CN103822648A

CN103822648A - Sensor

Info

Publication number: CN103822648A
Application number: CN201410093853.4A
Authority: CN
Inventors: 何雪松
Original assignee: XIAMEN YIGAN INTELLIGENT MEASUREMENT & CONTROL TECHNIQUE Co Ltd
Current assignee: XIAMEN YIGAN INTELLIGENT MEASUREMENT & CONTROL TECHNIQUE Co Ltd
Priority date: 2014-03-14
Filing date: 2014-03-14
Publication date: 2014-05-28
Anticipated expiration: 2034-03-14
Also published as: CN103822648B

Abstract

The invention relates to a sensor, and particularly relates to a structure improvement of a sensor, with which various fluid media can be fully in contact with a measurement probe. A probe of the sensor disclosed by the invention comprises an internal element and an outer shell with which the internal element is sleeved, wherein the internal element is internally provided with a chip body; the surface of the internal element is provided with a spiral channel; the lower end of the outer shell is provided with an opening, so that the internal element and the outer shell with which the internal element is sleeved form a hollow dual-layer structure which is provided with the spiral channel and is open at the lower end; a plurality of through holes are formed in the outer shell and correspond to the internal spiral channel. The sensor provided by the invention is used for performing sensing measurement on a fluid.

Description

Sensor

Technical field

The present invention relates to sensor, specifically refer to the architecture advances of the abundant sensor that contact with measuring sonde of all kinds of fluid media (medium)s energy.

Background technology

Existing sensor (mainly referring to temperature sensor, chemical analysis sensor) probe is all simple cylinder or the geometric configuration such as square, and the measuring media amount that is in contact with it is few, surface of contact is not enough; Thereby there is the technical deficiency part that reaction is slow, precision is not high, measured medium can not pass to related physical property, chemical characteristic sensor in the structure of existing sensor.

Summary of the invention

Therefore, the weak point existing for solving prior art of the present invention, proposes a kind of sensor that all kinds of fluid media (medium)s can fully be contacted with measuring sonde

The present invention is concrete adopts following technical scheme to realize:

A kind of sensor, the probe of this sensor comprises the shell body of an inner part and sheathed this inner bulk, the inside of this inner part is provided with core body, the surface of this inner part has one section of spiral channel, the lower end of this shell body has opening, thereby the shell body of this inner part and sheathed this inner bulk forms a structure with a hollow bilayer helical duct and lower ending opening, and this shell body offers multiple through holes in the position of corresponding inner helical duct.

Wherein, multiple through holes of offering on this shell body are roughly to distribute point-blank.

Or multiple through holes of offering on shell body are to be roughly distributed in more than two on straight line.And preferred, 2 straight lines of outermost are acute angles with the minimum angle of two planes that the axis of shell body forms.

The external diameter of the through hole of wherein, offering on this shell body is the spacing of the adjacent convex ridge of spiral channel.

The through hole of through hole circular hole, square hole, elliptical aperture or other shapes of wherein, offering on this shell body.

Wherein preferred, multiple through holes of offering on this shell body can be replaced by oblon slot.

The present invention adopts as above technical scheme, adopt a sonde configuration with the structure of a hollow bilayer helical duct and lower ending opening, can make medium enter after the helical duct of internal layer, under the effect of centrifugal force, can be vortex mode in internal flow according to helical channel structure, a part is exported from next through hole, or until from exporting at lower ending opening.Like this, fluid media (medium) will with measuring sonde repeatedly, repeatedly, large area contacts.Simultaneously because fluid enters after this hollow double-layer structure, because of fluid tunnel effect, rate of flow of fluid slows down, so fluid media (medium) can have sufficient touch opportunity and reaction time with measurement core body, thereby make various physics and chemical characteristic that measured medium carries can pass to fully, exactly measuring sonde, and then change into useful electric signal.Thereby sensor of the present invention has overcome prior art above shortcomings part.

