CN109884064A - A kind of data acquisition device of liquid sensor - Google Patents
A kind of data acquisition device of liquid sensor Download PDFInfo
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- CN109884064A CN109884064A CN201910331834.3A CN201910331834A CN109884064A CN 109884064 A CN109884064 A CN 109884064A CN 201910331834 A CN201910331834 A CN 201910331834A CN 109884064 A CN109884064 A CN 109884064A
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- data acquisition
- acquisition device
- liquid sensor
- medium block
- liquid
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Abstract
The present invention relates to a kind of data acquisition device of liquid sensor, including substrate, it is provided with main body on the substrate, photosensitive chamber is provided in the main body, is filled with medium block in the main body, and the medium block is located at the two sides of photosensitive chamber；The data acquisition device of the liquid sensor has higher sensitivity, is easy the light of aggregation detection, to the reaction more Ning'an of signal when detection, is easily drained the bubble generated after testing liquid enters, is conducive to the sampling precision, the sensitivity that improve liquid sensor.
Description
Technical field
The invention belongs to sensor technical fields, and in particular to a kind of data acquisition device of liquid sensor.
Background technique
Sensor (English name: transducer/sensor) is a kind of detection device, can experience measured letter
Breath, and the information that can will be experienced are for conversion into electric signal or the information output of other required forms, according to certain rules to meet
The requirement such as transmission, processing, storage, display, record and control of information.
The characteristics of sensor includes: micromation, digitlization, intelligence, multifunction, systematization, networking.It is to realize
The automatic primary link detected and automatically control.The presence and development of sensor allow object to have the sense such as tactile, taste and smell
Official allows object slowly to become to have lived.It is divided into temperature-sensitive element, light-sensitive element, gas sensitive element generally according to its basic perceptional function
Part, force sensing element, magneto sensor, dew cell, acoustic sensor, radioactive ray sensing element, color sensor and quick element of taste etc. ten
Major class.
Liquid sensor is the sensor for detecting characteristics of liquids, and the most important component of liquid sensor is exactly
Sample unit, still, due to the characteristic of liquid, sample unit should consider to acquire liquid to be detected, also consider to obtain data
Sensitivity, accuracy, therefore it provides a kind of sample unit of liquid directly affect liquid sensor acquisition liquid to be detected
Difficulty, accuracy.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of efficiently for acquiring the sampling unit of liquid to be detected
Part.
For this purpose, the present invention provides a kind of data acquisition device of liquid sensor, including substrate, it is arranged on the substrate
There is main body, photosensitive chamber is provided in the main body, is filled with medium block in the main body, and the medium block is located at photosensitive chamber
Two sides.
Dielectric layer is provided between the substrate and main body.
The dielectric layer is made of that have silica.
It is provided with second medium block below the photosensitive chamber, and is provided with multiple through-holes on second medium block.
The bottom of the photosensitive chamber is provided with granular magnetic layer.
The granular magnetic layer is made of magnetic metal nanoparticle.
The width of the photosensitive chamber is 80nm~100nm.
The depth of the photosensitive chamber is 150nm~250nm.
The medium block is made of silica.
The medium block is made of polymethyl methacrylate.
Beneficial effects of the present invention: the data acquisition device of this liquid sensor provided by the invention has higher
Sensitivity is easy the light of aggregation detection, when detection to the reaction more Ning'an of signal, is easily drained and generates after testing liquid enters
Bubble is conducive to the sampling precision, the sensitivity that improve liquid sensor.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is the data acquisition device schematic diagram one of liquid sensor.
Fig. 2 is the data acquisition device schematic diagram two of liquid sensor.
Fig. 3 is the data acquisition device schematic diagram three of liquid sensor.
Fig. 4 is the data acquisition device schematic diagram four of liquid sensor.
Fig. 5 is the reflectivity schematic diagram one of the data acquisition device of liquid sensor.
Fig. 6 is the reflectivity schematic diagram two of the data acquisition device of liquid sensor.
In figure: 1, substrate；2, main body；3, medium block；4, dielectric layer；5, photosensitive chamber；6, granular magnetic layer；7, second medium
Block.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the present invention is further explained, below in conjunction with attached drawing and reality
Example is applied to a specific embodiment of the invention, structure feature and its effect, detailed description are as follows.
Embodiment 1
A kind of data acquisition device of liquid sensor as shown in Figure 1, including substrate 1 are present embodiments provided, it is described
It is provided with main body 2 on substrate 1, photosensitive chamber 5 is provided in the main body 2, is filled with medium block 3 in the main body 2, and described
Medium block 3 is located at the two sides of photosensitive chamber 5, the in this way data acquisition device of the liquid sensor, and the light detected can be from master
Photosensitive chamber 5 on body 2 enters, and when testing liquid enters photosensitive chamber 5, the light of detection can be in photosensitive chamber 5 and liquid to be detected
It has an effect, so that the reflectivity of the light of detection changes；Concretely, when carrying out liquid detecting, in photosensitive chamber 5
The light detected can have an effect with testing liquid, cause the reflectivity of the light of detection to change, when in photosensitive chamber 5
When two sides are provided with medium block 3, the effect that the light detected and testing liquid occur can be enhanced, so as to
Survey liquid is more easier to be detected, and the sensitivity of detection is higher.
Further, the width of the photosensitive chamber 5 is 80nm~100nm, and preferential can choose 90nm, 95nm etc.；Institute
The depth for stating photosensitive chamber 5 is 150nm~250nm, and preferential can choose 220nm, 230nm etc..
Further, medium block 3 can be set to 20nm~30nm at a distance from photosensitive 5 two sides of chamber, and preferential can select
Select 24nm, 25nm etc..
