CN204241353U - The titration sensor for countering of anti-refraction - Google Patents
The titration sensor for countering of anti-refraction Download PDFInfo
- Publication number
- CN204241353U CN204241353U CN201420802774.1U CN201420802774U CN204241353U CN 204241353 U CN204241353 U CN 204241353U CN 201420802774 U CN201420802774 U CN 201420802774U CN 204241353 U CN204241353 U CN 204241353U
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- China
- Prior art keywords
- hole
- aperture
- titration
- refraction
- countering
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a kind of titration sensor for countering of anti-refraction, comprise housing, described housing is provided with titration detect aperture, described titration detect aperture is vertical through hole, the hole wall of described titration detect aperture is provided with the transmitting aperture vertical with described detect aperture and the receiver hole relative with described transmitting aperture, described transmitting aperture is provided with infrared transmitting tube, described receiver hole is provided with infrared receiving tube, the light transmit direction of described infrared transmitting tube is towards described infrared receiving tube, the aperture of described transmitting aperture is greater than the aperture of described receiver hole, described infrared receiving tube access collecting sensor signal circuit, described collecting sensor signal circuit connects the single-chip microcomputer for counting, described single-chip microcomputer is preferably MCU, and be provided with USB interface, the right side of described housing is provided with vertical auxiliary positioning hole or auxiliary positioning groove, left side is provided with vertical mounting hole.The utility model can prevent from reflecting the repeat count caused effectively, and reaction velocity is fast, and can provide auxiliary positioning for other apparatuses.
Description
Technical field
The utility model relates to a kind of titration sensor for countering of anti-refraction.
Background technology
The titrimeter counting apparatus of existing employing optical test comprises the photoelectricity door be made up of light-emitting component and the photoresistance corresponding with it, when the photoelectricity door of object process, shelter from the light of directive photoresistance, principle of work is caused to be that illuminance changes the change making photoresistance resistance, and cause the change of photoresistance both end voltage, this voltage change signal is passed on counter by sensing circuit and is undertaken counting and adding up by counter, when stopping without object in door, illumination is mapped in photoresistance, the resistance of photoresistance reduces, photoresistance two ends are low-voltage, when there being object to stop in door, direct projection light is blocked, the illuminance that photoresistance is subject to reduces, resistance increases, photoresistance two ends are high voltage, the process recovering initial value is again raised through a voltage, rolling counters forward once.The major defect of existing product comprises: when carrying out drop detection, because drop is to the refraction action of light, is easy to the phenomenon that appearance drop produces two countings, lacks the fixing design of auxiliary probe, be not easy to operation.
Utility model content
In order to overcome the above-mentioned defect of prior art, the utility model provides a kind of titration sensor for countering of anti-refraction, and this sensor can prevent a level meter to become two numbers effectively, and can bring operational facility to user.
The technical scheme that the utility model adopts: a kind of titration sensor for countering of anti-refraction, comprise housing, described housing is provided with titration detect aperture, the hole wall of described titration detect aperture is provided with the transmitting aperture vertical with described detect aperture and the receiver hole relative with described transmitting aperture, light-emitting component is provided with in described transmitting aperture, infrared receiving tube is provided with in described receiver hole, the light emission direction of described light-emitting component is towards described infrared receiving tube, the aperture of described transmitting aperture is greater than the aperture of described receiver hole, described infrared receiving tube access collecting sensor signal circuit, described collecting sensor signal circuit connects the single-chip microcomputer for counting.
The beneficial effects of the utility model: because transmitting aperture is large aperture, receiver hole is small-bore, efficiently avoid refract light to the interference detected, single-chip microcomputer simultaneously also owing to adopting carries out signal transacting and counting, effectively improve the corresponding time, can be filtered the data within the scope of ineffective time by single-chip microcomputer, make data more accurate, accuracy of detection is higher.
Accompanying drawing explanation
Fig. 1 is the utility model circuit framework schematic diagram;
Fig. 2 is the utility model internal mechanical organigram.
