CN102401676A - Measurement converting device - Google Patents
Measurement converting device Download PDFInfo
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- CN102401676A CN102401676A CN2010102843850A CN201010284385A CN102401676A CN 102401676 A CN102401676 A CN 102401676A CN 2010102843850 A CN2010102843850 A CN 2010102843850A CN 201010284385 A CN201010284385 A CN 201010284385A CN 102401676 A CN102401676 A CN 102401676A
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Abstract
The invention relates to a measurement converting device, which comprises a device body. A detection capacitor assembly is arranged in the device body; the output end of the detection capacitor assembly is connected with the input end of a detection oscillation module; the output end of the detection oscillation module is connected with the input end of an amplification assembly; the output end of the reference capacitor assembly is connected with the input end of a voltage/current conversion module; and the device is characterized by also comprising a reference capacitor assembly, wherein the output end of the reference capacitor assembly is connected with the input end of a reference oscillation module. Meanwhile, the output end of the reference oscillation module and the output end of the detection oscillation module are connected with the input end of a comparison module; the output end of the comparison module is connected with the amplification module; and the output end of the voltage/current conversion module is connected with a programmable control module. Therefore, measured data can be acquired and compared in real time through the matching of the reference oscillation module and the detection oscilation module, the reference capacitor assembly cannot be changed with measured substances, and the measuring accuracy is improved.
Description
Technical field
The present invention relates to a kind of conversion equipment, relate in particular to a kind of measurement conversion equipment.
Background technology
Being usually used in level gauging is to measure liquid and the liquid level of powder shape material and the industrial automation instrument of loading height in respect of level measurement instrument.Measure solid material piling heights such as bulk, graininess and powder, or the instrument of surface location is called level-sensing device; Two kinds of instrument of not dissolving liquid or solid and liquid phase interface location mutually are called the phase interface meter in the measuring vessel.
The kind of level measurement instrument is a lot, and commonly used have direct-reading liquid level gauge, differential pressure type level meter, floating type liquid level meter, capacitance object position instrument, sound wave type level meter and a nuclear radiation level meter.In addition, also have level measurement instruments such as electric contact formula, turnover plate type and mechanical impeller detection type.
The direct-reading liquid level gauge is that glass tube of indicating liquid level to use or special glass plate are connected to tested container, and according to connecting pipe principle, the scale on glass tube or glass plate is read the height of liquid level.The direct-reading liquid level gauge is simple in structure, directly perceived, but reading on the spot, can not teletransmission.
The differential pressure type level meter is that the severe of supposition material is steady state value, and the height that liquid in containers or solid material are piled up is directly proportional at the pressure that certain test point produced with it, thereby the method for available pressure measurement is come the measurement object position.Gaging pressure available pressure table, pressure transducer and pressure unit etc.
But existing measurement conversion equipment lacks the detection and the comparison procedure of data, and the degree of accuracy that is converted to is not high.
Summary of the invention
The objective of the invention is to overcome the above problem that prior art exists, a kind of measurement conversion equipment is provided.
For realizing a kind of measurement conversion equipment of the object of the invention; Include device body; In device body, be provided with the detection capacitance component, the output terminal of said detection capacitance component is connected with the input end that detects oscillation module, and the output terminal of said detection oscillation module connects the input end of amplifier module; The output terminal of said amplifier module is connected into the input end of voltage/current modular converter; Wherein: also include the reference capacitance assembly, the output terminal of said reference capacitance assembly is connected into the input end of reference oscillation module, and the output terminal of the output terminal of said reference oscillation module and detection oscillation module is connected into the input end of comparison module; The output terminal of said comparison module is connected into amplifier module; The output terminal of said voltage/current modular converter is connected with programmable control module.
Further, above-mentioned a kind of measurement conversion equipment wherein, is provided with the constant current output module between said voltage/current modular converter and the programmable control module.
Further, above-mentioned a kind of measurement conversion equipment, wherein, the input end of the input end of said detection capacitance component, reference capacitance assembly and the output terminal of programmable control module are equipped with data transmission joint.