Accompanying drawing explanation

Fig. 1 a is the three-dimensional structure diagram () of embodiment 1;

Fig. 1 b is the three-dimensional structure diagram (two) of embodiment 1;

Fig. 2 is the structure skeleton view of embodiment 1;

Fig. 3 longitudinally excises the structural representation after a part of shell body in embodiment 1;

Fig. 4 is the three-dimensional structure diagram of embodiment 2;

Fig. 5 longitudinally excises the structural representation after a part of shell body in embodiment 2;

Fig. 6 is the three-dimensional structure diagram of embodiment 3;

Fig. 7 is the schematic diagram that embodiment 1 measures;

Fig. 8 is the principle schematic of embodiment 1 while measuring.

Embodiment

Sensor has a measuring probe conventionally, and probe generally comprises the core body of measurement and the external structure of protection and conduction measurement amount.If wired sensor also can have a cable conventionally, cable is connected to the upper end of this probe, and has electric connection with the inner core body of popping one's head in, and is used to provide and measures electric energy and transmit transducing signal.If wireless sensor, because the inside of popping one's head in is provided with wireless communication module and battery module, does not have cable.

In embodiments of the invention, be explanation as an example of wired sensor example, but should be used for limiting embodiments of the present invention, structure of the present invention also can be applied in wireless senser.

Now the present invention is further described with embodiment by reference to the accompanying drawings.

Embodiment 1:

Consult shown in Fig. 1 a, Fig. 1 b and Fig. 2, Fig. 3, the sensor of this embodiment has comprised that one is measured probe 1 used and the cable 2 of upper end that is connected this probe 1.Wherein, the probe 1 of sensor comprises the shell body 12 of an inner part 11 and sheathed this inner bulk 11, the inside of this inner part 11 is provided with the core body (not shown) of sensor, the surface of this inner part 11 has one section of spiral channel 110, the lower end of this shell body 12 has opening 120, thereby the shell body 12 of this inner part 11 and sheathed this inner bulk 11 forms a structure with a hollow bilayer helical duct and lower ending opening; And this shell body 12 offers multiple through holes 121 in the position of corresponding inner helical duct.Wherein, multiple through holes 121 of offering on this embodiment China and foreign countries housing 12 are distributed on two straight lines (being convenient to processing), and the spacing in the hole on these two straight lines is very approaching, thereby the minimum angle that meets two planes of the axis composition of these 2 straight lines and shell body 12 is acute angle.

Supplementary notes: in other embodiments, multiple through holes 121 of offering on shell body 12 are strict being arranged on straight line not necessarily, and also a first from left is positioned at straight line both sides rightly respectively, as long as being roughly distributed on straight line.In addition, the through hole 121 of offering on the shell body 12 in above-described embodiment 1 is on two straight lines, and in other embodiments, multiple through holes 121 of offering on shell body 12 can be also roughly to distribute point-blank.Or can be also, multiple through holes 121 of offering on shell body 12 are to be roughly distributed in more than three on straight line, but in this case, the minimum angle of two planes of 2 straight lines of outermost and the axis of shell body 12 composition is acute angle, and can not be branch's mode (making fluid have fluid tunnel effect at inner helical duct) at 180 degree angles; Preferred minimum angle is the acute angle that is not more than 45 degree.

In addition, for multiple through holes 121 of making to offer on shell body 12 more may be large, flow into more multithread body, the external diameter of the through hole 121 of offering on this shell body 12 is that more to approach the spacing of two adjacent convex ridges 111 of the spiral channel 110 of inner part 11 better.

In various embodiments, inner part 11 can carry out sheathed being fixedly connected with by known any-mode with shell body 12, for example, bond, be threaded, or utilize the 3D printing technique of state-of-the-art technology one-body molded.In this embodiment 1, this inner part 11 is the structures that are first processed into surface and have one section of spiral channel, the inwall of this shell body 12 is processed into has internal thread, like this, the convex ridge of the spiral channel of inner part 11 is equivalent to an external thread, inner part 11 is directly screwed in to shell body 12 and can realize sheathed.

Embodiment 2:

Consult shown in Fig. 4 and Fig. 5, this embodiment 2 is substantially the same manner as Example 1, and difference is: the through hole 121 of offering on the shell body 12 in this embodiment 2 is square holes, and the through hole 121 of offering on embodiment 1 China and foreign countries' housing 12 is circular holes.Certain, the through hole 121 of offering on the shell body 12 in other embodiment can be also the through hole of elliptical aperture or other shapes.

