CN217877527U - Displacement sensor - Google Patents

Abstract

The utility model provides a displacement sensor relates to displacement measurement technical field. Including displacement sensor coil and displacement sensor connecting rod, the through-hole that is used for holding the displacement sensor connecting rod is offered along the axial of displacement sensor coil to the displacement sensor coil cover when the displacement sensor connecting rod surface, the two produces relative motion through electromagnetic fit, and the surface of displacement sensor connecting rod is provided with the scale for show the displacement volume. Through setting up the scale on displacement sensor surface, can read out displacement variation volume directly perceivedly, when displacement sensor's signal was because of various reasons transmission interrupt, still do not influence displacement sensor's reading. In addition, the fault reason can be judged by comparing the displacement value displayed by the scale mark and the displacement value after the signal transmission of the sensor, so that the maintenance of the displacement sensor is facilitated.

Description

Displacement sensor

Technical Field

The utility model relates to a displacement measurement technical field particularly, relates to a displacement sensor.

Background

In industrial production, displacement sensors are widely used for measuring data parameters such as elongation, thickness, expansion and the like. By utilizing the electromagnetic induction principle, the iron core connecting rod moves in the coil, the generated induced electromotive force is converted along with the movement of the iron core connecting rod, and finally the induced electromotive force is converted into a voltage signal for measuring the moving distance of the iron core connecting rod in the coil, so that corresponding parameters can be accurately measured.

The conventional displacement sensor can transmit a voltage signal to a corresponding meter and an electronic device for displaying a measured value during normal operation. However, when the associated meter and electronic device fail, the measured value cannot be displayed by these devices. If the internal coil of the displacement sensor is damaged, the parameter measurement can not be normally carried out. In addition, in the case of emergencies such as loose wiring, signal cable damage and the like, the measured displacement cannot be displayed through intuitive or indirect measurement.

In view of this, the utility model is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a displacement sensor, it can mark audio-visual learning displacement volume through the scale.

The embodiment of the utility model is realized like this:

in a first aspect, the utility model provides a displacement sensor, including displacement sensor coil and displacement sensor connecting rod, the through-hole that is used for holding displacement sensor connecting rod is offered to the displacement sensor coil along the axial of displacement sensor coil to make displacement sensor coil cover when displacement sensor connecting rod surface, the two produces relative motion through electromagnetic fit, the surface of displacement sensor connecting rod is provided with the scale, is used for showing the displacement volume.

Through setting up the scale on displacement sensor surface, can read out displacement variation volume directly perceivedly, when displacement sensor's signal was because of various reasons transmission interrupt, still do not influence displacement sensor's reading. In addition, the fault reason can be judged by comparing the displacement value displayed by the scale mark and the displacement value after the signal transmission of the sensor, so that the maintenance of the displacement sensor is facilitated.

The utility model provides an among the embodiment, the structure of displacement sensor coil and displacement sensor connecting rod as long as the structure through electromagnetic induction instruction displacement volume can, specifically constitute the utility model discloses do not restrict.

In an alternative embodiment, the scale marks are either numerical marks or letter marks for the convenience of reading and writing.

In other embodiments, the scale mark may be a symbol mark, for example, when the displacement is low, the scale mark is a rectangle; when the displacement is high, the scales are marked as a plurality of rectangles, and so on.

In an alternative embodiment, where the scale is marked with a numeric indication, the scale indication is 0-100%. For example, the scale is indicated as 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100%. The displacement amounts are 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and 100%, respectively.

In an alternative embodiment, where the scale markings are letter markings, the scale markings are a-E. For example, the scale is labeled A, B, C, D, E, which may correspond to representing a change in current displacement of 20%, 40%, 60%, 80%, and 100%, respectively.

In an alternative embodiment, the length of the displacement sensor link is greater than the length of the displacement sensor coil in order to ensure that the displacement can be read as accurately and conveniently as possible, while at the same time ensuring the stability of the displacement sensor.

In an alternative embodiment, the through hole is circular or square in order to facilitate the fitting of the displacement sensor link.

In other embodiments, the through-hole can also be triangle-shaped, trapezoidal, regular pentagon, regular hexagon and regular octagon etc. as long as can with the displacement sensor connecting rod adaptation of corresponding shape can, concrete shape the utility model discloses do not do the restriction.

In an alternative embodiment, the through hole is circular and the displacement sensor link is cylindrical, such that the displacement sensor link is mounted in the through hole to form electromagnetic induction with the displacement sensor coil to generate relative movement.

In an alternative embodiment, the through hole is square, and the displacement sensor connecting rod is quadrangular, so that the displacement sensor connecting rod is installed in the through hole, forms electromagnetic induction with the displacement sensor coil, and generates relative motion.

The embodiment of the utility model provides a beneficial effect is:

through setting up the scale on displacement sensor surface, can read out displacement variation volume directly perceivedly, when displacement sensor's signal was because of various reasons transmission interrupt, still do not influence displacement sensor's reading. In addition, the fault reason can be judged by comparing the displacement value displayed by the scale mark and the displacement value after the signal transmission of the sensor, so that the maintenance of the displacement sensor is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a displacement sensor according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a displacement sensor connecting rod according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of a displacement sensor coil according to a first embodiment of the present invention.

100-displacement sensor; 110-displacement sensor coil; 120-displacement sensor link.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

First embodiment

Referring to fig. 1, the present embodiment provides a displacement sensor 100, as shown in fig. 2 and fig. 3, which includes a displacement sensor coil 110 and a displacement sensor link 120, wherein the displacement sensor coil 110 is provided with a through hole for accommodating the displacement sensor link 120 along an axial direction of the displacement sensor coil 110, so that when the displacement sensor coil 110 is sleeved on a surface of the displacement sensor link 120, the displacement sensor coil and the displacement sensor link 120 generate a relative motion through electromagnetic cooperation, and the surface of the displacement sensor link 120 is provided with scales for displaying a displacement amount.

In the present embodiment, the displacement sensor coil 110 and the displacement sensor link 120 are of conventional coil and link structures, for example, the displacement sensor link 120 is an iron core link, and the displacement sensor coil 110 is a magnetic control coil.

In this embodiment, for convenience of reading and writing, the scale marks are numerical marks, and the scale indication is 0 to 100%.

Specifically, in the present embodiment, the scale marks are 0%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, and 100%.

The current displacement amount is 0% of displacement, 5% of displacement, 10% of displacement, 15% of displacement, 20% of displacement, 25% of displacement, 30% of displacement, 35% of displacement, 40% of displacement, 45% of displacement, 50% of displacement, 55% of displacement, 60% of displacement, 65% of displacement, 70% of displacement, 75% of displacement, 80% of displacement, 85% of displacement, 90% of displacement, 95% of displacement and 100% of displacement.

In other embodiments, the scale mark may be any one of a symbol mark or a letter mark.

In the present embodiment, in order to ensure that the displacement amount can be read out as accurately and conveniently as possible, and at the same time, in order to ensure the stability of the displacement sensor 100, the length of the displacement sensor rod 120 is greater than the length of the displacement sensor coil 110.

In the present embodiment, in order to facilitate the fitting of the displacement sensor rod 120, the through hole is circular, and the displacement sensor rod 120 is cylindrical, so that the displacement sensor rod 120 is installed in the through hole to form electromagnetic induction with the displacement sensor coil 110, and generate relative movement.

In other embodiments, the through hole may be square, triangular, trapezoidal, regular pentagon, regular hexagon, regular octagon, etc., as long as it can be adapted to the displacement sensor connecting rod 120 corresponding to the shape, and the present invention is not limited to the specific shape.

The embodiment of the utility model provides a pair of displacement sensor 100, its theory of operation is as follows:

when the signal of the displacement sensor 100 is disconnected, the displacement sensor link 120 is installed in the through hole, the displacement sensor 100 is started, and due to the electromagnetic induction phenomenon existing between the displacement sensor link 120 and the displacement sensor coil 110, the displacement sensor link 120 can move back and forth in the through hole, and the displacement is read according to the scale mark corresponding to the length of the displacement sensor link 120 extending out of the displacement sensor coil 110.

When the signals of the displacement sensor 100 are connected, the displacement sensor link 120 is installed in the through hole, the displacement sensor 100 is started, and due to the electromagnetic induction phenomenon existing between the displacement sensor link 120 and the displacement sensor coil 110, the displacement sensor link 120 can move back and forth in the through hole, and the displacement is read according to the scale marks corresponding to the length of the displacement sensor link 120 extending out of the displacement sensor coil 110. And comparing the displacement read out according to the scale marks with the displacement output by the signal to determine whether the displacement is accurate.

To sum up, the embodiment of the present invention provides a displacement sensor 100, which has at least the following advantages:

by providing the scale on the surface of the displacement sensor 100, the displacement variation can be intuitively read, and when the transmission of the signal of the displacement sensor 100 is interrupted for various reasons, the reading of the displacement sensor 100 is still not affected. In addition, the fault reason can be judged by comparing the displacement value displayed by the scale mark with the displacement value after the sensor signal transmission, so that the maintenance of the displacement sensor 100 is facilitated.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The displacement sensor is characterized by comprising a displacement sensor coil and a displacement sensor connecting rod, wherein the displacement sensor coil is arranged along the axial direction of the displacement sensor coil and is provided with a through hole used for containing the displacement sensor connecting rod, so that the displacement sensor coil and the displacement sensor connecting rod generate relative motion through electromagnetic matching, and scales are arranged on the surface of the displacement sensor connecting rod and are used for displaying displacement.

2. The displacement sensor of claim 1, wherein the scale markings are any one of numeric markings or alphabetical markings.

3. The displacement sensor of claim 2, wherein the scale indication is 0-100% when the scale indication is a numeric indication.

4. The displacement sensor of claim 2, wherein the scale marks are a-E when the scale marks are letter marks.

5. The displacement sensor of claim 1, wherein the displacement sensor link has a length greater than a length of the displacement sensor coil.

6. The displacement sensor of claim 1, wherein the through-hole is circular or square.

7. The displacement sensor of claim 6, wherein the through-hole is circular and the displacement sensor rod is cylindrical.

8. The displacement sensor of claim 6, wherein the through-hole is square and the displacement sensor linkage is a quadrangular prism.

Images