CN205449223U - Ultrasonic level -meter of wide range - Google Patents
Ultrasonic level -meter of wide range Download PDFInfo
- Publication number
- CN205449223U CN205449223U CN201620178983.2U CN201620178983U CN205449223U CN 205449223 U CN205449223 U CN 205449223U CN 201620178983 U CN201620178983 U CN 201620178983U CN 205449223 U CN205449223 U CN 205449223U
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- transducer
- probe
- wide range
- ultrasonic
- range
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses an ultrasonic level -meter of wide range, including supersonic generator, transducer, sound impedance transformer, probe, matched filter, supersonic generator connects the bottom the transducer, the transducer bottom is connected matched filter, matched filter connects the bottom sound impedance transformer, sound impedance transformer connects the bottom the probe, this kind of charge level indicator passes through the transducer, with the ultrasonic wave of electric signal transition for our needs, reflect away the ultrasonic wave by the probe, and directive liquid level, through sound impedance transformer, improve the propagation speed of ultrasonic wave in the air dielectric, rethread matched filter, improve the SNR of remote liquid level reflection echo, just so can increase the range of charge level indicator, the range extension that is the range arrives 100m 0, through the time of measuring the good baffle echo of reflectivity ability, it corrects to realize the accurate velocity of sound, thereby realize on the basis of range extension, still can guarantee higher accuracy.
Description
Technical field
This utility model relates to a kind of level-sensing device, is specifically related to the ultrasonic material level detection unit of a kind of wide range.
Background technology
Ultrasonic material level detection unit is that one make use of ultrasound wave good directionality, and penetration capacity is strong, it is easy to obtain the acoustic energy relatively concentrated, the industrial instrumentation for measuring liquid level designed and developed in features such as water transmission distance are remote.Ultrasonic material level detection unit is widely used in every field such as medical science, military affairs, industry, agriculturals.Its operation principle is: during level gauging, ultrasonic signal is sent by ultrasound probe, turns back after liquid or solid material surface is reflected, same probe receive, measure the whole service time of ultrasound wave, thus realize the measurement of thing position.
Liquid level and level gauging are the industrial problems being frequently encountered by, and ultrasonic location technology has many good qualities, and it can not only pinpoint and continuous location, and can easily provide the signal needed for remote measurement or remote control.Compared with radioactivity location technology, ultrasonic technique need not protection, and compared with laser ranging technique, it has again simple and economical advantage, and ultrasonic technique typically need not moving component simultaneously, thus the most more convenient on installing and safeguarding.Ultrasonic material level meter can be widely applied to many industries such as oil, mining industry, power plant, chemical plant, water treatment plant, Sewage Disposal, agricultural water, environment monitoring, food (wine-making industry, beverage industries, additive, edible oil, milk product), flood fighting flood control, hydrologic monitoring, open channel, space orientation.
Ultrasonic material level detection unit is coughed up high liquid level because it can be surveyed accurately and is widely used, but existing ultrasonic material level detection unit measures range little (common range is 0 to 30m), bigger at telemeasurement time error, and degree of accuracy is the most inadequate, so, we, how on the basis of not changing ultrasonic emitting power and receiving gain, increase the range of ultrasonic material level detection unit, and claimed accuracy is higher, this is the problem that we are anxious to be resolved.
Summary of the invention
The technical problems to be solved in the utility model is to overcome existing defect, it is provided that the ultrasonic material level detection unit of a kind of wide range, can effectively solve produced problem in background technology.
In order to solve above-mentioned technical problem, this utility model provides following technical scheme:
The ultrasonic material level detection unit of a kind of wide range of this utility model, including supersonic generator, transducer, acoustic impedance converter, probe, matched filtering device, described transducer is connected bottom described supersonic generator, described matched filtering device is connected bottom described transducer, connect described acoustic impedance converter bottom described matched filtering device, bottom described acoustic impedance converter, connect described probe.
It is provided with baffle plate as preferably a kind of technical scheme of this utility model, hollow at described probe tip, and taper inner.
As preferably a kind of technical scheme of this utility model, described supersonic generator surface is provided with ultrasonic frequency adjusting knob.
As preferably a kind of technical scheme of this utility model, described acoustic impedance converter both sides are equipped with pin, and are symmetrical arranged.
As preferably a kind of technical scheme of this utility model, described baffle plate is the described baffle plate using the material that reflecting properties is good to make, and described baffle plate and described probe tip inwall are welded to connect.
As preferably a kind of technical scheme of this utility model, described pin and described acoustic impedance converter bolt connect.
The beneficial effects of the utility model are: the ultrasonic material level detection unit of this kind of wide range, pass through transducer, convert electrical signals to the ultrasound wave that we need, by probe, ultrasonic reflections is gone out, and directive liquid level, pass through acoustic impedance converter, improve ultrasound wave propagation rate in air dielectric, again by matched filtering device, improve the signal to noise ratio of remote liquid level reflection echo, thus can increase the range of level-sensing device, it is that the expanded range of range is 0 to 100m, by measuring the time of the good baffle plate echo of reflecting properties, realize the accurate velocity of sound to correct, thus realize on the basis of range extension, still ensure that higher accuracy.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, is not intended that restriction of the present utility model together with embodiment of the present utility model.In the accompanying drawings:
Fig. 1 is the ultrasonic material level detection unit structural representation of a kind of wide range described in this utility model embodiment；
In figure: 1, supersonic generator；2, transducer；3, acoustic impedance converter；4, probe；5, matched filtering device；6, baffle plate；7, pin；8, ultrasonic frequency adjusting knob.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains this utility model, be not used to limit this utility model.