And multiple through holes 121 of offering on the shell body 12 in this embodiment 2 can be also roughly to distribute point-blank, and other shift gears, all can be with reference to the above-mentioned explanation of embodiment 1.

Embodiment 3:

Consult shown in Fig. 6, this embodiment 3 is different from the mode of offering multiple through holes 121 on shell body 12 of above-described embodiment 1 and embodiment 2, is to substitute with oblon slot 122, and remainder is identical.Substitute above-mentioned arranged distribution design of multiple through holes 121 on straight line more than 1 or 2 by oblon slot 122 on shell body 12, substantially also can reach similar effect, but more convenient in processing and manufacturing.

For being illustrates that sensor of the present invention has the technological merit than prior art really in further detail, further launch explanation with the measurement application mode of embodiment 1 below.

Consult shown in Fig. 7 and Fig. 8, embodiment 1 is installed to be positioned in a pipeline 3 and measure.Install while placing the probe 1 of this embodiment 1, make to offer on the shell body 12 of this probe 1 through hole 121 and the direction of flow tangent or general tangential (low-angle is good) of trying one's best.Like this, in the time that the fluid in pipeline 3 (can be liquid or gas) flows through, enter probe inside by offering through hole 121 on shell body 12, because probe 1 inner part 11 and the shell body 12 of sheathed this inner bulk 11 form a structure with a hollow bilayer helical duct and lower ending opening, fluid media (medium) enters after the helical duct of internal layer, under the effect of centrifugal force, can be vortex mode in internal flow according to helical channel structure, a part is exported from the through hole 121 of next spiral channel 110 correspondences, or more parts are until export at the opening 120 of the lower end of this shell body 12.Like this, fluid media (medium) by with the probe 1 of measuring repeatedly, repeatedly, large area contacts.Simultaneously because fluid enters after this hollow double-layer structure of this probe 1, because of fluid tunnel effect, rate of flow of fluid slows down, so fluid media (medium) can with the inner part of this probe 1 11 in measurement have sufficient touch opportunity and reaction time with core body, thereby make various physics and chemical characteristic that measured medium carries can pass to fully, exactly measuring sonde 1, and then change into useful electric signal and transfer to collection terminal by cable 2.

Embodiments of the invention are after reality test relatively, and the interior surface area in 1 of popping one's head in this embodiment is at least more than 5 times than the surface area of the probe of the sensor of prior art; After improving by this hollow double-layer structure, the reaction velocity of the sensor of this embodiment is than at least improve of the sensor of prior art more than 8 times again; For the measurement of chemical reagent, the measurement that the sensor of this embodiment compares chemical reaction in the time of the sensor of prior art has at least improved more than 6 times efficiency.Thereby the sensor of invention, than the sensor of prior art, has reaction soon and the high technical advantage of precision.

Although specifically show and introduced the present invention in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; can make a variety of changes the present invention in the form and details, be protection scope of the present invention.

Claims

1. a sensor, it is characterized in that, the probe of this sensor comprises the shell body of an inner part and sheathed this inner bulk, the inside of this inner part is provided with core body, the surface of this inner part has one section of spiral channel, the lower end of this shell body has opening, thereby the shell body of this inner part and sheathed this inner bulk forms a structure with a hollow bilayer helical duct and lower ending opening, and this shell body offers multiple through holes in the position of corresponding inner helical duct.

2. sensor according to claim 1, is characterized in that: multiple through holes of offering on this shell body are roughly to distribute point-blank.

3. sensor according to claim 1, is characterized in that: multiple through holes of offering on shell body are to be roughly distributed in more than two on straight line.

4. sensor according to claim 3, is characterized in that: the minimum angle of two planes of 2 straight lines of outermost and the axis of shell body composition is acute angle.

5. according to the sensor described in claim 1 or 2 or 3, it is characterized in that: the external diameter of the through hole of offering on this shell body is the spacing of the adjacent convex ridge of spiral channel.

6. sensor according to claim 5, is characterized in that: the through hole of through hole circular hole, square hole, elliptical aperture or other shapes of offering on this shell body.

7. according to the sensor described in claim 1 or 2 or 3, it is characterized in that: multiple through holes of offering on this shell body can be replaced by oblon slot.