CN107270997A - Fuel-quantity transducer, fuel quantity meas urement system and aircraft - Google Patents
Fuel-quantity transducer, fuel quantity meas urement system and aircraft Download PDFInfo
- Publication number
- CN107270997A CN107270997A CN201710360988.6A CN201710360988A CN107270997A CN 107270997 A CN107270997 A CN 107270997A CN 201710360988 A CN201710360988 A CN 201710360988A CN 107270997 A CN107270997 A CN 107270997A
- Authority
- CN
- China
- Prior art keywords
- fuel
- right angle
- plate
- angle trigonometry
- pole plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01F23/26—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
-
- 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
- G01F23/26—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/268—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention discloses a kind of fuel-quantity transducer, a kind of fuel quantity meas urement system and a kind of aircraft with the fuel-quantity transducer, wherein, the fuel-quantity transducer includes end cap, end cap includes mounting disc and the connection end for being respectively arranged on mounting disc two ends and accommodating end, installation cavity is formed with the connection end, accommodating cavity is formed with the accommodating end；Chip, chip is installed on accommodating cavity；Electrode assemblie, electrode assemblie includes two plate type electrodes being oppositely arranged in parallel, and the plate type electrode is partially accommodated in installation cavity；Two probe assemblies, mounting disc offers at least two through hole connected with installation cavity and accommodating cavity, and one end of each probe assembly is contained in installation cavity and is connected to a plate-type polar plate, and the other end is connected through a through hole with chip；Two seal assemblies, each seal assembly is filled in the gap between a probe assembly and the hole wall of through hole.Technical solution of the present invention can prevent the generation of siphonage so that short circuit or failure phenomenon are less likely to occur chip.
Description
Technical field
The present invention relates to vehicle technology field, more particularly to a kind of fuel-quantity transducer, the oil using the fuel-quantity transducer
The aircraft of system for measuring quantity and the application fuel-quantity transducer.
Background technology
The fuel-quantity transducer that existing aircraft is used is generally capacitance type sensor, and the capacitance type sensor generally includes end
Lid, the end cap lower end is connection end, is provided with capacitance tube, and the end cap upper end is accommodating end, is provided with chip.
Capacitance type sensor is generally that oblique cutting is vertical to be installed on fuel tank internal, needs to set detection component at the end cap,
Fit clearance can be produced at detection component by setting, be also easy to produce at this water contained in siphonage, aviation kerosine will be shifted up into
Enter to the accommodating end of end cap so that short circuit or failure phenomenon easily occur for chip.
The content of the invention
The main object of the present invention is to provide a kind of fuel-quantity transducer, it is intended to prevent the generation of siphonage.
To achieve the above object, fuel-quantity transducer proposed by the present invention, including：
End cap, the end cap includes mounting disc and the connection end for being respectively arranged on the mounting disc two ends and accommodating end, should
Installation cavity is formed with connection end, accommodating cavity is formed with the accommodating end；
Chip, the chip is installed on the accommodating cavity；
Electrode assemblie, the electrode assemblie includes two plate type electrodes being oppositely arranged in parallel, and the plate type electrode part is accommodated
In the installation cavity；
Two probe assemblies, the mounting disc offers at least two through hole connected with the installation cavity and accommodating cavity, each
One end of the probe assembly is contained in the installation cavity and is connected to plate-type polar plate described in one, and the other end passes through through hole described in one
It is connected with the chip；
Two seal assemblies, each seal assembly is filled in the gap between a probe assembly and the hole wall of through hole.
Preferably, the two-plate electrode includes 2 first right angle trigonometry pole plates and 2 second right angle trigonometry pole plates, described
First right angle trigonometry pole plate is identical with the structure of the second right angle trigonometry pole plate, and the first right angle trigonometry pole plate described in two is mutually put down
Row and just to setting, constitutes the first capacitor, the second right angle trigonometry pole plate described in two is parallel to each other and just to setting, composition the
Two capacitors, wherein, one first right angle trigonometry pole plate of the first capacitor and one second right angle trigonometry pole plate of the second capacitor
Hypotenuse it is parallel and be oppositely arranged, corresponding right-angle side is parallel and is oppositely arranged, another first right angle of the first capacitor
The hypotenuse of another second right angle trigonometry pole plate of triangle pole plate and the second capacitor is parallel and is oppositely arranged, corresponding right angle
Side is parallel and is oppositely arranged.
Preferably, each probe assembly includes two probes, and each seal assembly includes two seals, the peace
Sabot offers four through holes, and one end of probe described in four is contained in the installation cavity and is connected to 2 first right angles
Triangle pole plate and 2 second right angle trigonometry pole plates, the other end are connected through corresponding through hole with the chip.
Preferably, each first right angle trigonometry pole plate and each second right angle trigonometry pole plate are surface covering
There is the sheet metal of insulating barrier.
Preferably, the electrode assemblie also include first line plate and the second wiring board, one first right angle trigonometry pole plate and
One second right angle trigonometry pole plate is located at the first line plate towards the surface of second wiring board, another first right angle
Triangle pole plate and another second right angle trigonometry pole plate are located at second wiring board towards the surface of the first line plate.
Preferably, the fuel-quantity transducer also includes the outer tube body for being sheathed on the electrode assemblie, described outer tube body one end
The installation cavity is installed on, the mounting disc is provided with one first mounting groove and one second mounting groove, and the bottom wall of the outer tube body is set
There are the 3rd mounting groove and the 4th mounting groove, the two ends of the first line plate are respectively accommodated in the first mounting groove and the 3rd described in one
Mounting groove, the two ends of second wiring board are respectively accommodated in second mounting groove and the 4th mounting groove.
Preferably, the end cap offers air admission hole close to one end of the outer tube body, and the outer tube body is away from the end
One end of lid offers fuel feed hole, and the outer tube body is formed with cavity, the air inlet and the fuel feed hole with the cavity
Connection.
Preferably, the mounting disc is convexly equipped with two mounting posts towards the surface of the chip, and the chip is installed on the peace
Fill post.
The present invention also proposes a kind of fuel quantity meas urement system, including fuel tank, and fuel-quantity transducer, and the fuel-quantity transducer is located at
In the fuel tank, the fuel-quantity transducer includes the data acquisition module and signal processing module of communication connection.Wherein, the oil mass
Sensor includes：
End cap, the end cap includes mounting disc and the connection end for being respectively arranged on the mounting disc two ends and accommodating end, should
Installation cavity is formed with connection end, accommodating cavity is formed with the accommodating end；
Chip, the chip is installed on the accommodating cavity；
Electrode assemblie, the electrode assemblie includes two plate type electrodes being oppositely arranged in parallel, and the plate type electrode part is accommodated
In the installation cavity；
Two probe assemblies, the mounting disc offers at least two through hole connected with the installation cavity and accommodating cavity, each
One end of the probe assembly is contained in the installation cavity and is connected to plate-type polar plate described in one, and the other end passes through through hole described in one
It is connected with the chip；
Two seal assemblies, each seal assembly is filled in the gap between a probe assembly and the hole wall of through hole.
The present invention also proposes a kind of aircraft, including fuel tank shell and fuel-quantity transducer, and the fuel-quantity transducer is installed on
The fuel tank shell, wherein, the fuel-quantity transducer includes：
End cap, the end cap includes mounting disc and the connection end for being respectively arranged on the mounting disc two ends and accommodating end, should
Installation cavity is formed with connection end, accommodating cavity is formed with the accommodating end；
Chip, the chip is installed on the accommodating cavity；
Electrode assemblie, the electrode assemblie includes two plate type electrodes being oppositely arranged in parallel, and the plate type electrode part is accommodated
In the installation cavity；
Two probe assemblies, the mounting disc offers at least two through hole connected with the installation cavity and accommodating cavity, each
One end of the probe assembly is contained in the installation cavity and is connected to plate-type polar plate described in one, and the other end passes through through hole described in one
It is connected with the chip；
Two seal assemblies, each seal assembly is filled in the gap between a probe assembly and the hole wall of through hole.
Technical solution of the present invention using two parallel plate type electrodes by electrode assemblie by comparing existing hollow edged electrode less
Larger pressure difference is easily produced, the generation of siphonage is reduced, and by setting probe to connect chip and electrode assemblie, and
Gap between the probe and the first through hole is blocked by seal, to reach the generation for preventing siphonage.
Specifically, chip is transferred to by designing probe by the capacitance signal of electrode assemblie, to carry out injecting glue close due to probe
The effect of envelope is good, thus by the first through hole provided with first seal to seal between probe and first through hole between
Gap；The short of its chip is caused to prevent generation siphonage to cause moisture to move to signal adapter along on probe by gap
Road or failure.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the structural representation of the embodiment of fuel-quantity transducer one of the present invention；
Fig. 2 is the explosive view of fuel-quantity transducer shown in Fig. 1；
Fig. 3 is the sectional view of the embodiment of fuel-quantity transducer one of the present invention；
The end cap of Fig. 4 embodiments of fuel-quantity transducer one of the present invention and the mounting structure schematic diagram of electrode assemblie；
Fig. 5 is the structural representation of the first right angle trigonometry pole plate, the second right angle trigonometry pole plate and first line plate in Fig. 2；
Fig. 6 is the enlarged drawing at A in Fig. 5；
Fig. 7 is the measuring principle schematic diagram of fuel-quantity transducer of the present invention.
Drawing reference numeral explanation：
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
In addition, the technical scheme between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, when the combination appearance of technical scheme is conflicting or can not realize it will be understood that this technical side
The combination of case is not present, also not within the protection domain of application claims.
Referring to figs. 1 to 7, the present invention proposes a kind of fuel-quantity transducer 100, referring in particular to Fig. 3, the fuel-quantity transducer 100
Including end cap 30, the end cap 30 includes mounting disc 34 and the connection end 33 for being respectively arranged on the two ends of mounting disc 34 and accommodating
Installation cavity is formed with end 32, the connection end 33, accommodating cavity is formed with the accommodating end 32；
Chip 50, the chip 50 is installed on the accommodating cavity；
Electrode assemblie 10, the electrode assemblie 10 includes two plate type electrodes being oppositely arranged in parallel, the plate type electrode part
It is contained in the installation cavity；
Two probe assemblies 40, the mounting disc 34 offers at least two through hole connected with the installation cavity and accommodating cavity,
One end of each probe assembly 40 is contained in the installation cavity and is connected to plate-type polar plate described in one, and the other end passes through an institute
Through hole is stated to be connected with the chip 50；
Two seal assemblies, each seal assembly is filled in the gap between a probe assembly 40 and the hole wall of through hole.
Technical solution of the present invention using two parallel plate type electrodes by electrode assemblie by comparing existing hollow edged electrode less
Larger pressure difference is easily produced, the generation of siphonage is reduced, and by setting probe to connect chip and electrode assemblie, and
Gap between the probe and the first through hole is blocked by seal, to reach the generation for preventing siphonage.
Specifically, chip is transferred to by designing probe by the capacitance signal of electrode assemblie, to carry out injecting glue close due to probe
The effect of envelope is good, therefore by being sealed in the first through hole provided with seal assembly between probe and the hole wall of first through hole
Gap；Its chip is caused to prevent generation siphonage to cause moisture to move to signal adapter along on probe by gap
Short circuit or failure.
In the present embodiment, the two-plate electrode includes 2 first right angle trigonometry pole plates 11 and 2 second right angle trigonometry poles
Plate 12, the first right angle trigonometry pole plate 11 is identical with the structure of the second right angle trigonometry pole plate 12, the first right angle described in two
Triangle pole plate 11 is parallel to each other and just to setting, constitutes the first capacitor, and second right angle trigonometry pole plate 12 is mutually flat described in two
Go and just to setting, constitute the second capacitor, wherein, one first right angle trigonometry pole plate 11 of the first capacitor and the second electric capacity
The hypotenuse of one second right angle trigonometry pole plate 12 of device is parallel and is oppositely arranged, and corresponding right-angle side is parallel and is oppositely arranged, and first
Another second right angle trigonometry pole plate 12 of another first right angle trigonometry pole plate 11 and the second capacitor of capacitor
Hypotenuse is parallel and is oppositely arranged, and corresponding right-angle side is parallel and is oppositely arranged.
The fuel-quantity transducer 100 when in use, perpendicular to pasta, and is immersed in fuel oil, and fuel oil is by fuel-quantity transducer 100
Bottom enters the inside of fuel-quantity transducer 100, while air is discharged by the upper end of fuel-quantity transducer 100, accordingly, electrode assemblie
10 one end are immersed in fuel oil, and the other end is immersed in air, can be measured and be obtained 2 first right angle trigonometry pole plates 11 composition
The capacitance of second capacitor of the capacitance of the first capacitor and 2 second right angle trigonometry pole plates 12 composition, further according to board-like electricity
The calculation formula of container, is back-calculated to obtain fuel oil height.Because fuel oil is different with the dielectric constant of air, for ease of calculating so that
Dielectric constant of the fuel oil height value independent of different medium, the first right angle trigonometry pole plate 11 of the invention and the second right angle trigonometry
The shape of pole plate 12 is identical, and the hypotenuse of the first right angle trigonometry pole plate 11 and the second right angle trigonometry pole plate 12 is oppositely arranged, the
Two right-angle sides of one right angle triangle pole plate 11 and the two right-angle sides correspondence of the second right angle trigonometry pole plate 12 be arranged in parallel.
The fuel-quantity transducer of technical solution of the present invention includes the first capacitor that 2 first right angle trigonometry pole plates 11 are constituted, and
Second capacitor of 2 second right angle trigonometry pole plates 12 composition, measures the capacitance of the first capacitor and the second capacitor, then adopt
With plate capacitor calculation formula calculate and obtain level height.Due to the distribution of charges phase on 2 first right angle trigonometry pole plates 11
Together, the distribution of charges on 2 second right angle trigonometry pole plates 12 is also identical, effectively reduces the influence of edge effect, improves oil mass
The measurement accuracy of sensor 100.
In the present embodiment, each probe assembly 40 includes two probes, and each seal assembly includes two sealings
Part, the mounting disc offers four through holes, and one end of probe described in four is contained in the installation cavity and is connected to
2 first right angle trigonometry pole plates 11 and 2 second right angle trigonometry pole plates 12, the other end connect through corresponding through hole with the chip
Connect.
The fuel-quantity transducer 100 of technical solution of the present invention is by probe assembly 40 by the first right angle trigonometry pole plate 11 and second
Right angle trigonometry pole plate 12 is connected with chip, and the capacitance of the first capacitor measured and the second capacitor is transferred into chip 50.
In the present embodiment, each first right angle trigonometry pole plate and each second right angle trigonometry pole plate are table
Sheet metal of the face covered with insulating barrier.
The the first right angle trigonometry pole plate 11 and the second right angle trigonometry pole plate 12 of technical solution of the present invention are surface covered with exhausted
The sheet metal of edge layer, the sheet metal is chosen as what copper foil can also be, so as to constitute the first capacitor and the second capacitor
Two pole plates.
In the present embodiment, the electrode assemblie 10 also includes the wiring board 16 of first line plate 15 and second, and one first is straight
The right angle trigonometry pole plate 12 of angle triangle pole plate 11 and one second is located at table of the first line plate 15 towards second wiring board
Face, another first right angle trigonometry pole plate 11 and another second right angle trigonometry pole plate 12 are located at the second wiring board court
To the surface of the first line plate.
Technical solution of the present invention is ensures the structural strength of electrode assemblie 10, by one first right angle trigonometry pole plate 11 and one the
Two right angle trigonometry pole plates 12 are plated on first line plate 15, by another first right angle trigonometry pole plate 11 and another second right angle trigonometry
Pole plate 12 is plated on the second wiring board 16, while also allowing for the installation of fuel-quantity transducer 100.
Preferably, the fuel-quantity transducer also includes the outer tube body 20 for being sheathed on the electrode assemblie 10, the outer tube body
20 one end are installed on the installation cavity, and the mounting disc 34 is provided with one first mounting groove 331 and one second mounting groove 332, described
The bottom wall of outer tube body 20 is provided with the 3rd mounting groove 201 and the 4th mounting groove 202, and the two ends of the first line plate are respectively accommodated in
First mounting groove 331 and the 3rd mounting groove 201 described in one, the two ends of second wiring board are respectively accommodated in described second and installed
The mounting groove 302 of groove 332 and the 4th.
The outer cover of electrode assemblie 10 of technical solution of the present invention is provided with outer tube body 20, and the end of outer tube body 20 is connected with end cap
30, the bottom wall of outer tube body 20 is provided with one first mounting groove and one second mounting groove, and end cap 30 is provided with one first mounting groove and one the
Two mounting grooves, for installing fixed electrode component 10, the first mounting groove and the second mounting groove are parallel to each other and are formed with gap,
So that the wiring board 16 of first line plate 15 and second one determining deviation of formation, and then cause two first right angles of the first capacitor of composition
One determining deviation of formation of triangle pole plate 11, and constitute two second right angle trigonometry pole plates 12, one determining deviation of formation of the second capacitor.
Preferably, the end cap 30 offers air admission hole 31 close to one end of the outer tube body 20, and the outer tube body 20 is remote
One end from the end cap 30 offers fuel feed hole 21, and the outer tube body 20 is formed with cavity, the air inlet 31 and it is described enter
Oilhole 21 is connected with the cavity.
The end cap 30 of technical solution of the present invention offers air admission hole 31 at outer tube body 20 so that fuel-quantity transducer 100
Inside connect with outside atmosphere, keep inside and outside pressure it is equal so that fuel oil generation the globule be difficult because pressure difference change into
Entering accommodating cavity causes chip failure or short circuit, and is arranged such raising measurement accuracy, and the setting of fuel feed hole 21 enables fuel oil
Enough enter inside fuel-quantity transducer 100.
In this city embodiment, the mounting disc 34 is convexly equipped with two mounting posts 341, the core towards the surface of the chip 50
Piece 50 is installed on the mounting post 341.
The technical program is by setting mounting post that chip 50 is fixedly mounted so that have certain between chip 50 and mounting disc 34
Distance, puts because the fuel-quantity transducer 100 is tiltedly stood up, even if gas enters accommodating cavity, due to chip 50 and mounting disc 34
There is certain distance poor, gas is easily liquefied as the globule by the range difference, the globule can be dripped because of gravity, be difficult to reach at chip 50.
The present invention also proposes a kind of fuel quantity meas urement system, including fuel tank, in addition to described fuel-quantity transducer 100, described
Fuel-quantity transducer 100 is in the fuel tank, and the fuel-quantity transducer 100 includes the data acquisition module and signal of communication connection
Processing module.
The data acquisition module and signal processing module of the fuel-quantity transducer 100 of technical solution of the present invention are integrated in oil mass
On the chip of sensor, wherein data acquisition module is used to gather capacitance, and the electric capacity value signal is transmitted to signal transacting
Module, signal processing module processing obtains level height.
The fuel quantity meas urement system also include temperature sensor, the temperature sensor be located at the fuel tank in, and with institute
State signal processing module communication connection.
The fuel quantity meas urement system of technical solution of the present invention also includes temperature sensor, for monitoring fuel oil temperature change, enters
And according to the fuel density-fuel density of temperature curve acquisition not in the same time, calculated and obtained by fuel density and fuel bulk
Fuel oil quality.
The present invention also proposes a kind of measuring method of fuel quantity meas urement system, comprises the following steps：
Gather the capacitance C of the first capacitor1With the capacitance C of the second capacitor2；
According to the capacitance C of collection1、C2, calculate oil mass height h.
As shown in Figure 5, it is known that H is the first right angle trigonometry pole plate and the second right angle trigonometry pole plate along the oil mass side of rising or falling
To height, h be current level height, ε0For the dielectric constant of air, ε1For the dielectric constant of fuel oil, S1, S2, S3, S4 difference
For polar plate area, C0When being equal to 0 for oil mass height h, the capacitance of the first capacitor and the second capacitor, C1For the first capacitor
Capacitance, C2For the capacitance of the second capacitor.According to plate capacitor calculation formula, it can obtain：
Further,
So as to obtain,
Two formulas are divided by, obtained
Order
And S1=ah/2, S2=Ah-ah/2, a/h=A/H,
Obtain
Further,
Above formula deformation is obtained
Data acquisition module obtains the capacitance C of the first capacitor1With the capacitance C of the second capacitor2, and by C1And C2
Signal processing module is delivered to, signal processing module is according to capacitance C during zero oil level being previously stored0, so as to resolve fuel-displaced
Position height h, it is not influenceed by the dielectric constant of fuel oil or air.
The capacitance C according to collection1、C2, calculate oil mass height h the step of include：
One preset formula is provided：WhereinC0When being equal to 0 for oil mass height h, the first capacitor
With the capacitance of the second capacitor, H is the first right angle trigonometry pole plate and the second right angle trigonometry pole plate along the oil mass side of rising or falling
To height；
Oil mass height h is calculated according to the preset formula.
The present invention also proposes a kind of aircraft, and the aircraft includes fuel tank shell and is installed on the oil mass of the fuel tank shell
Sensor 100, the concrete structure of the fuel-quantity transducer 100 with reference to above-described embodiment, due to this aircraft employ it is above-mentioned all
Whole technical schemes of embodiment, therefore all beneficial effects that at least technical scheme with above-described embodiment is brought,
This is no longer repeated one by one.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical fields in the scope of patent protection of the present invention.
Claims (10)
1. a kind of fuel-quantity transducer, it is characterised in that：
End cap, the end cap includes mounting disc and the connection end for being respectively arranged on the mounting disc two ends and accommodating end, the connection
Installation cavity is formed with end, accommodating cavity is formed with the accommodating end；
Chip, the chip is installed on the accommodating cavity；
Electrode assemblie, the electrode assemblie includes two plate type electrodes being oppositely arranged in parallel, and the plate type electrode is partially accommodated in institute
State installation cavity；
Two probe assemblies, the mounting disc offers at least two through hole connected with the installation cavity and accommodating cavity, each described
One end of probe assembly is contained in the installation cavity and is connected to plate-type polar plate described in one, and the other end passes through through hole described in one and institute
State chip connection；
Two seal assemblies, each seal assembly is filled in the gap between a probe assembly and the hole wall of through hole.
2. fuel-quantity transducer as claimed in claim 1, it is characterised in that the two-plate electrode includes 2 first right angle trigonometries
The structure phase of pole plate and 2 second right angle trigonometry pole plates, the first right angle trigonometry pole plate and the second right angle trigonometry pole plate
Together, the first right angle trigonometry pole plate described in two is parallel to each other and just to setting, constitutes the first capacitor, the second right angle three described in two
Angle pole plate is parallel to each other and just to setting, constitutes the second capacitor, wherein, one first right angle trigonometry pole plate of the first capacitor
Parallel with the hypotenuse of one second right angle trigonometry pole plate of the second capacitor and be oppositely arranged, corresponding right-angle side is parallel and relative sets
Put, another second right angle trigonometry pole plate of another first right angle trigonometry pole plate and the second capacitor of the first capacitor
Hypotenuse it is parallel and be oppositely arranged, corresponding right-angle side is parallel and is oppositely arranged.
3. fuel-quantity transducer as claimed in claim 2, it is characterised in that each probe assembly includes two probes, each
Seal assembly includes two seals, and the mounting disc offers four through holes, and one end of probe described in four is contained in
The installation cavity is simultaneously connected to 2 first right angle trigonometry pole plates 11 and 2 second right angle trigonometry pole plates, and the other end passes through correspondence
Through hole be connected with the chip.
4. fuel-quantity transducer as claimed in claim 2, it is characterised in that each first right angle trigonometry pole plate and each institute
It is sheet metal of the surface covered with insulating barrier to state the second right angle trigonometry pole plate.
5. fuel-quantity transducer as claimed in claim 2, it is characterised in that the electrode assemblie also includes first line plate and the
Two wiring boards, one first right angle trigonometry pole plate and one second right angle trigonometry pole plate are located at the first line plate towards described second
The surface of wiring board, another first right angle trigonometry pole plate and another second right angle trigonometry pole plate are located at second line
Road plate is towards the surface of the first line plate.
6. fuel-quantity transducer as claimed in claim 5, it is characterised in that the fuel-quantity transducer also includes being sheathed on the electricity
The outer tube body of pole component, described outer tube body one end is installed on the installation cavity, and the mounting disc is provided with one first mounting groove and one
Second mounting groove, the bottom wall of the outer tube body is provided with the 3rd mounting groove and the 4th mounting groove, the two ends point of the first line plate
The first mounting groove described in one and the 3rd mounting groove are not contained in, and the two ends of second wiring board are respectively accommodated in second peace
Tankage and the 4th mounting groove.
7. the fuel-quantity transducer as described in right wants 6, it is characterised in that the end cap is offered close to one end of the outer tube body
Air admission hole, the one end of the outer tube body away from the end cap offers fuel feed hole, and the outer tube body is formed with cavity, the air inlet
Mouth and the fuel feed hole are connected with the cavity.
8. the fuel-quantity transducer as described in claim any one of 1-7, it is characterised in that table of the mounting disc towards the chip
Face is convexly equipped with two mounting posts, and the chip is installed on the mounting post.
9. a kind of fuel quantity meas urement system, including fuel tank, it is characterised in that also including the oil mass described in claim any one of 1-8
Sensor, the fuel-quantity transducer is in the fuel tank, and the fuel-quantity transducer includes the data acquisition module of communication connection
And signal processing module.
10. a kind of aircraft, including fuel tank shell, it is characterised in that it also includes the oil as described in claim any one of 1-8
Quantity sensor, the fuel-quantity transducer is installed on the fuel tank shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360988.6A CN107270997A (en) | 2017-05-19 | 2017-05-19 | Fuel-quantity transducer, fuel quantity meas urement system and aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360988.6A CN107270997A (en) | 2017-05-19 | 2017-05-19 | Fuel-quantity transducer, fuel quantity meas urement system and aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107270997A true CN107270997A (en) | 2017-10-20 |
Family
ID=60064048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710360988.6A Pending CN107270997A (en) | 2017-05-19 | 2017-05-19 | Fuel-quantity transducer, fuel quantity meas urement system and aircraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107270997A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629616A (en) * | 2021-01-05 | 2021-04-09 | 华南农业大学 | Material level detection device and material level detection method for unmanned aerial vehicle medicine chest |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509800A (en) * | 2009-03-23 | 2009-08-19 | 江苏工业学院 | Method for simultaneously detecting double liquid levels of oil and water |
| US20120152005A1 (en) * | 2008-02-08 | 2012-06-21 | Pulstone Technologies, LLC | Method and apparatus for sensing levels of insoluble fluids |
| CN102980630A (en) * | 2012-11-26 | 2013-03-20 | 合肥邦立电子股份有限公司 | Intelligent digital capacitive liquid level sensor |
| CN105136245A (en) * | 2015-09-21 | 2015-12-09 | 中国石油大学(华东) | Triangular capacitive sensor and liquid level measuring system |
-
2017
- 2017-05-19 CN CN201710360988.6A patent/CN107270997A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120152005A1 (en) * | 2008-02-08 | 2012-06-21 | Pulstone Technologies, LLC | Method and apparatus for sensing levels of insoluble fluids |
| CN101509800A (en) * | 2009-03-23 | 2009-08-19 | 江苏工业学院 | Method for simultaneously detecting double liquid levels of oil and water |
| CN102980630A (en) * | 2012-11-26 | 2013-03-20 | 合肥邦立电子股份有限公司 | Intelligent digital capacitive liquid level sensor |
| CN105136245A (en) * | 2015-09-21 | 2015-12-09 | 中国石油大学(华东) | Triangular capacitive sensor and liquid level measuring system |
Non-Patent Citations (1)
| Title |
|---|
| 朱高中: "电容式传感器在液位测量中的应用研究", 《液压与气动》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629616A (en) * | 2021-01-05 | 2021-04-09 | 华南农业大学 | Material level detection device and material level detection method for unmanned aerial vehicle medicine chest |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100453971C (en) | Electrostatic capacity type liquid sensor | |
| CN204758082U (en) | Intelligent drinking cup of non -contact level sensor and applied this sensor | |
| CN106404112A (en) | Method and device for calibration-free measurement of capacitive liquid level sensor | |
| CN107270997A (en) | Fuel-quantity transducer, fuel quantity meas urement system and aircraft | |
| CN203443633U (en) | Double-capacitor liquid level sensor | |
| CN107200140A (en) | Fuel-quantity transducer and aircraft | |
| CN100443891C (en) | Capacitive sensor device | |
| CN104019798B (en) | The nested pole plate inclination angle measurement method of concentric coplanar trisection ring-circle and device | |
| CN107036676A (en) | Fuel-quantity transducer, fuel quantity meas urement system and measuring method | |
| CN104034308B (en) | Concentric coplanar bisection ring-Bisected Circle nesting pole plate inclination angle measurement method and device | |
| CN212807251U (en) | Liquid level sensor structure with electric heating | |
| CN205981364U (en) | Capacitive gauge | |
| CN205384068U (en) | Multifunctional liquid level indicator | |
| US11747186B2 (en) | Device for capacitive measurements in a multi-phase medium | |
| CN107167214A (en) | Fuel-quantity transducer | |
| CN2570749Y (en) | Oil tank level electrode detecting apparatus | |
| CN107449490A (en) | Polar-plate-type capacitance liquid level meter | |
| CN112611886A (en) | Internal ground insulation type acceleration sensor | |
| CN210401298U (en) | Capacitive humidity sensor for meteorological detection | |
| CN206248161U (en) | A kind of capacity-type electronic graduated cylinder | |
| CN213041220U (en) | Calibration and measurement device for building structure engineering | |
| RU2759784C9 (en) | Inventions relating to capacitive level sensor of interface of media | |
| RU2789846C2 (en) | Fuel storage tank containing one capacitive sensor of medium interface level | |
| RU2790425C2 (en) | Method for measuring interface level using a capacitive interface level sensor | |
| RU2790473C2 (en) | Fuel storage tank containing several capacitive sensors of medium interface level |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |
|
| RJ01 | Rejection of invention patent application after publication |