Embodiment:
nullAs shown in Figure 1，The ultrasonic material level detection unit of a kind of wide range of this utility model，Including supersonic generator 1、Transducer 2、Acoustic impedance converter 3、Probe 4、Matched filtering device 5，Described transducer 2 is connected bottom described supersonic generator 1，Described matched filtering device 5 is connected bottom described transducer 2，Described acoustic impedance converter 3 is connected bottom described matched filtering device 5，Described probe 4 is connected bottom described acoustic impedance converter 3，By transducer 2，Convert electrical signals to the ultrasound wave that we need，By probe 4, ultrasonic reflections is gone out，And directive liquid level，By acoustic impedance converter 3，Improve ultrasound wave propagation rate in air dielectric，Again by matched filtering device 5，Improve the signal to noise ratio of remote liquid level reflection echo，Thus can increase the range of level-sensing device，It is that the expanded range of range is 0 to 100m，By measuring the time of good baffle plate 6 echo of reflecting properties，Realize the accurate velocity of sound to correct，Thus realize on the basis of range extension，Still ensure that higher accuracy.
Described probe 4 most advanced and sophisticated place hollow, and taper inner is provided with baffle plate 6, it is achieved measure the time of described baffle plate 6 echo, it is achieved the accurate velocity of sound is corrected, thus realization is on the basis of range extension, still ensures that degree of accuracy.
Described supersonic generator 1 surface is provided with ultrasonic frequency adjusting knob 8, is used for regulating the frequency of the signal of telecommunication, thus obtains the ultrasound wave that we need.
Described acoustic impedance converter 3 both sides are equipped with pin 7, and are symmetrical arranged, and described pin 7 and described acoustic impedance converter 3 bolt connect, and are used for fixing ultrasonic material level detection unit, make level-sensing device more firm.
Described baffle plate 6 is the described baffle plate 6 using the material that reflecting properties is good to make, and described baffle plate 6 and the most advanced and sophisticated inwall of described probe 4 are welded to connect, it is ensured that echo can all be reflected back.
Concrete, during use, ultrasound wave can be emitted by described probe 4, and encountering liquid level be, it is reflected back, again received by described probe 4, thereby through the time again reflected, measure liquid level, due to by described acoustic impedance converter 3, improve ultrasound wave propagation rate in air dielectric, and by described matched filtering device 5, improve the signal to noise ratio of remote liquid level reflection echo, thus can increase the range of level-sensing device, it is that the expanded range of range is 0 to 100m, by measuring the time of good described baffle plate 6 echo of reflecting properties, realize the accurate velocity of sound to correct, thus realize on the basis of range extension, still ensure that higher accuracy, meet measurement at a distance, nor the biggest error can be produced.
The ultrasonic material level detection unit of this kind of wide range, cross transducer 2, convert electrical signals to the ultrasound wave that we need, by probe 4, ultrasonic reflections is gone out, and directive liquid level, by acoustic impedance converter 3, improve ultrasound wave propagation rate in air dielectric, again by matched filtering device 5, improve the signal to noise ratio of remote liquid level reflection echo, thus can increase the range of level-sensing device, it is that the expanded range of range is 0 to 100m, by measuring the time of good baffle plate 6 echo of reflecting properties, realize the accurate velocity of sound to correct, thus realize on the basis of range extension, still ensure that higher accuracy.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this utility model, although this utility model being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (6)
1. the ultrasonic material level detection unit of a wide range, including supersonic generator (1), transducer (2), acoustic impedance converter (3), probe (4), matched filtering device (5), it is characterized in that, described supersonic generator (1) bottom connects described transducer (2), described transducer (2) bottom connects described matched filtering device (5), described matched filtering device (5) bottom connects described acoustic impedance converter (3), and described acoustic impedance converter (3) bottom connects described probe (4).
The ultrasonic material level detection unit of a kind of wide range the most according to claim 1, it is characterised in that hollow at described probe (4) is most advanced and sophisticated, and taper inner is provided with baffle plate (6).
The ultrasonic material level detection unit of a kind of wide range the most according to claim 1, it is characterised in that described supersonic generator (1) surface is provided with ultrasonic frequency adjusting knob (8).
The ultrasonic material level detection unit of a kind of wide range the most according to claim 1, it is characterised in that described acoustic impedance converter (3) both sides are equipped with pin (7), and are symmetrical arranged.
The ultrasonic material level detection unit of a kind of wide range the most according to claim 2, it is characterized in that, described baffle plate (6) is the described baffle plate (6) using the material that reflecting properties is good to make, and described baffle plate (6) and the most advanced and sophisticated inwall of described probe (4) are welded to connect.
The ultrasonic material level detection unit of a kind of wide range the most according to claim 4, it is characterised in that described pin (7) and described acoustic impedance converter (3) bolt connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620178983.2U CN205449223U (en) | 2016-03-10 | 2016-03-10 | Ultrasonic level -meter of wide range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620178983.2U CN205449223U (en) | 2016-03-10 | 2016-03-10 | Ultrasonic level -meter of wide range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205449223U true CN205449223U (en) | 2016-08-10 |
Family
ID=56606010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620178983.2U Expired - Fee Related CN205449223U (en) | 2016-03-10 | 2016-03-10 | Ultrasonic level -meter of wide range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205449223U (en) |
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2016
- 2016-03-10 CN CN201620178983.2U patent/CN205449223U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20190310 |