguide tube 4, so that the liquid level change height of the liquid to be measured is confirmed, the vibration device drives the magnetostrictive sensor 3 to vibrate, the magnetostrictive sensor 3 vibrates to drive the liquid level of the liquid to be measured to vibrate, and the tension of the liquid surface disappears after the liquid surface of the liquid to be measured vibrates, so that the viscous force between the liquid surface and the floater 5 disappears, and the change condition of the liquid level can be accurately measured through the device.

Wherein the vibration device is a vibration motor 7.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many changes, modifications, substitutions and variations can be made to the embodiments without departing from the technical principles of the present invention, and these changes, modifications, substitutions and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a solve device of magnetostrictive displacement sensor floater viscosity problem, contains container and magnetostrictive sensor, its characterized in that: the utility model discloses a liquid detection device, including container, magnetostrictive sensor, casing, circuit board, wave guide pipe, floater, vibration device, connecting pipe, magnetostrictive sensor, casing internal fixation, circuit board, wave guide pipe, waveguide wire, waveguide pipe week side, the floater that still is fixed with waveguide pipe sliding connection below the casing, the floater internal fixation has the permanent magnet, still be fixed with vibrating device on the casing.

2. The device for solving the problem of the viscosity of the floating ball of the magnetostrictive displacement sensor as claimed in claim 1, which is characterized in that: the vibration device is a vibration motor.