Adopt technical scheme of the present invention, can the very first time measurement data be gathered and compare cooperating of oscillation module with detection, and the reference capacitance assembly can not improve the levels of precision of measuring along with the material that will measure changes through the reference oscillation module.
The object of the invention, advantage and characteristics will illustrate through the non-limitative illustration of following preferential embodiment and explain that these embodiment only provide with reference to accompanying drawing as an example.
Description of drawings
Fig. 1 is the organigram of this measurement conversion equipment.
The implication of each Reference numeral is following among the figure:
1 device body 2 detects capacitance component
3 detect oscillation module 4 amplifier modules
5 voltage/current modular converters, 6 reference capacitance assemblies
7 reference oscillation modules, 8 comparison modules
9 programmable control modules, 10 constant current output modules
11 data transmission joints
Embodiment
A kind of measurement conversion equipment as shown in Figure 1; Include device body 1; In device body 1, be provided with and detect capacitance component 2; Be connected with the input end that detects oscillation module 3 at the output terminal that detects capacitance component 2, this output terminal that detects oscillation module 3 connects the input end of amplifier module 4, and the output terminal of amplifier module 4 is connected into the input end of voltage/current modular converter 5; Its unusual part is: also include reference capacitance assembly 6, the output terminal of this reference capacitance assembly 6 is connected into the input end of reference oscillation module 7.Simultaneously, the output terminal of the output terminal of reference oscillation module 7 and detection oscillation module 3 is connected into the input end of comparison module 8; The output terminal of said comparison module 8 is connected into amplifier module 4; The output terminal of said voltage/current modular converter 5 is connected with programmable control module 9.
In conjunction with the present invention's one preferred implementation,, between said voltage/current modular converter 5 and programmable control module 9, be provided with constant current output module 10 for the ease of result's stable output.And, consider the convenience of data transmission, to be equipped with data transmission joint 11 at the input end of said detection capacitance component 2, the input end of reference capacitance assembly 6 and the output terminal of programmable control module 9.
In conjunction with reality of the present invention firmly with situation; Before measuring certain material; Reference capacitance assembly 6 can be along with the material that will measure changes; Reference capacitance assembly 6 remains original definite value, and reference capacitance assembly 6 has the electric current that exchanges character through the frequency signal that reference oscillation module 7 changes it by it.
Then, when having material in tested graduated cylinder, detect the size that capacitance component 2 will be judged electric current according to the depth of its insertion, change the electric current that frequency signal obtains exchanging character through detecting oscillation module 3 again.Specifically; Reference oscillation module 7 processed current compare through comparison module 8 with detection oscillation module 3 processed current; Owing to do not have too big variation during the electric current of reference capacitance assembly 6 process reference oscillation module 7, and the molar piece that detection capacitance component 2 detects is along with the material that will detect is changing.At this moment, detecting capacitance component 2 will increase current value and also can increase through the oscillation module conversion.The size that they come fiducial value through comparison module 8; Because the value of reference capacitance assembly 6 is always smaller or equal to the value that detects capacitance component 2; Comparison module 8 can come big value taking-up and output through handling; Generally will amplify this little value with amplifier module 4 because the value of output is less than normal, can observe with the appearance module like this, amplifier module 4 converts the d. c. voltage signal of amplifier module 4 outputs to DC current through voltage/current modular converter 5; DC current is through the current value of constant flow module output constant current, and whether constant flow module links to each other with programmable control module 9 and observe which water level of molar piece and exceed still to hang down excessively and report to the police.
Further, the present invention can let warning system realize low the warning according to reference capacitance assembly 6 and detection capacitance component 2.Reference capacitance assembly 6 compares with reference to fixed value and detection capacitance component 2 as one; Programmable control module 9 has been finished and has been crossed when hanging down and the comparison of reference capacitance assembly 6 before relatively; What are also having can report to the police with reference capacitance assembly 6; Also having how many water level protections to report to the police with reference capacitance assembly 6, also having minimum water-level alarm of how many times with reference capacitance assembly 6, low-water level report to the police all with reference capacitance assembly 6 with detect capacitance component 2 relatively realize report to the police.And the warning of high water stage to be exactly root tool technician oneself set which section water level high to report to the police, at which water level to report to the police at the water level of protection, which will be reported to the police at peak level, all it doesn't matter with reference capacitance assembly 6.
Through above-mentioned character express and combine accompanying drawing to find out; After adopting the present invention; Can the very first time measurement data be gathered and compare cooperating of oscillation module with detection through the reference oscillation module; And the reference capacitance assembly can not improve the levels of precision of measuring along with the material that will measure changes.
Certainly, more than only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.Except that the foregoing description, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.
Claims (3)
1. measurement conversion equipment; Include device body; In device body, be provided with the detection capacitance component, the output terminal of said detection capacitance component is connected with the input end that detects oscillation module, and the output terminal of said detection oscillation module connects the input end of amplifier module; The output terminal of said amplifier module is connected into the input end of voltage/current modular converter; It is characterized in that: also include the reference capacitance assembly, the output terminal of said reference capacitance assembly is connected into the input end of reference oscillation module, and the output terminal of the output terminal of said reference oscillation module and detection oscillation module is connected into the input end of comparison module; The output terminal of said comparison module is connected into amplifier module; The output terminal of said voltage/current modular converter is connected with programmable control module.
2. a kind of measurement conversion equipment according to claim 1 is characterized in that: be provided with the constant current output module between said voltage/current modular converter and the programmable control module.
3. a kind of measurement conversion equipment according to claim 1 is characterized in that: the input end of the input end of said detection capacitance component, reference capacitance assembly and the output terminal of programmable control module are equipped with data transmission joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102843850A CN102401676A (en) | 2010-09-16 | 2010-09-16 | Measurement converting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102843850A CN102401676A (en) | 2010-09-16 | 2010-09-16 | Measurement converting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401676A true CN102401676A (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102843850A Pending CN102401676A (en) | 2010-09-16 | 2010-09-16 | Measurement converting device |
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| CN (1) | CN102401676A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076597A (en) * | 2014-05-30 | 2017-08-18 | 埃尔特克有限公司 | For the sensor for the height for detecting medium |
| CN107110690A (en) * | 2014-09-15 | 2017-08-29 | 埃尔特克有限公司 | For the sensor for the level for detecting medium |
| CN107110691A (en) * | 2014-09-15 | 2017-08-29 | 埃尔特克有限公司 | For the sensor for the level for detecting medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041808U (en) * | 1988-11-30 | 1989-07-26 | 陈汉达 | Charge level incicator |
| CN2762082Y (en) * | 2004-09-06 | 2006-03-01 | 潘春明 | Elctric capacity type powder material detection instrument |
| CN201237520Y (en) * | 2008-06-20 | 2009-05-13 | 长春迪瑞实业有限公司 | Level detector |
| CN201837431U (en) * | 2010-09-16 | 2011-05-18 | 苏州工业园区天驰自控仪表有限公司 | Measurement conversion device |
-
2010
- 2010-09-16 CN CN2010102843850A patent/CN102401676A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041808U (en) * | 1988-11-30 | 1989-07-26 | 陈汉达 | Charge level incicator |
| CN2762082Y (en) * | 2004-09-06 | 2006-03-01 | 潘春明 | Elctric capacity type powder material detection instrument |
| CN201237520Y (en) * | 2008-06-20 | 2009-05-13 | 长春迪瑞实业有限公司 | Level detector |
| CN201837431U (en) * | 2010-09-16 | 2011-05-18 | 苏州工业园区天驰自控仪表有限公司 | Measurement conversion device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076597A (en) * | 2014-05-30 | 2017-08-18 | 埃尔特克有限公司 | For the sensor for the height for detecting medium |
| CN107110690A (en) * | 2014-09-15 | 2017-08-29 | 埃尔特克有限公司 | For the sensor for the level for detecting medium |
| CN107110691A (en) * | 2014-09-15 | 2017-08-29 | 埃尔特克有限公司 | For the sensor for the level for detecting medium |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |