CN106931871A - A kind of wide range resistor-type wave-height sensing device - Google Patents
A kind of wide range resistor-type wave-height sensing device Download PDFInfo
- Publication number
- CN106931871A CN106931871A CN201710319901.0A CN201710319901A CN106931871A CN 106931871 A CN106931871 A CN 106931871A CN 201710319901 A CN201710319901 A CN 201710319901A CN 106931871 A CN106931871 A CN 106931871A
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- tensioning frame
- tensioning
- sensing device
- steel wire
- wide range
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The present invention relates to a kind of wide range resistor-type wave-height sensing device, including upper tensioning frame and lower tensioning frame, two resistance electrodes being parallel to each other are fixedly connected between tensioning frame and lower tensioning frame on described, two resistance electrodes being parallel to each other are connected with detection circuit；Its technical characterstic is：Described two resistance electrodes being parallel to each other are made up of an overall steel wire rope, and on lower tensioning frame, the two ends hinge of the overall steel wire rope is on upper tensioning frame for the middle part hinge of the overall steel wire rope.The present invention ensure that the linearity and the depth of parallelism of two resistance electrodes of wave-height sensing device, and measurement range is up to 8 10m.
Description
Technical field
The invention belongs to harbour and offshore engineering physical model experiment studying technological domain, it is related to for real-time detection wave
The wave-height sensing device of height and height of water level, especially a kind of wide range resistor-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 technique, to make and need to use wave-height sensing device real-time detection wave height in wave process.
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, ultrasonic wave, sharp so pressure, float-type metering system just cannot be used, and because liquid level very out-of-flatness
The modes such as light, radar cannot all be used, therefore, wave height measurement only may be selected resistance or resistance measurement mode.
At present, it is general to use small-range resistor-type wave-height sensing device, the small-range resistor-type to pass when wave height measurement is carried out
Wave height sensor is made up of the two poles of the earth of resistance two stainless steel tubes, but experiment shows, only when range is smaller (range is less than 2m),
The depth of parallelism and the every linearity of steel pipe between two steel pipes can be ensured, so that it is guaranteed that certainty of measurement.But when range compared with
When big (range is more than 2m), or even measurement occasion of the range more than 8m, if still using above-mentioned resistor-type wave-height sensing device structure,
The depth of parallelism and the every linearity of steel pipe between so two steel pipes cannot all ensure, and the depth of parallelism and straight between two steel pipes
Dimension directly affects the linearity of wave-height sensing device, so as to influence certainty of measurement, produce causes measurement essence because range becomes big
The low problem of degree.
By retrieval, a patent document related to present patent application is found：
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 within the upper springlock silk, and the upper springlock silk is connected with the collection bobbin, and the other end of the spring is enclosed within 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 capacitive sensing silk is in the line concentration
On axle converge 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.Can there is electromagnetic interference and voltage during can solve the problem that transmission signal over long distances in the present invention
The situation of loss is so as to influence the problem of acquisition precision.
By the contrast of technical characteristic, patent document disclosed above has larger difference with present patent application.
Therefore, in greatly than chi hydraulic test, how to find a high accuracy wave height being applied in the case of wide range and pass
Sensor, as the technical barrier that those skilled in the art are faced.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of reasonable in design, simple structure, certainty of measurement
Wide range resistor-type wave-height sensing device high.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of wide range resistor-type wave-height sensing device, including upper tensioning frame and lower tensioning frame, on described tensioning frame and under
Two resistance electrodes being parallel to each other, two resistance electrodes being parallel to each other and detection circuit phase are fixedly connected between tensioning frame
Connection；Described two resistance electrodes being parallel to each other are made up of an overall steel wire rope, and the middle part hinge of the overall steel wire rope is mounted in
On lower tensioning frame, the two ends hinge of the overall steel wire rope is on upper tensioning frame.
And, a side end face and bottom surface of the upper tensioning frame are uncovered structure, and tensioning frame top is formed with for wearing on this
The through hole of tensioning bolt is filled, the tensioning bolt is through the through hole and the upper tensioning block spiral shell being placed in the inwall of upper tensioning frame both sides
Line is connected；It is symmetrical in tensioning block on this to be embedded with two upper collets；The overall steel wire rope middle part bypasses and is arranged on down
The groove of the lower tensioning wheel on tensioning frame, the two ends of the overall steel wire rope are arranged on one with described two upper collets respectively
Rise.
And, two resistance electrodes being parallel to each other are installed in the groove on two upper collets respectively, and this two
The resistance electrode that bar is parallel to each other is fixed on corresponding upper collets on through the groove and by snap ring.
And, 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 wheel is formed with, the lower tensioning wheel is connected with the rotating shaft on lower tensioning frame using axis hole, this lower
Bearing up pulley is adopted and is made from an insulative material, and nut and pad for locking lower tensioning wheel are coaxially installed with the rotating shaft of its front end.
And, the upper tensioning frame and lower tensioning frame are packed on tank or pool wall by four tube expansions respectively.
And, the detection circuit includes：Oscillator, a V/A modular converters, multiplier, filtration module, amplification module
With the 2nd V/A modular converters；An input of the oscillator output end respectively with a V/A modular converters and multiplier is connected
Connect, the output end of a V/A modular converters is connected by resistance electrode with another input of multiplier, for that will shake
Swing device output sawtooth voltage signal be converted to constant current signal after exported to multiplier by resistance electrode；The multiplier
Output end is connected with filtration module and amplification module successively, for the voltage signal that oscillator and resistance electrode are exported to be carried out
Be filtered by filtration module and amplification module after synthesis, enhanced processing；The output end of the amplification module turns with the 2nd V/A
Mold changing block is connected, and for that will filter, the voltage signal after enhanced processing will be converted to current signal；The 2nd V/A moduluss of conversion
The output end of block is connected with host computer, for the V/A modular converters of remote capture the 2nd output current signal and upper
Processed and displayed in machine.
Advantages and positive effects of the present invention are：
1st, the present invention can be used for the wave height that Real-time Collection is widely varied, when tensioning bolt on the upper tensioning frame of rotation
When, upper tensioning block is moved up therewith, so that the two ends of the overall steel wire rope in upper collets are tightened up, even if
In the case that measurement range is larger, it is also possible to ensure the linearity and the depth of parallelism of two resistance electrodes of wave-height sensing device, and then
Ensure that the certainty of measurement of wide range wave-height sensing device；And, during upper tensioning block moves up taut wire, if
When the inconsistent situation of the rate of tension of two resistance electrodes of tensioning wheel both sides occurs under occurring, can be by the freedom of lower tensioning wheel
Rotation, the linearity and the depth of parallelism of two resistance electrodes of adjust automatically have further ensured that the survey of wide range wave-height sensing device
Accuracy of measurement, test of many times proves that the measurement range of wide range resistor-type wave-height sensing device of the invention is up to 8-10m.
2nd, two resistance electrodes being parallel to each other of the invention are (i.e.：The two ends of overall steel wire rope) it is installed on collets
Groove in, through the groove and being fixed on corresponding upper collets by snap ring, snap ring is used to lock resistance for its upper end
Electrode is (i.e.：The two ends of overall steel wire rope) preventing its corresponding upper collets of abjection.
3rd, the nut and pad for locking lower tensioning wheel are coaxially installed with the rotating shaft of lower tensioning wheel front end of the invention,
So as to prevent lower tensioning wheel in rotation process, come off from the rotating shaft of lower tensioning frame.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is detection circuit block diagram of the invention；
Fig. 4 is the connection diagram of current source and resistance electrode.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with accompanying drawing：
A kind of wide range resistor-type wave-height sensing device, as depicted in figs. 1 and 2, including is packed on flume wall or large-scale pushes away
The upper tensioning frame 1 of ripple plate and lower tensioning frame 5, being fixedly connected with two between tensioning frame and lower tensioning frame on described is parallel to each other
Resistance electrode, two resistance electrodes being parallel to each other with detection circuit be connected；Described two resistance electrodes being parallel to each other
It is made up of an overall steel wire rope, the middle part hinge of the overall steel wire rope on lower tensioning frame, cut with scissors by the two ends of the overall steel wire rope
On upper tensioning frame.
One side end face and bottom surface of the upper tensioning frame are uncovered structure, and tensioning frame top is formed with for installing tensioning spiral shell
The through hole of bolt 2, the tensioning bolt connects through the through hole and the screw thread of upper tensioning block 9 being placed in the inwall of upper tensioning frame both sides
Connect, when tensioning bolt is rotated, the upper tensioning block can be moved up along the upper tensioning frame both sides inwall；On this in tensioning block
It is symmetrical to be embedded with two upper collets 11；Two resistance electrodes being parallel to each other are made up of an overall steel wire rope 4,
The groove of the lower tensioning wheel 8 on lower tensioning frame, the two of the overall steel wire rope are bypassed in the middle part of the overall steel wire rope
End is installed together with described two upper collets respectively, when the upper tensioning block is moved up, bypasses the two of lower tensioning wheel
The individual resistance electrode (two ends of overall steel wire rope) being parallel to each other is tightened up, and the two ends of steel wire can ensure lower tensioning when being tightened up
The steel wire for taking turns both sides is parallel to each other.
In the present embodiment, two resistance electrodes being parallel to each other (two ends of overall steel wire rope) are installed on two respectively
In groove on individual upper collets, the two ends of the overall steel wire rope are fixed on corresponding on through the groove and by snap ring 10
On collets, the snap ring is used for locking steel wire in case anti-avulsion goes out upper collets.
In the present embodiment, the lower tensioning frame 5 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 wheel, and the lower tensioning wheel is used with the rotating shaft on lower tensioning frame
Axis hole is connected, and the lower tensioning wheel is adopted and is made from an insulative material, is coaxially installed with the rotating shaft of its front end for locking lower tensioning wheel
Nut 6 and pad 7, so as to prevent lower tensioning wheel during left-right rotation, come off from the rotating shaft of lower tensioning frame.
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, it is described detection circuit as shown in figure 3, including oscillator, a V/A modular converters, multiplier,
Filtration module, amplification module and the 2nd V/A modular converters；
An input of the oscillator output end respectively with a V/A modular converters and multiplier is connected, and described
The output end of one V/A modular converters is connected by resistance electrode with another input of multiplier, for oscillator to be exported
Sawtooth voltage signal be converted to constant current signal after exported to multiplier by resistance electrode；The output end of the multiplier according to
It is secondary to be connected with filtration module and amplification module, for the voltage signal that oscillator and resistance electrode are exported to be synthesized after lead to
Cross filtration module and amplification module be filtered, enhanced processing；The output end of the amplification module and the 2nd V/A modular converter phases
Connection, for that will filter, the voltage signal after enhanced processing will be converted to current signal；The output of the 2nd V/A modular converters
End is connected by communication cable with the capture card of upper pusher side, for the electricity of the V/A modular converters of remote capture the 2nd output
Stream signal is simultaneously processed and displayed in host computer.
Effect to each module in detection circuit separately below is described in detail：
(1) oscillator
Because water can produce polarization when being powered, resistance value is caused persistently to change, influence measurement.Therefore, vibration is used
Device export a sawtooth waveforms, as measurement power supply, to eliminate the influence of water polarization.
(2) the first V/A modular converters
Voltage source is changed into current source, is easy to detection, a current waveform is exported after conversion.
(3) resistance electrode
As shown in figure 4, it is current source to be added on resistance electrode, therefore the magnitude of voltage of resistance electrode output is only electric with resistance
The resistance value of pole is relevant, then resistance electrode output voltage waveforms.
(4) multiplier
Oscillator and resistance electrode are respectively exported to multiplier voltage waveform, by multiplier by oscillator and resistance electrode
The voltage signal of output is synthesized, after multiplying, the voltage waveform after exporting change.
(5) filtering, amplification module
In fact, the voltage waveform (square wave) is impossible to be fairly regular, will not all be " right angle ", therefore, pass through
Voltage oscillogram after filtering process after exporting change, and the voltage signal is amplified treatment.
(6) the 2nd V/A modular converters
For the voltage signal after amplification to be changed into current signal, done beneficial to long-distance transmissions, and the anti-of electric current transmission
Disturb ability strong.
Operation principle of the invention is：
Steel wire is bypassed the groove of lower tensioning wheel first, and the two ends of steel wire is each passed through recessed on two upper collets
After groove, two snap ring clampings are used.After steel wire installation, then by the tensioning bolt that turns clockwise, upper tensioning block is in spiral shell
Moved up in the presence of line, so that the two ends of taut wire, and lower tensioning wheel can be around lower tensioning during taut wire
Rotating shaft on frame is rotated freely so that two steel wires of rotating shaft both sides are stretched and keeping parallelism.
When making ripple experiment, lower tensioning frame and part steel wire are placed in waterline below 12, the resistance value of steel wire is with steel wire
The change of the depth in immersion water and linear change.
It is emphasized that embodiment of the present invention is illustrative, rather than limited, therefore present invention bag
The embodiment for being not limited to described in specific embodiment is included, it is every by those skilled in the art's technology according to the present invention scheme
The other embodiment for drawing, also belongs to the scope of protection of the invention.
Claims (6)
1. a kind of wide range resistor-type wave-height sensing device, including upper tensioning frame and lower tensioning frame, tensioning frame and lower on described
Two resistance electrodes being parallel to each other are fixedly connected between tight frame, two resistance electrodes being parallel to each other are connected with detection circuit
Connect；It is characterized in that：Described two resistance electrodes being parallel to each other are made up of an overall steel wire rope, in the overall steel wire rope
On lower tensioning frame, the two ends hinge of the overall steel wire rope is on upper tensioning frame for portion's hinge.
2. a kind of wide range resistor-type wave-height sensing device according to claim 1, it is characterised in that：The upper tensioning frame
One side end face and bottom surface are uncovered structure, and tensioning frame top is formed with the through hole for installing tensioning bolt, the tensioning bolt on this
It is threadedly coupled through the through hole with the upper tensioning block being placed in the inwall of upper tensioning frame both sides；It is symmetrical in tensioning block on this
It is embedded with two upper collets；The overall steel wire rope middle part bypasses the groove of the lower tensioning wheel on lower tensioning frame, institute
The two ends for stating overall steel wire rope are installed together with described two upper collets respectively.
3. a kind of wide range resistor-type wave-height sensing device according to claim 2, it is characterised in that：Described two mutually flat
Capable resistance electrode is installed in the groove on two upper collets respectively, and two resistance electrodes being parallel to each other are described in
Groove is simultaneously fixed on corresponding upper collets by snap ring.
4. a kind of wide range resistor-type wave-height sensing device according to claim 1 and 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 wheel
Line, the lower tensioning wheel is connected with the rotating shaft on lower tensioning frame using axis hole, and the lower tensioning wheel is adopted and is made from an insulative material, before it
The nut and pad for locking lower tensioning wheel are coaxially installed with the rotating shaft at end.
5. a kind of wide range resistor-type wave-height sensing device according to claim 1 and 2, it is characterised in that：The upper tensioning
Frame and lower tensioning frame are packed on tank or pool wall by four tube expansions respectively.
6. a kind of wide range resistor-type wave-height sensing device according to claim 1 and 2, it is characterised in that：The detection electricity
Road includes：Oscillator, a V/A modular converters, multiplier, filtration module, amplification module and the 2nd V/A modular converters；It is described
An input of the oscillator output end respectively with a V/A modular converters and multiplier is connected, a V/A modular converters
Output end be connected with another input of multiplier by resistance electrode, for oscillator is exported sawtooth voltage letter
Exported to multiplier by resistance electrode after number being converted to constant current signal；The output end of the multiplier successively with filtration module and
Amplification module is connected, for the voltage signal that oscillator and resistance electrode are exported to be synthesized after by filtration module and put
Big module is filtered, enhanced processing；The output end of the amplification module is connected with the 2nd V/A modular converters, for that will filter
Voltage signal after ripple, enhanced processing is converted to current signal；The output end of the 2nd V/A modular converters is connected with host computer
Connect, the current signal for the output of the V/A modular converters of remote capture the 2nd is simultaneously processed and displayed in host computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319901.0A CN106931871B (en) | 2017-05-09 | 2017-05-09 | Wide-range resistance type wave height sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319901.0A CN106931871B (en) | 2017-05-09 | 2017-05-09 | Wide-range resistance type wave height sensor |
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| Publication Number | Publication Date |
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| CN106931871A true CN106931871A (en) | 2017-07-07 |
| CN106931871B CN106931871B (en) | 2023-05-16 |
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| CN106931871B (en) | 2023-05-16 |
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