Further, substrate 1 has metal to be made with main body 2, can be stainless steel or gold or silver etc. and has been made.
Further, the medium block 3, dielectric layer 4 are made of to have silica, and silicon dioxide structure is stablized, insoluble
Yu Shui, and there is good optical characteristics, translucency is good, is positioned in the two sides and bottom of photosensitive chamber 5, has fine
Aggregation magnetic field effect, to improve the sensitivity of liquid detecting.
Further, as shown in Fig. 2, being provided with dielectric layer 4 between the substrate 1 and main body 2, which can be into
The effect that the light and testing liquid of one step enhancing detection occur, improves the sensitivity of liquid detecting, 4 distance perception optical cavity 5 of dielectric layer
Distance be 20nm~40nm, preferential can choose 30nm.
Further, as shown in figure 3, the lower section of the photosensitive chamber 5 is provided with second medium block 7, and second medium block 7
On be provided with multiple through-holes, second medium block 7 is contacted with the bottom of photosensitive chamber 5, can be enhanced detection light magnetic field aggregation, thus
The sensitivity of liquid detecting is improved, the setting of through-hole can filter out the bubble in testing liquid, and bubble is avoided to examine liquid
The influence of survey.
Further, it as shown in figure 4, the bottom of the photosensitive chamber 5 is provided with granular magnetic layer 6, can further enhance
The effect that the light and testing liquid of detection occur, improves the sensitivity of liquid detecting.
The granular magnetic layer 6 is made of magnetic metal nanoparticle, for example, gold, silver, Fe nanometer particles etc. form.
Further, the medium block 3 is that polymethyl methacrylate (PMMA) is made, and polymethyl methacrylate has
Good thermal expansion character, in this way under the light action of detection, medium block 3 absorbs heat, expands, photosensitive so as to change
So that photosensitive chamber 5 can not only take into account the complexity of liquid inflow, but also the magnetic field of aggregation can be improved, to mention in the width of chamber 5
The sensitivity of high liquid detecting.
As shown in figure 5, for the optical absorption characteristics after medium block 3, set photosensitive chamber are arranged at left and right sides of photosensitive chamber 5
5 width is 93nm, is highly 220nm；The spacing of medium block 3 and photosensitive chamber 5 is 24nm；It can be found that a length of in incident light wave
When 1060nm~1400nm, reflectivity can be close to 1, and in a length of 1790nm of incident light wave, reflectivity can connect 0.25.
As shown in fig. 6, after for medium block 3 is arranged at left and right sides of photosensitive chamber 5, dielectric layer 4 is arranged below photosensitive chamber 5
Optical absorption characteristics, the distance of 3 distance perception optical cavity 5 of medium block is 20nm~40nm, and preferential can choose 30nm, dielectric layer 4
Distance away from photosensitive 5 bottom surface of chamber of square is 30nm；It can be found that in a length of 1000nm~1160nm of incident light wave, reflectivity can be with
Close to 1, in a length of 1490nm of incident light wave, reflectivity can connect 0.3.
In conclusion the data acquisition device of the liquid sensor has higher sensitivity, it is easy the light of aggregation detection,
The bubble generated after testing liquid enters can be discharged, be conducive to the sampling precision, the sensitivity that improve liquid sensor, Er Qiesuo
Medium block 3, dielectric layer 4, granular magnetic layer 6, the second medium block 7 of setting enable photosensitive chamber 5 to assemble magnetic field very well, into one
Step improves the sensitivity of liquid detecting.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of data acquisition device of liquid sensor, it is characterised in that: including substrate (1), be provided on the substrate (1)
Main body (2) is provided with photosensitive chamber (5) on the main body (2), is filled with medium block (3) in the main body (2), and given an account of
Mass (3) is located at the two sides of photosensitive chamber (5).
2. a kind of data acquisition device of liquid sensor as described in claim 1, it is characterised in that: the substrate (1) with
Dielectric layer (4) are provided between main body (2).
3. a kind of data acquisition device of liquid sensor as claimed in claim 2, it is characterised in that: the dielectric layer (4)
It is made of to have silica.
4. a kind of data acquisition device of liquid sensor as described in claim 1, it is characterised in that: the photosensitive chamber (5)
Lower section be provided with second medium block (7), and be provided with multiple through-holes on second medium block (7).
5. a kind of data acquisition device of liquid sensor as described in claim 1, it is characterised in that: the photosensitive chamber (5)
Bottom be provided with granular magnetic layer (6).
6. a kind of data acquisition device of liquid sensor as claimed in claim 5, it is characterised in that: the granular magnetic layer
(6) it is made of magnetic metal nanoparticle.
7. a kind of data acquisition device of liquid sensor as described in claim 1, it is characterised in that: the photosensitive chamber (5)
Width be 80nm~100nm.
8. a kind of data acquisition device of liquid sensor as described in claim 1, it is characterised in that: the photosensitive chamber (5)
Depth be 150nm~250nm.
9. a kind of data acquisition device of liquid sensor as described in claim 1, it is characterised in that: the medium block (3)
It is made of silica.
10. a kind of data acquisition device of liquid sensor as described in claim 1, it is characterised in that: the medium block (3)
It is made of polymethyl methacrylate.
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| CN201910331834.3A CN109884064B (en) | 2019-04-24 | 2019-04-24 | Data acquisition device of liquid sensor |
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| CN201910331834.3A CN109884064B (en) | 2019-04-24 | 2019-04-24 | Data acquisition device of liquid sensor |
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| CN109884064B CN109884064B (en) | 2021-09-07 |
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