Embodiment
See Fig. 1-2, the titration sensor for countering of the anti-refraction that the utility model provides comprises housing, described housing is provided with titration detect aperture 1, described titration detect aperture is vertical through hole, the hole wall 11 of described titration detect aperture is provided with the transmitting aperture 13 vertical with described detect aperture and the receiver hole 9 relative with described transmitting aperture, described transmitting aperture is provided with light-emitting component 12, described receiver hole is provided with infrared receiving tube 8, the light transmit direction of described light-emitting component is towards described infrared receiving tube, the aperture of described transmitting aperture is greater than the aperture of described receiver hole, described infrared receiving tube access collecting sensor signal circuit, described collecting sensor signal circuit connects the single-chip microcomputer for counting.During use, drop is in the process of passing detect aperture, shelter from the light of directive infrared receiving tube, the output level of infrared receiving tube changes, and forms the signal that drop passes thus, the pin that MCU detects infrared receiving tube changes and starts timing, drop is through afterwards, and the intensity of illumination that infrared receiving tube is subject to recovers initial value, and terminal voltage also recovers initial value, according to the change of infrared receiving tube both end voltage, single-chip microcomputer carries out droplet counting.
Preferably, described single-chip microcomputer and collecting sensor signal circuit are arranged on the circuit board 2, and described circuit board is arranged in described housing.
Preferably, the edge of described circuit board is provided with quantity many three and pilot hole 6 not on same straight line, be provided with corresponding reference column in described housing, described pilot hole is socketed on the reference column corresponding with it, realizes the accurate location to circuit board thus.
Preferably, described single-chip microcomputer is MCU (Micro Control Unit, micro-control unit).
Preferably, described single-chip microcomputer is connected with USB interface 7, to carry out data transmission, according to actual needs, can also arrange other interfaces and/or communication module.
Preferably, described light-emitting component is infrared transmitting tube.
Preferably, the mounting structure coordinated with described light-emitting component and infrared receiving tube is respectively provided with in described housing, the groove of such as setting-in, fixing buckle, fixing pressing plate etc., the mounting structure coordinated with described light-emitting component is positioned on described transmitting aperture and/or by transmitting aperture, and the mounting structure coordinated with described infrared receiving tube is positioned on described receiver hole and/or by receiver hole.Receive and the fixing screens of design between transmitter, thus improve mechanical stability and produce the consistance of installing.
Preferably, the top of described infrared transmitting tube is concordant with the port of described transmitting aperture, described infrared receiving tube is positioned at described receiver hole, and leave distance between the port of described receiver hole, if described titration detect aperture is launched, described receiver hole is long narrow cylindrical void, narrow limit in the height direction, compared with the drop counter in existing circular reception hole, due to entering of the refracted ray after drop can be reduced, therefore can reduce further or avoid repeat count, thus acquisition detects data more reliably; Described transmitting aperture is circular hole, but larger than the transmitting aperture aperture of existing drop counter; Increase transmitting aperture, reduce receiving aperture, can the response time be improved, reduce the generation of refraction.
The right side of described housing is provided with vertical auxiliary positioning hole or auxiliary positioning groove 10, and described auxiliary positioning hole is round tube hole, and described auxiliary positioning groove is cylindricality groove, and its xsect is in being greater than the arc of semicircle.In using, can the placement of other apparatuses (probes of the sensors such as such as pH, conductivity and temperature) be carried out with these auxiliary positioning hole/grooves and fix.
Preferably, the left side of described housing is provided with vertical mounting hole 3, and the left end end face of described housing is provided with the fastener hole 5 penetrating into described mounting hole, is provided with the internal thread supporting with fastening bolt in described fastener hole, such as, a pre-buried nut 4 with described internal thread in fastener hole.Mounting hole is enclosed within mounting rod, screw fastening bolt, the inner end of fastening bolt is made to be pressed on mounting rod, just can realize this device fixing on mounting rod, and the peach core structure of mounting hole, make it can be adapted to the mounting rod of various diameter, just can fasten as long as mounting hole can be enclosed within this mounting rod.
Preferably, described mounting hole is the peach-shaped hole (side, edge of xsect is circular arc, and opposite side is the hole in dihedral) of angle end inside (namely on right side).
The course of work of the present utility model is: after device power-on, and infrared receiving tube is receiving the light (such as the light of 880nm wavelength) sent of power valve always.When blocking T-R tube, MCU detects that the pin of receiving tube changes and starts timing, after shelter is removed, MCU this detect receiving tube pin change and at a secondary meter time point.The time that shelter blocks is calculated by two time points.MCU by serial ports to host computer transmitting data information.
Alleged by the utility model, the left and right facility being only used to state, to distinguish both sides, does not form restriction reality being used to orientation.
Each optimization technique means disclosed in the utility model, unless otherwise indicated and optimization technique means be outside the further restriction of another technological means, all can combination in any, form some different technical schemes.
Claims (10)
1. the titration sensor for countering of an anti-refraction, comprise housing, described housing is provided with titration detect aperture, described titration detect aperture is vertical through hole, the hole wall of described titration detect aperture is provided with the transmitting aperture vertical with described detect aperture and the receiver hole relative with described transmitting aperture, described transmitting aperture is provided with light-emitting component, described receiver hole is provided with infrared receiving tube, the light transmit direction of described light-emitting component is towards described infrared receiving tube, it is characterized in that the aperture of described transmitting aperture is greater than the aperture of described receiver hole, described infrared receiving tube access collecting sensor signal circuit, described collecting sensor signal circuit connects the single-chip microcomputer for counting.
2. the titration sensor for countering of anti-refraction as claimed in claim 1, it is characterized in that described single-chip microcomputer and collecting sensor signal circuit are arranged on circuit boards, described circuit board is arranged in described housing.
3. the titration sensor for countering of anti-refraction as claimed in claim 2, it is characterized in that the edge of described circuit board is provided with quantity many three and pilot hole not on same straight line, be provided with corresponding reference column in described housing, described pilot hole is socketed on the reference column corresponding with it.
4. the titration sensor for countering of anti-refraction as claimed in claim 3, is characterized in that described single-chip microcomputer is MCU.
5. the titration sensor for countering of anti-refraction as claimed in claim 4, is characterized in that described single-chip microcomputer is connected with USB interface.
6. the titration sensor for countering of anti-refraction as claimed in claim 5, is characterized in that described light-emitting component is infrared transmitting tube.
7. the titration sensor for countering of anti-refraction as claimed in claim 6, it is characterized in that in described housing, being provided with the mounting structure coordinated with described light-emitting component and infrared receiving tube respectively, the mounting structure coordinated with described light-emitting component is positioned on described transmitting aperture and/or by transmitting aperture, and the mounting structure coordinated with described infrared receiving tube is positioned on described receiver hole and/or by receiver hole.
8. the titration sensor for countering of anti-refraction as claimed in claim 7, it is characterized in that the top of described infrared transmitting tube is concordant with the port of described transmitting aperture, described infrared receiving tube is positioned at described receiver hole, and leaves distance between the port of described receiver hole.
9. the titration sensor for countering of the anti-refraction as described in claim 1,2,3,4,5,6,7 or 8, it is characterized in that the right side of described housing is provided with vertical auxiliary positioning hole or auxiliary positioning groove, described auxiliary positioning hole is round tube hole, described auxiliary positioning groove is cylindricality groove, and its xsect is in being greater than the arc of semicircle.
10. the titration sensor for countering of anti-refraction as claimed in claim 9, it is characterized in that the left side of described housing is provided with vertical mounting hole, the left end end face of described housing is provided with the fastener hole penetrating into described mounting hole, be provided with the internal thread supporting with fastening bolt in described fastener hole, described mounting hole is that angle end is inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802774.1U CN204241353U (en) | 2014-12-18 | 2014-12-18 | The titration sensor for countering of anti-refraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802774.1U CN204241353U (en) | 2014-12-18 | 2014-12-18 | The titration sensor for countering of anti-refraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204241353U true CN204241353U (en) | 2015-04-01 |
Family
ID=52770834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420802774.1U Expired - Fee Related CN204241353U (en) | 2014-12-18 | 2014-12-18 | The titration sensor for countering of anti-refraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204241353U (en) |
-
2014
- 2014-12-18 CN CN201420802774.1U patent/CN204241353U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20201218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |