CN207066338U - A kind of new wide range capacitor type wave-height sensing device - Google Patents
A kind of new wide range capacitor type wave-height sensing device Download PDFInfo
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- CN207066338U CN207066338U CN201720504965.3U CN201720504965U CN207066338U CN 207066338 U CN207066338 U CN 207066338U CN 201720504965 U CN201720504965 U CN 201720504965U CN 207066338 U CN207066338 U CN 207066338U
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Abstract
It the utility model is related to a kind of new wide range capacitor type wave-height sensing device, including upper tensioning frame and lower tensioning frame, two capacitance electrodes being parallel to each other are fixedly connected between tensioning frame and lower tensioning frame on described, described two capacitance electrodes being parallel to each other are connected with detection circuit；Its technical characterstic is：The upper end hinge of described two capacitance electrodes being parallel to each other is on upper tensioning frame, and the lower end hinge of two capacitance electrodes being parallel to each other is on lower tensioning frame.The utility model can also ensure the linearity and the depth of parallelism of two capacitance electrodes of wave-height sensing device in the case where range is larger, and then ensure measurement accuracy.
Description
Technical field
The utility model belongs to harbour and offshore engineering physical model experiment studying technological domain, is related to for detecting in real time
The wave-height sensing device of wave height and height of water level, especially a kind of new wide range capacitor type wave-height sensing device.
Background technology
In harbour and offshore engineering experimental study technical field, it is one kind indispensability for carrying out physical model test to make ripple
Experimental method, make in wave process and need to use wave-height sensing device to detect wave height in real time.
In general level gauging, because the change of liquid level is relatively slow and liquid level is smooth, therefore ultrasonic wave, laser, radar, electricity
The liquid level gauges such as resistance, electric capacity, pressure, float can meet measurement demand.Wave height measurement is one kind of level gauging, because liquid level
Change is rapid, so pressure, float-type metering system just can not use, and because liquid level very out-of-flatness, ultrasonic wave, swashs
The modes such as light, radar can not all use, and therefore, resistance or capacitance measurement mode only may be selected in wave height measurement.
At present, general to use small-range capacitor type wave-height sensing device when carrying out wave height measurement, the small-range capacitor type passes
Wave height sensor structure is made up of the two poles of the earth of electric capacity two stainless steel tubes, but experiment shows that only (range is less than when range is smaller
2m), the linearity of the depth of parallelism and every steel pipe between two steel pipes can be ensured, so that it is guaranteed that measurement accuracy.But equivalent
When journey is larger (range is more than 2m), or even range is more than 8m measurement occasion, if still using above-mentioned capacitor type wave-height sensing device
Structure, then the linearity of the depth of parallelism and every steel pipe between two steel pipes can not all ensure, and parallel between two steel pipes
Degree and linearity directly affect the linearity of wave-height sensing device, and so as to influence measurement accuracy, produce causes because range becomes big
The problem of measurement accuracy is low.
A kind of two-wire system capacitor type wave-height sensing device (CN203422058U), including ground connection measuring staff, capacitive sensing silk, line concentration
Axle, upper springlock silk, spring, lower spring lock silk, contiguous block, circuit board, intracavity of handle and handle jacket, the contiguous block and institute
State circuit board to be each attached on the intracavity of handle, the intracavity of handle is fixed in the handle jacket；The one of the spring
End is enclosed on the upper springlock silk, and the upper springlock silk and the line concentration axis connection, the other end of the spring are enclosed on institute
State on lower spring lock silk, the lower spring lock silk is connected with the contiguous block；Characterized in that, the capacitive sensing silk is mutual
Parallel two, two capacitive sensing silks are parallel with the ground connection measuring staff, and the capacitive sensing silk is in the line concentration
On axle convergence after sequentially pass through it is described collection bobbin on centre bore, the upper springlock silk, the spring, the contiguous block and
The lower spring locks silk, one end of the excessively described ground connection measuring staff of an end ring of the capacitive sensing silk, the capacitive sensing silk it is another
One end is connected with the circuit board.The utility model can solve the problem that over long distances transmission signal during can exist electromagnetic interference and
The problem of situation of voltage loss is so as to influence acquisition precision.
Therefore, passed than the high-precision wave height in the case of in chi hydraulic test, how finding one suitable for wide range greatly
Sensor, turn into the technical barrier that those skilled in the art are faced.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of reasonable in design, simple structure, measurement
The high new wide range capacitor type wave-height sensing device of precision.
The utility model solves its technical problem and takes following technical scheme to realize：
A kind of new wide range capacitor type wave-height sensing device, including upper tensioning frame and lower tensioning frame, the tensioning frame on described
Two capacitance electrodes being parallel to each other, described two capacitance electrodes being parallel to each other and inspection are fixedly connected between lower tensioning frame
Slowdown monitoring circuit is connected；On upper tensioning frame, this two are parallel to each other the upper end hinge of described two capacitance electrodes being parallel to each other
Capacitance electrode lower end hinge on the lower tensioning frame.
Moreover, the side end face and bottom surface of the upper tensioning frame are uncovered structure, end face is formed with use at the top of tensioning frame on this
In the through hole for installing tensioning bolt, the tensioning bolt is through the through hole and the upper tensioning being placed in the inwall of upper tensioning frame both sides
Block is threadedly coupled；The symmetrical upper collets of insertion two in tensioning block on this；Described two upper collets respectively with two phases
Mutually the upper end of parallel capacitance electrode is installed together, and the lower end of two capacitance electrodes being parallel to each other under two respectively with insulating
Block is installed together, and the lower collets are inlaid in lower tensioning block, and the lower tensioning block can be left around the rotating shaft on lower tensioning frame
Right rotation.
Moreover, described two capacitance electrodes being parallel to each other are made up of two length identical steel wires, the steel wire outsourcing
It is covered with insulating barrier.
Moreover, the lower tensioning frame is made up of lower installation board and the rotating shaft being packed on lower installation board, the rotating shaft front end
The screw thread for installing lower tensioning block is formed with, the lower tensioning block is connected with the rotating shaft on lower tensioning frame using axis hole, its front end
Rotating shaft on be coaxially installed with nut and pad for locking lower tensioning block.
Moreover, the lower tensioning block is one piece of square plate, symmetrically it is formed with left and right sides of the square plate for installing two mutually
The elongated slot of parallel capacitance electrode, is embedded with lower collets in the elongated slot, under described two capacitance electrodes being parallel to each other
End is installed together with two lower collets being inlaid in elongated slot respectively.
Moreover, the both ends of described two capacitance electrodes being parallel to each other are threaded onto corresponding upper collets and lower insulation respectively
In the groove of block, the both ends of two capacitance electrodes being parallel to each other are packed on corresponding through the groove and by snap ring
On collets and lower collets.
Moreover, it is full of insulating cement in the gap of the lower collets.
Moreover, the upper tensioning frame and lower tensioning frame are packed on tank or pool wall by multiple tube expansions respectively.
Moreover, the detection circuit includes C-T modular converters, single-chip microcomputer, Serial output module and power module；The C-
T modular converters use monostable flipflop, and the input of the C-T modular converters is connected with capacitance electrode, the C-T modular converters
Output end be connected with single-chip microcomputer, output is to monolithic after the charge-time signal for sensor capacitance to be converted to electric capacity
Machine, the single-chip microcomputer are used to the charge-time signal being changed into available for the digital output for calculating, transmitting and handling extremely
The Serial output module, and communicated by Host μC serial interface with host computer；The output end of the power module turns with C-T
Mold changing block is connected with single-chip microcomputer and is its power supply.
Moreover, the core component of the monostable flipflop is 555 timers, the single-chip microcomputer is 51 single-chip microcomputers, described
Power module uses model LM7805 voltage stabilizing chip.
The advantages of the utility model and good effect are：
1st, the utility model can be used for gathering the wave height being widely varied in real time, when rotation is above tensioned spiral shell on tensioning frame
During bolt, upper tensioning block moves up therewith, so that the capacitance electrode that two in upper collets are parallel to each other is (i.e.：
Two length identical steel wires) it is tightened up, even if in the case where measuring range is larger, it can also ensure the two of wave-height sensing device
The linearity and the depth of parallelism of the individual capacitance electrode being parallel to each other, and then ensure that the measurement accuracy of wide range wave-height sensing device；And
And during upper tensioning block moves up and tenses two capacitance electrodes being parallel to each other, if there is lower tensioning block both sides
The rate of tension inconsistent situation of two capacitance electrodes being parallel to each other when occurring, can by the left rotation and right rotation of lower tensioning block,
The linearity and the depth of parallelism of two capacitance electrodes being parallel to each other of adjust automatically, have further ensured that wide range wave-height sensing device
Measurement accuracy, test of many times proves that the measuring range of the high sensor of wide range ripple capacitor type of the present utility model is up to 8-
10m。
2nd, be coaxially installed with the rotating shaft of lower tensioning block front end of the present utility model nut for locking lower tensioning block and
Pad, so as to prevent lower tensioning block from rotation process, being come off from the rotating shaft of lower tensioning frame.
3rd, the both ends of two capacitance electrodes being parallel to each other of the present utility model are (i.e.：The two of two length identical steel wires
End) it is installed on respectively in the groove on collets and lower collets, and be fixed on by snap ring on corresponding collets, snap ring
For locking two capacitance electrodes being parallel to each other (i.e.：The both ends of steel wire) to prevent its upper collets of abjection and lower collets.
4th, the utility model is full of the gap of lower collets using insulating cement, improves the anti-of capacitor type wave-height sensing device
It is water-based, it is ensured that two length identical steel wire lower ends are insulated with water, and then ensure the accuracy of detection.
Brief description of the drawings
Fig. 1 is overall structure figure of the present utility model；
Fig. 2 is Fig. 1 sectional view；
Fig. 3 is Fig. 2 A portions partial enlarged drawing；
Fig. 4 is detection circuit block diagram of the present utility model；
Fig. 5 is detection circuit diagram of the present utility model.
Embodiment
The utility model embodiment is described in further detail below in conjunction with accompanying drawing：
A kind of new wide range capacitor type wave-height sensing device, as shown in Figure 1, Figure 2 and Figure 3, including is packed on flume wall
Or the upper tensioning frame 1 on large-scale push wave plate and lower tensioning frame 5, it is fixedly connected with two between tensioning frame and lower tensioning frame on described
The individual capacitance electrode being parallel to each other, described two capacitance electrodes being parallel to each other are connected with detection circuit；It is described two mutual
For the upper end hinge of parallel capacitance electrode on upper tensioning frame, the lower end hinge of two capacitance electrodes being parallel to each other is mounted in lower
On tight frame.
In the present embodiment, a side end face of the upper tensioning frame and bottom surface are uncovered structure, tensioning frame top end on this
Face is formed with the through hole for installing tensioning bolt 2, the tensioning bolt through the through hole and be placed in tensioning frame both sides inwall it
Between upper tensioning block 11 be threadedly coupled, when rotating tensioning bolt, the upper tensioning block can be along the upper tensioning frame both sides inwall
Move up；The symmetrical upper collets 13 of insertion two in tensioning block on this；Described two upper collets respectively with two phases
Mutually the upper end of parallel capacitance electrode is installed together, and the lower end of two capacitance electrodes being parallel to each other under two respectively with insulating
Block 7 is installed together, and the lower collets are inlaid in lower tensioning block 10, and it is mutually flat to move up tension two in upper tensioning block
During capable capacitance electrode, lower tensioning block can be around the rotating shaft 5-2 left rotation and right rotations on lower tensioning frame.Described two are parallel to each other
Capacitance electrode be made up of two length identical steel wires 4, the steel wire is coated with insulating barrier 15.
In the present embodiment, the lower tensioning frame is by lower installation board 5-1 and the rotating shaft 5-2 structures being packed on lower installation board
Into the rotating shaft front end is formed with the screw thread for installing lower tensioning block, and the lower tensioning block uses with the rotating shaft on lower tensioning frame
Axis hole is connected, and nut 8 and pad 9 for locking lower tensioning block are coaxially installed with the rotating shaft of its front end, so as to prevent down opening
Tight block comes off in free rotation process from the rotating shaft of lower tensioning frame.
In the present embodiment, the lower tensioning block is one piece of square plate, is symmetrically formed with left and right sides of the square plate for installing
The elongated slot 6 of two capacitance electrodes (i.e. two length identical steel wires) being parallel to each other, is embedded with lower collets in the elongated slot,
The lower end of described two capacitance electrodes being parallel to each other is installed together with two lower collets being inlaid in elongated slot respectively.
In the present embodiment, it is formed respectively with being used to install two phases on collets and two lower collets on two
The mutually groove of parallel capacitance electrode (two length identical steel wires), the both ends point of two capacitance electrodes being parallel to each other
In the groove of upper collets and lower collets corresponding to not being threaded onto, the both ends of two capacitance electrodes being parallel to each other pass through institute
State groove and be packed in by snap ring 12 on corresponding upper collets and lower collets, the snap ring is used for locking steel wire to prevent
Two capacitance electrodes being parallel to each other are during upward tense, the groove of collets and lower collets in abjection.
In the present embodiment, it is full of insulating cement 14 in the gap of the lower collets.
In the present embodiment, the upper tensioning frame and lower tensioning frame are packed in tank or pond by four tube expansions 3 respectively
On wall.
In the present embodiment, the detection circuit is as shown in Figure 4 and Figure 5, including C-T modular converters, single-chip microcomputer, serial defeated
Go out module and power module；The C-T modular converters use monostable flipflop, the input and electric capacity of the C-T modular converters
Electrode is connected, and the output end of the C-T modular converters is connected with single-chip microcomputer, and the core component of the monostable flipflop is 555
Timer, the charge-time signal for sensor capacitance to be converted to electric capacity are exported to single-chip microcomputer, and the single-chip microcomputer is 51
Single-chip microcomputer, for the charge-time signal to be changed into available for the digital output for calculating, transmitting and handling to the string
Row output module, and communicated by Host μC serial interface with host computer；The output end of the power module and C-T modular converters
Be connected with single-chip microcomputer and be its power supply.
Wide range capacitor type wave-height sensing device measurement accuracy of the present utility model is not restricted by power supply precision, therefore is used
The power circuit of in general three terminal regulator such as LM7805 compositions, it is excellent that it has that small volume, cost are low, reliability is high etc.
Point.
Operation principle of the present utility model is：
Upper tensioning frame of the present utility model and lower tensioning frame are fixed on tank or pool wall by tube expansion, and tensioning bolt is worn
The through hole at the top of tensioning frame on end face to be crossed to be threadedly coupled with upper tensioning block, two upper collets are inlaid in tensioning block, under
Tensioning block is that axis hole is connected with lower tensioning frame, and nut and pad are used to lock lower tensioning block, and two lower collets, which are embedded in down, to be opened
In tight block, two root long degree are identical and are surrounded by the steel wire of insulating barrier (i.e.：Two capacitance electrodes being parallel to each other) both ends wear respectively
It is good with snap ring clamping fixed after crossing the groove on collets and lower collets, deviate from upper collets and lower insulation to prevent steel wire
Block, then it is full of with insulating cement the gap of lower collets, it is ensured that two steel wire lower ends insulated with water.
Turn clockwise tensioning bolt when, upper tensioning block moves up in the presence of screw thread, so as to tense two steel wires,
And lower tensioning block can be around the rotating shaft left rotation and right rotation of lower tensioning frame during taut wire so that two steel wires are tightened up and protected
Maintain an equal level row, it is ensured that the linearity and the depth of parallelism of two capacitance electrodes, and then ensure that the accuracy of wave height measurement.Making ripple examination
When testing, lower tensioning frame and part steel wire are placed in below waterline, the capacitance of steel wire is with the depth in steel wire immersion water
Change and linear change.
It is emphasized that embodiment described in the utility model is illustrative, rather than it is limited, therefore this reality
It is every new according to this practicality by those skilled in the art with the new embodiment including being not limited to described in embodiment
The other embodiment that the technical scheme of type is drawn, also belong to the scope of the utility model protection.
Claims (10)
1. a kind of new wide range capacitor type wave-height sensing device, including upper tensioning frame and lower tensioning frame, on described tensioning frame and
Two capacitance electrodes being parallel to each other, described two capacitance electrodes being parallel to each other and detection are fixedly connected between lower tensioning frame
Circuit is connected；It is characterized in that：The upper end hinge of described two capacitance electrodes being parallel to each other is on upper tensioning frame, this two
The lower end hinge for the capacitance electrode being parallel to each other is on lower tensioning frame.
A kind of 2. new wide range capacitor type wave-height sensing device according to claim 1, it is characterised in that：The upper tensioning
One side end face of frame and bottom surface are uncovered structure, and end face is formed with the through hole for installing tensioning bolt at the top of tensioning frame on this, should
Tensioning bolt is threadedly coupled through the through hole with the upper tensioning block being placed in the inwall of upper tensioning frame both sides；On this in tensioning block
The symmetrical upper collets of insertion two；Described two upper collets are pacified with the upper end of two capacitance electrodes being parallel to each other respectively
It is fitted together, the lower end of two capacitance electrodes being parallel to each other is installed together with two lower collets respectively, the lower insulation
Block is inlaid in lower tensioning block, and the lower tensioning block can be around the rotating shaft left rotation and right rotation on lower tensioning frame.
A kind of 3. new wide range capacitor type wave-height sensing device according to claim 1 or 2, it is characterised in that：Described two
The individual capacitance electrode being parallel to each other is made up of two length identical steel wires, and the steel wire is coated with insulating barrier.
A kind of 4. new wide range capacitor type wave-height sensing device according to claim 2, it is characterised in that：The lower tensioning
Frame is made up of lower installation board and the rotating shaft being packed on lower installation board, and the rotating shaft front end is formed with the spiral shell for installing lower tensioning block
Line, the lower tensioning block are connected with the rotating shaft on lower tensioning frame using axis hole, are coaxially installed with the rotating shaft of its front end for locking
The nut and pad of tight lower tensioning block.
A kind of 5. new wide range capacitor type wave-height sensing device according to claim 2, it is characterised in that：The lower tensioning
Block is one piece of square plate, and the elongated slot for installing two capacitance electrodes being parallel to each other symmetrically is formed with left and right sides of the square plate,
Be embedded with lower collets in the elongated slot, the lower ends of described two capacitance electrodes being parallel to each other respectively be inlaid in elongated slot two
Individual lower collets are installed together.
A kind of 6. new wide range capacitor type wave-height sensing device according to claim 2, it is characterised in that：Described two phases
Mutually the both ends of parallel capacitance electrode are threaded onto in the groove of corresponding upper collets and lower collets respectively, and this two mutually flat
The both ends of capable capacitance electrode are packed on corresponding upper collets and lower collets through the groove and by snap ring.
A kind of 7. new wide range capacitor type wave-height sensing device according to claim 6, it is characterised in that：Described lower exhausted
The gap of edge block is full of insulating cement.
A kind of 8. new wide range capacitor type wave-height sensing device according to claim 1 or 2, it is characterised in that：On described
Tensioning frame and lower tensioning frame are packed on tank or pool wall by multiple tube expansions respectively.
A kind of 9. new wide range capacitor type wave-height sensing device according to claim 1 or 2, it is characterised in that：The inspection
Slowdown monitoring circuit includes C-T modular converters, single-chip microcomputer, Serial output module and power module；The C-T modular converters use monostable
Trigger, the input of the C-T modular converters are connected with capacitance electrode, output end and the single-chip microcomputer phase of the C-T modular converters
Connect, output to single-chip microcomputer, the single-chip microcomputer is used for after the charge-time signal for sensor capacitance to be converted to electric capacity
The charge-time signal is changed into available for the digital output for calculating, transmitting and handling to the Serial output module,
And communicated by Host μC serial interface with host computer；The output end of the power module and C-T modular converters and single-chip microcomputer phase
Connect and be its power supply.
A kind of 10. new wide range capacitor type wave-height sensing device according to claim 9, it is characterised in that：It is described monostable
The core component of state trigger is 555 timers, and the single-chip microcomputer is 51 single-chip microcomputers, and the power module uses model
LM7805 voltage stabilizing chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720504965.3U CN207066338U (en) | 2017-05-09 | 2017-05-09 | A kind of new wide range capacitor type wave-height sensing device |
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| CN201720504965.3U CN207066338U (en) | 2017-05-09 | 2017-05-09 | A kind of new wide range capacitor type wave-height sensing device |
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| CN207066338U true CN207066338U (en) | 2018-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989662A (en) * | 2017-05-09 | 2017-07-28 | 天津理工大学 | A kind of wide range capacitor type wave-height sensing device |
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- 2017-05-09 CN CN201720504965.3U patent/CN207066338U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989662A (en) * | 2017-05-09 | 2017-07-28 | 天津理工大学 | A kind of wide range capacitor type wave-height sensing device |
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