CN101995429A - Egg sensor - Google Patents
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- CN101995429A CN101995429A CN2010102602017A CN201010260201A CN101995429A CN 101995429 A CN101995429 A CN 101995429A CN 2010102602017 A CN2010102602017 A CN 2010102602017A CN 201010260201 A CN201010260201 A CN 201010260201A CN 101995429 A CN101995429 A CN 101995429A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
- G01N33/08—Eggs, e.g. by candling
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Abstract
The present invention discloses an egg detection system, including a variable frequency multivibrator (16.130), input ends of which are connected with electrodes (16.032, 16.034) attached to an egg. The electrodes and the egg are used as capacitors, and the frequency of the multivibrator is changed along the capacitance of the egg. A second multivibrator (16.134) with fixed frequency is used for connection with digital electric bridges (16. 132, 16.136, 16.138), so as to improve sensitivity of a detector by determining a difference of frequencies of the first and second multivibrators.
Description
Technical field
The present invention relates to a kind of method and apparatus that is used to analyze egg.
The present invention specifically is fit to provide a kind of resting period of egg or the evaluation measures of state.
Background technology
Egg has air bag, and described air bag is in " big end " usually and by barrier film itself and albumen is isolated, and along with the prolongation of egg resting period, the amount of moisture will be evaporated by the eggshell that moisture passes barrier film and porous and be reduced in the egg.The air of equivalent will pass eggshell at balloon side and enter.Therefore, along with the prolongation of egg resting period, egg will float in the water when arriving a certain stage.This method has been passed through the rough indicator of " shelf-life " as detecting egg usually.Floating detection will be depended on several factors, for example the temperature of egg and water.Floating detection is accurate definite method of the state of a reference rather than egg.
Traditional method of analyzing egg is the irradiation candling, and wherein light passes the visible indication of egg with the state of relative size that air bag in the egg is provided and egg.
WO 07137786 has described a kind of device that is used for the measuring vessel water yield, comes the relative capacitance between the pair of electrodes in the measuring vessel, measures the variable characteristic of capacitance and calculates capacitance by applying time varying signal to electrode.The specific inductive capacity of material is proportional between capacitance and plate or the electrode.The specific inductive capacity of water is obviously greater than the specific inductive capacity of air.
Summary of the invention
The present invention utilizes specific inductive capacity that material in the egg has large quantity of moisture and water obviously greater than the specific inductive capacity of air, and eggshell porous and egg inner septum are permeable these facts.
According to embodiments of the invention, a kind of method that detects egg is provided, it comprises that applying electric signal to egg and measurement comprises the electrical quantity of the electrical specification of egg, and measures second electrical quantity, and handles the measured value of first and second measured values with the electrical specification of acquisition egg.
Second electrical quantity can comprise background (background) electrical specification.
Treatment step can comprise one or more analyses; Assessment; Contrast; Delete.
According to alternate embodiment of the present invention, a kind of method that detects egg is provided, it comprises that the electric capacity of the egg of utilization under detecting controls the frequency of multivibrator, measures the frequency of multivibrator and by the electric capacity of the frequency computation part egg that records.
The present invention also provides the embodiment of the egg pick-up unit with a plurality of electrode structures, and described a plurality of electrode structures are used to provide electric signal to egg.
Electrical specification can be impedance.
Electrical specification can comprise resistance.
Electrical specification can be an electric capacity.
Alternatively, described electric capacity can be compared the school with a reference capacitance or one group of reference capacitance.
Preferably, alternating voltage is applied in egg by pair of electrodes.
Described electric capacity can be used as the certain proportion of reference value and is measured.
Described electric capacity can utilize bridge balance measurement.
Described electric capacity can utilize digital bridge balance measurement.
The capacitance that records can be compared with a predetermined value or one group of predetermined value.
The present invention also provides a kind of egg inductor that is suitable for implementing above method.
Described inductor can comprise the egg stationary installation, described egg stationary installation has first electrode and second electrode, described first electrode and second electrode are installed on the stationary installation, thereby when egg was placed in the described egg stationary installation, described electrode was contiguous or be contacted with egg.
Described stationary installation can be made (WACKER ELASTOSIL for example by resilient material
TM3003/70A/B).
First and second electrodes can be made by the conduction resilient material.
The conduction resilient material can be a conductive rubber.
Conductive rubber can be silicone rubber (WACKER ELASTOSL for example
TMLR 3162A/B).
Inductor can comprise AC power and capacitance measurement equipment.
Capacitance measurement equipment can comprise balanced bridge.
Balanced bridge can be digital balanced bridge.
The egg stationary installation can be a cup-shaped receptacle.
The egg stationary installation can be " C " shape device.
" C " shape device can have the tapered cross-section to adapt to the egg of different size.
Inductor can comprise signal processing apparatus, in order to the assessment measurement capacitance.
Inductor can comprise third electrode, in order to measure electrical interference.
Signal processing apparatus can be used to disturb from the signal compensation of third electrode.
Treating apparatus can comprise storer, and described storer comprises a predetermined value or one group of predetermined value of impedance.
Treating apparatus can a relative predetermined value or one group of predetermined value assessment measured value.
Frequency can be in the scope of 10khz to 500khz.
Frequency can be in the scope of 50khz to 200khz.
Frequency can be in the magnitude of 16kHz.
The data that the present invention also provides a kind of method to detect from egg with compiling, and make the status information of described data association in relevant egg.
Described data can obtain from said method.
Described status information can obtain from the irradiation candling.
Described data can be drawn by the combination compiling of irradiation candling and impedance measurement.
Described data and status information can be tabulated.
Described table data can be used for the comparison with the actual detected result.
Embodiments of the invention comprise the egg detection system, and described egg detection system has the variable frequency multivibrator, and its frequency response is in the electric capacity that is connected to its input end, and described electric capacity is included in the electric capacity of the egg under detecting.
Described system can comprise second multivibrator and the digital electric bridge with fixed frequency, and described digital electric bridge is connected to the output terminal of first and second multivibrators with the difference between the frequency of determining first and second multivibrators.
Description of drawings
Only one or more embodiment among the present invention are described below with reference to accompanying drawings in the mode of example, wherein:
Fig. 1 and Fig. 2 schematically show that air bag increased with the resting period in the egg;
Fig. 3 and Fig. 4 schematically show the arrangement of electrode according to an embodiment of the invention, and it is suitable for measuring the electrical specification of egg;
Fig. 5 schematically shows electrode according to an embodiment of the invention, and described electrode is adapted to the egg of different size;
Fig. 6 and Fig. 7 schematically show the egg stationary installation, and described egg stationary installation has electrode shown in Figure 5.
Fig. 8 A schematically shows the cup-shaped egg stationary installation that has peripheral electrode according to an embodiment of the invention.
Fig. 8 B schematically shows the sectional view that detects cup among Fig. 8 A, and wherein egg is inserted in the described cup.
Fig. 9 schematically shows the egg stationary installation of the principle of application drawing 8 shown devices.
Figure 10 schematically shows the bottom surface of installing among Fig. 9.
Figure 11 schematically shows egg checkout equipment according to an embodiment of the invention.
Figure 12 and Figure 13 illustrate the electrode structure that substitutes according to an embodiment of the invention.
Figure 14 illustrates metering circuit according to an embodiment of the invention.In this system, the capacitance that records is used to modulate the frequency of multivibrator.
Figure 15 is the sequential chart of the work of system shown in Figure 14.
Figure 16 is the structural drawing of the digital electric bridge of the diagram embodiment of the invention.
Figure 17 is the structural drawing of micro controller system according to an embodiment of the invention.
Figure 18 is the sequential chart of the work of system shown in Figure 16.
Figure 19 illustrates another embodiment of cup.
Figure 20 illustrates the alternate embodiment of cup.
Figure 21 illustrates the inversion process gradually of cup shown in Figure 20.
Be meant the numeral indication figure number of fullstop front and the Ref. No. of the digital indicator elment after the fullstop with in the accompanying drawings marking convention.Under possible situation, components identical Ref. No. used in the different accompanying drawings is indicated components identical.
Be appreciated that unless otherwise indicated accompanying drawing plays schematic effect but not accurately expression, and is not to draw in proportion.The feature of entity shown in the orientation of accompanying drawing is selected to be used to illustrate, and entity orientation in use needn't be shown.
Embodiment
The method of egg induction installation that illustrated embodiment represented below with reference to accompanying drawings and induction egg impedance operator is described the present invention.
The present invention provides the structure and the different embodiment in position of detecting electrode.
In one embodiment, provide two detecting electrodes, and the two is all in place and always near the part of the egg that is filled.
In another embodiment, provide two electrodes, one of them is in place and always approach the part of the egg that is filled, and another is in place and near the part of the new egg that is filled, and near the air bag in the original egg.
In the 3rd embodiment, provide two electrodes, one of them is near being filled part, and another is always near air bag.
In other embodiments, provide detecting electrode more than two, one of them is always near the part of the egg that is filled, always another is near air bag, and described or each additional electrode is with respect to prolonging the point that the air bag that increases is positioned at the centre with the egg resting period.According to preamble, it will be understood by those skilled in the art that on the basis that does not deviate from notion of the present invention the configuration of positioning of electrode can be adopted multiple other structure.
In other embodiments, the 3rd electrode can be used as emi (electromagnetic interference (EMI)) exploring electrode.
Fig. 1 illustrates egg 1.002, and described egg 1.002 has eggshell 1.010, albumen 1.004, comprises barrier film 1.008 and the air bag or the air bag 1.006 of albumen.Line 1.012 indicates the base portion of air bag.In Fig. 2, indicate by line 2.012, owing to making air bag 2.006, water loss in the egg liquid 2.004 expanded.
The electrode of Fig. 3 and the schematically illustrated first embodiment according to the invention of Fig. 4 is with respect to the layout of egg.Described egg utilizes the small end orientation of bottom.Described small end is contacted with first electrode 3.014.Second electrode 3.016 is set to the top near egg, promptly near big end, still is close to or higher than described exposure level line (but when egg still time spent) at described big end egg liquid.Electrode 3.014 and 3.016 is disposed such, if ignore eggshell and barrier film, the measurement of electric capacity will always have the egg liquid between electrode 3.014 and 3.016 so.
Yet in Fig. 4, the air bag size increases, the egg liquid thereby electrode 3.016 is not reacceesed.When egg liquid horizontal line is reduced under the electrode 3.016, the value during near egg liquid will change the capacitance that records with respect to electrode 3.016.This will be equivalent to the electric capacity that the capacitances in series of filling air is filled egg liquid.
In order to improve the degree of accuracy of measurement, also can provide the 3rd reference electrode 3.018.Electrode 3.018 is in place and there is the point of egg liquid in the contact eggshell in egg when egg is still intact.Electrode 3.018 can be provided for the reference measurement values of comparing with the value that records at electrode 3.016 places.
Fig. 5 illustrates the adjustment to Fig. 3 and layout shown in Figure 4, and it is fit to be adapted to the egg of different size.Interval between electrode 5.014 and the electrode 5.016 can be reduced gradually to adapt to the egg of different size.
Fig. 6 illustrates and is suitable for the fixedly egg fixator of the egg of different size (shown among Fig. 7 7.002 and 7.003), wherein is manufactured with reference to Fig. 3 and described those of Fig. 4 and measures setting.Fixator 6.020 has in fact " C " tee section, and described " C " tee section can reduce gradually to adapt to the egg of different size.Fixator 6.020 comprises electrode 6.014,6.016 and 6.018, and these electrodes are all worked in the mode identical with the described mode of Fig. 4 with reference Fig. 3.
Fig. 8 A and Fig. 8 B illustrated embodiment and previous embodiment and prior art have a lot of differences.One of them difference is that the cup among Fig. 8 is suitable for receiving described egg, and wherein the air bag of egg is in the bottom of cup.
Fig. 8 A schematically shows the electrode of egg detecting device according to another embodiment of the invention.Described detecting device adopts cup 8.030 forms that have electrode on the inwall.Shown in egg 8.002 be in the state that inserts before the described cup.Described egg is inserted into, and wherein air bag is positioned at the bottom of described cup.In this arrangement, the contact force of generation of the weight of egg and electrode.This helps to reduce the air gap between eggshell and the electrode, and reliable contact the between the electrode on the inwall of eggshell and cup is provided.The size of described cup is suitable for when the big egg of insertion, can make big egg be contacted with induction electrode and contacts public electrode and reference electrode.
Bottom electrode, promptly induction electrode 8.032, are suitable for contacting the end in the insertion cup of egg.This electrode is matched with the bottom of described cup.In use, the end with egg of air bag is inserted into described cup, has orientation in fact straight up when described egg is inserted in the described cup.
The second middle electrode, promptly public electrode 8.034, are positioned at circular layout on the inboard of cup.Public electrode can be a ground-electrode.Public electrode is horizontal arcuate shape and has the gap and be used to be connected to the outer detecting circuit (not shown) to allow connecting the edges that lead-in wire 8.038 led to cup from first of bottom electrode 8.032.Second connects lead-in wire 8.040 is used for similar purpose for target 8.034.Third electrode, promptly reference electrode 8.036, equally partly surround cup and are provided for going between 8.038,8.040 gap.The 3rd connects the edge of lead-in wire 8.042 connection electrode 8.036 to cup.In alternate embodiment, can draw by the perforation in the wall of cup with being connected of electrode.
Induction electrode 8.032, ground-electrode 8.034 and reference electrode 8.036 in place and in abutting connection with or the contact egg that places cup to be used to detect.When detecting, induction electrode 8.032 is in place and in abutting connection with the air bag of egg.Ground-electrode 8.034 is in place and be in usually above the air bag.Reference electrode 8.036 is in place and always near liquid containing thing in the egg.Below its effect will be described.
Shown in Fig. 8 B, the electric field 8.072 between induction electrode 8.032 and ground-electrode 8.034 passes air bag 8.006 and also passes some albumen usually.Electric field line 8.074 between reference electrode 8.036 and ground-electrode 8.034 passes albumen, but does not pass air bag.
The specific inductive capacity of the permittivity ratio air of water is big doubly a lot.Therefore, the proportional variation of the volume of water is being used a lot of times greatly than the proportional variation of the volume of air.
Equally, the preferred path of electric field line is the path of passing the impedance minimum.Therefore, for the reference electric field line, the larger proportion of electric field will pass albumen.Similarly, because the induction field path comprises a certain proportion of albumen, so albumen and air bag are still passed in preferred path.
When egg is detected for the first time, can think that air bag 8.006 is initial air bag.In a few days, air bag will be expanded as the air bag 8.007 that is marked by dotted line.As shown in the figure, electric field line 8.072 length of passing air is passed the length of less initial air bag 8.006 greater than it.This path still comprises a certain proportion of albumen, but the albumen that this part albumen passes during less than initial the detection.Therefore, for air bag 8.007, will change at the electric capacity of the electric capacity between induction electrode and the ground-electrode than the time at air bag 8.006.The albumen of equal length when on the other hand, the electric field line 8.074 between reference electrode 8.036 and ground-electrode 8.034 passes and detects for the first time.For the purposes of the present invention, can consider to ignore initial conditions and the variation of the specific inductive capacity of albumen between the state for the second time.
Additional electrical environment induction electrode (not shown) can also be provided, and therefore spuious electric pulse or electromagnetic interference (EMI) (emi) can be eliminated from the signal that records.The environment induction electrode placed near detecting electrode, guaranteed that the environment induction electrode detector is to the similar electromagnetic interference (EMI) that is subjected to potential electrode.Yet the environment electrode is in place and do not measure the electric capacity of egg.Single environment electrode can be used to a plurality of cups.Utilize microcontroller the electromagnetic interference (EMI) electrode signal can be deducted from the induction electrode measured value with proper proportion, to proofread and correct these readings.
Fig. 9 is for implementing the synoptic diagram of the detection cup of electrode among Fig. 8.Cup 9.030 is installed on the installing plate 9.050 or is one-body molded so that Unitarily molded container to be provided with installing plate 9.050.The edge 9.044 that protrudes is formed on the upper edge of cup.Neoprene lead-in wire 9.038,9.040, the 9.042 extensible tops of going up of conduction to the edge, or even cross described edge and stretch down from the outer wall at described edge then.This set can be used to promote and being connected that external power goes between that described external power lead-in wire is provided with elastic connector with contact conduction neoprene lead-in wire.Described lead-in wire is electrically connected with related electrode 9.032,9.034 and 9.036 respectively.Described electrode also can be formed by the conduction neoprene.
Electrode 9.034 and 9.036 forms the arc that surrounds described cup, and reserves the gap, and lead-in wire 9.038 and 9.040 can pass described gap and lead to connector, and is attached to checkout equipment together with the lead-in wire 9.042 of reference electrode 9.036.
In one embodiment, have only two electrodes,, be used to measure the electric capacity of egg as 9.032 and 9.034.Third electrode 9.036 can be used as reference electrode.
Although in this embodiment, described cup is to be made by neoprene with electrode, on the basis that does not deviate from notion of the present invention, and the material that can adopt other to be fit to.
Figure 10 is the upward view of cup among Fig. 9, and it illustrates the partial view that the with dashed lines outline line marks electrode and relevant lead-in wire.
Figure 11 is the schematic diagram of egg detection system according to an embodiment of the invention.Described system comprises container shown in Figure 9.Described container comprises the cup 11.030 and the installing plate 11.050 of integrally moulded moulding.Conducting electrode 11.032,11.034 and 11.036 is connected to checkout equipment 11.011 by their lead-in wires 11.066,11.068,11.070 separately.Described checkout equipment can comprise microcontroller, and this microcontroller has microprocessor 11.060, analog to digital converter (ADC) 11.064,11.080 and signal generator 11.062.
System among Figure 11 can be described as the driving detecting device, because signal is applied between induction electrode and the ground-electrode via line 11.066 and 11.068.
This system is suitable for measuring owing to air bag in the egg changes the changes in capacitance that causes.The signal of given frequency is applied in induction electrode 11.032 and ground-electrode 11.034, and measures electric capacity by ADC11.064 and processor 11.060.Similarly, reference electrode 11.036 is connected to ADC11.080 and causes processor and is used to calculate electric capacity.
Yet, because induced signal is relatively very little, just need be with its amplification before signal is put on ADC.In addition, the ADC conversion can be introduced error.
And the electric capacity of egg is little than lead-in wire with the electric capacity of electrode, and the changes in capacitance of egg is little than the electric capacity of egg.
Figure 14 illustrates metering circuit according to another embodiment of the invention, and its working method can be with reference to sequential chart shown in Figure 15.
In this system, the frequency that the electric capacity of the air bag of the egg that records part is used to modulate multivibrator.Multivibrator can be used for accurately and the measurement of electrode capacitance cheaply.Schmidt trigger 14.104 has RC and regularly is provided with, and this RC regularly is provided with the feedback resistance 14.106 and electric capacity 14.108 that comprises the input end that is connected to Schmidt trigger 14.104.Electric capacity 14.108 can be provided and in the work of the capacitance that records synchro-nized multivibrator when low.And induction electrode is connected to the input end of Schmidt trigger 14.104 and is in parallel with capacitor 14.108.Because resistance 14.106 is fixed with capacitor 14.108, the rise time of the input signal of multivibrator is along with changing from the variation of the capacitance of sensing of induction electrode.Therefore, output frequency changes according to the capacitance that induction electrode records, and this frequency can easily be recorded by microcontroller.The output of multivibrator can be fed to second Schmidt trigger 14.118 and therefore be fed to digital counter 14.114.With reference to shown in Figure 15, counter output is used to determine, after the pulse of the starting point of counting sequence-send predetermined quantity at multivibrator-and institute's elapsed time.
As shown in figure 15, measure sequence by RESET (replacement) signal institute initialization from microcontroller.Measure the timer in sequence enabling counting device 14.114 and the microcontroller.Counter is set up in order to calculate the specific quantity from the pulse of Schmidt trigger 14.118, and for example 16, this value is determined in conjunction with Schmidt trigger 14.104 by the input capacitance that is connected to multivibrator.When the specific quantity of pulse is calculated, just can determine the elapsed time, and therefore the indication of the frequency of multivibrator is provided that the indication as the capacitance of the input end of multivibrator is transferred in this indication.
Microcontroller can be programmed with every 1ms (millisecond) and produce interruption.At this intercourse, microcontroller can be programmed producing the RESET signal with counter reset 14.114, and also in order to trigger initial multivibrator state.In this case, do not need to measure the distance between the edge of a pulse, and only need calculate the end point of 16 pulses.Another advantage of this system is can be with the locking of electrode multivibrator to reduce electromagnetic radiation.
This system is very effective in the obviously very big situation of capacitance variation, if but described variation is very little, and measured value may not be very accurate so.
According to another embodiment of the invention, digital electric bridge is measured but not analog form, can be in order to improve degree of accuracy.In the method, the difference between reference electrode signal and induction electrode signal is determined by digital electric bridge shown in Figure 16.
In system shown in Figure 16, adopt multivibrator system same as shown in Figure 14.Multivibrator 16.130 is connected to counter/frequency divider 16.132, and its divide ratio for example is 2
8(256).In this case, counter output will obtain importing 256 pulses and and the little variation of each pulse and.Finally, we " multiply by " 256 to obtain more accurate measured value with a pulse change.
The shortcoming of this multivibrator is, because associated change is still identical, so whole pulse is very long.For fear of this situation, adopted similar multivibrator 16.134, but it has constant reference capacitor C
REFThis multivibrator is suitable for the frequency work near measurement multivibrator 16.130, and is connected to similar counter 16.136.Therefore, with reference to very close with the output signal of measuring " digital electric bridge arm ", and the difference of these two kinds of signals can utilize XOR (XOR) logical block to record.
Induction electrode 16.032 and ground-electrode 16.034 are connected to the input end of multivibrator 16.130, multivibrator 16.130 actuation counter 16.132.Reference electrode is connected to the input end of second multivibrator 16.134, and second multivibrator 16.134 drives second counter 16.136.
Counter 16.132 and 16.136 output are applied to the input end of xor logic piece 16.138, and the xor logic piece is determined pulse in time the difference of two counters for supply predetermined quantity (for example 256).Therefore, XOR gate is output as the measured value of the difference between the frequency of multivibrator 16.130 and 16.134.Along with the increase of air bag size, the difference of this frequency changes in time.
Figure 18 is the sequential chart that the work of system shown in Figure 16 is shown.
In sequential chart shown in Figure 180, have than the long slightly recurrence interval of induction multivibrator 16.132 with reference to multivibrator 16.136, and therefore reference count needs the counting with the appointment that reaches 256 pulses more of a specified duration.Therefore, XOR gate 16.138 produces output pulses (shown in bottom sequential chart among Figure 18), and this pulse starts from the 256th pulse of self-induction multivibrator and terminates in the 256th pulse with reference to multivibrator.The length of this XOR output pulse is the indication of the difference between the multivibrator frequency.Therefore this indication can be in order to the measured value of current capacitance that egg is provided when calibration.
This system also has the another one advantage.In conjunction with reference to the constant capacitance device, also can adopt reference electrode 16.036.This electrode should be positioned at the zone identical with potential electrode but not be accurately to be in identical position-this reference electrode not answer induced signal but the inductive electromagnetic environment.In this case, because output signal is the difference between the input signal, so external electromagnetic field is identical to two " digital electric bridge arm " effect, and external electromagnetic field will be eliminated or obviously reduce (is not in the absolute situation about equating in the influence to electrode).And, because two counters all should calculate the spike of equal number, so short spike will be ignored fully.
This system has lot of advantages.Most microcontrollers have timer and the extra function that is used to measure.
Described microcontroller can be programmed with regular time computation of Period from the pulse of multivibrator output or handle and be used for the interruption that the recurrence interval measures.
Count cycle can be set to any multiple of 20ms or 20ms.In the situation of recurrence interval measurement, can in 20ms, obtain a plurality of measured values and calculating mean value.Use the multiple of 20ms, can " digitally filter " noise of 50Hz, extra hardware is used for the simulation filtration and do not need arbitrarily.
In home, because short HF spike can only influence a count cycle, thus cause lower error rate, especially after changing caused extra average owing to slow signal.
Than simulation output and ADC, frequency can record with good degree of accuracy in the wide dynamic range (owing to being 16 digit counters).
This method has also been saved the needs that mimic channel is regulated.
The cost of this measuring method is lower than other method.
Figure 17 is the structural drawing that is suitable for use in the micro controller system of embodiment among the present invention.For example with reference to Figure 14 to Figure 16 and the described content of Figure 18, microcontroller 17.090 is connected to capacitance-digital converter 17.086,17.092.First capacitance-digital converter 17.086 can be connected to a plurality of induction electrode arrays that detect cup, and second capacitance-digital converter 17.092 can be connected to the corresponding reference electrod-array.Controller 17.090 is suitable for reading electrode by multiplexer system 17.094,17.096 respectively.Therefore the system of Figure 17 can be used in and detect a plurality of eggs in the very short period.
Figure 12 and Figure 13 illustrate substituting electrode system, and wherein pair of electrodes is used to measure the air bag that is in series and the capacitance of egg liquid.Egg 12.002 has air bag 12.006 on protein 12 .004.Top electrodes 12.022 is suitable for covering at the top of egg and with it and contacts.Described electrode is very flexible to be enough to be out of shape and to adapt to the shape of egg.Bottom electrode 12.024 is suitable for meeting the bottom of egg equally.In this set, between electrode 12.022 and electrode 12.024, the electric capacity of air bag and the electric capacity of albumen are in series.The capacitance C of series capacitors C1 and C2
SProvide by following equation:
C
S＝(C1×C2)/(C1+C2)
Figure 19 illustrates cup according to an embodiment of the invention, and wherein electrode is suitable for contacting with the egg of different size.Potential electrode is similar to the electrode structure shown in Fig. 8 B, but public electrode 19.034 and reference electrode 19.036 are suitable for flexibly contacting the egg of different size.These electrodes protrude and are made and conducted electricity by resilient material from the inwall of cup.Electrode 19.034 is suitable for tilting when egg is inserted cup with electrode 19.036, therefore little egg is with the electrode of contact measurement electrode 10.032 and protrusion, and when big egg inserts, the electrode of protrusion will fully tilt to allow big egg also contact measurement electrode 19.032 and the electrode that protrudes of contact also simultaneously.The cross section that the electrode that protrudes can have any appropriate.In the embodiment shown, the electrode of protrusion has the triangular-section and hangs from wall of cup.
Figure 20 and Figure 21 illustrate the alternate embodiment of induction cup 20.030, and wherein said cup is squeezed at first, electrode 20.032,20.032,20.034 be in inner face and be in inverted cup " among ".In this was provided with, egg was placed on the top of the dome that is formed by inverted cup, and to pressing down, the described cup of softness experiences the stage [A] to [G] shown in Figure 21 and is inverted thereby make highly.Stage [A] illustrates the inboard inverted cup 21.030 that is provided with electrode 21.032,21.034,21.036 of cup.At stage [B], described glass top forms depression 21.202 by the user with the top that egg is pressed against inverted cup, and this depression 21.202 is pressed downwards gradually along with egg and increased gradually.In some stages, for example the stage [E], cup can reach transfer point (toggle point), continues will cause that cup is converted to the structure shown in the stage [G] downwards at this transfer point place again, and wherein said cup presents the supine egg 21.002 that is placed with in recess wherein.Transfer point will be created in some place of afterwards certain of edge plane that depression is crossed cup.
Described cup is so constructed, and the material of cup is soft fully, thereby the side that makes the elastic force of electrode by described cup material be butted on egg is mutually fixed.The egg that described cup is configured to size adaptation different size keeps wall of cup to contact described egg simultaneously.
In this embodiment, when egg inserted, electrode was in the outside of cup.But, have been found that then measurement of correlation just can not be subjected to the influence of the insertion of the wall of cup between egg and the electrode if wall of cup enough approaches (for example 7mm or thinner magnitude) to be inverted at an easy rate to allow it.
As shown in figure 21, the edge of cup can be provided with edge 21.204, and described edge 21.204 can promote being inverted gradually of cup and reduce at the inner face of cup 21.030 and the stress at back up pad 21.050 places.
In this manual, for the reference of text, disclosure or other announcement or use is not to make followingly admitting, that is, text, disclosure, announcement or use are formed on the common practise of those skilled in the art in the priority date of this instructions, except as otherwise noted.
In this manual, the term of indication orientation or direction, for example " on ", D score, " vertically ", " level ", " left side ", " right side ", " crosscut " or the like and be not intended to and form absolute term, unless content needs or explanation is arranged in addition.These terms are with ordinary representation orientation shown in the drawings.
Once the word that used in the literary composition " comprises " and is interpreted as " open " implication, i.e. the meaning that " comprises ", but not be limited to " closed " implication, promptly " only by ... form ".Occurring words " comprises " in the same literary composition, " containing " and " being provided with " also should do understanding like this.
Be appreciated that disclosed and the present invention who limits contain two or more all substituting combinations of independent technique feature that mention in the literary composition or explanation here.All these different combinations comprise a plurality of substituting aspect of the present invention.
Although described specific embodiments of the invention here, it will be understood by those skilled in the art that on the basis that does not deviate from principal character of the present invention the present invention can adopt other particular form to implement.Therefore embodiments of the invention and example should be by all sidedly with schematic and the local formula of indefiniteness is considered, and therefore all conspicuous for a person skilled in the art adjustment should be encompassed in wherein.
Claims (23)
1. method that detects egg, it comprises, applies electric signal to described egg and measure first electrical quantity of the electrical specification that comprises described egg and measure second electrical quantity and handle the measured value of described first and second measured values with the electrical specification that obtains described egg.
2. detection method according to claim 1 is characterized in that, described second electrical quantity comprises the background electrical specification.
3. method according to claim 1 and 2 is characterized in that treatment step comprises one or more analyses; Assessment; Contrast; Delete.
4. method that detects egg, it comprises, utilizes the electric capacity of the egg under detecting to control the frequency of multivibrator, measures the frequency of multivibrator and by the electric capacity of the described egg of frequency computation part that records.
5. method according to claim 4 is characterized in that, the electric capacity that records is compared with a predetermined value or one group of predetermined value.
6. egg detection system with variable frequency multivibrator, the frequency response of described multivibrator are in the electric capacity that is connected to its input end, and described electric capacity is included in the electric capacity of the egg under detecting.
7. egg detection system according to claim 6, it comprises second multivibrator and the digital electric bridge with fixed frequency, and this digital electric bridge is connected to the output terminal of described first and second multivibrators with the difference between the frequency of determining described first and second multivibrators.
8. according to claim 6 or 7 described egg detection systems, it comprises the egg stationary installation, described egg stationary installation has first electrode and second electrode, described first electrode and second electrode are installed on the described stationary installation, thereby when egg was placed in the described egg stationary installation, described electrode was contiguous or be contacted with described egg.
9. egg detection system according to claim 8 is characterized in that described stationary installation is made by resilient material.
10. egg detection system according to claim 8 is characterized in that, described first and second electrodes are made by the conduction resilient material.
11. egg detection system according to claim 10 is characterized in that, described conduction resilient material is a conductive rubber.
12. egg detection system according to claim 11 is characterized in that, described conductive rubber is a silicone rubber.
13., it is characterized in that it comprises AC power and capacitance measurement equipment according to each described egg detection system in the claim 6 to 12.
14., it is characterized in that described egg stationary installation is a cup-shaped receptacle according to each described egg detection system in the claim 6 to 13.
15., it is characterized in that it comprises signal processing apparatus, in order to assess described measurement capacitance according to each described egg detection system in the claim 6 to 14.
16. according to each described egg detection system in the claim 6 to 15, it is characterized in that it comprises third electrode, in order to measure electrical interference.
17., it is characterized in that described signal processing apparatus is programmed to be used to the signal compensation interference from described third electrode according to each described egg detection system in the claim 6 to 16.
18. according to each described egg detection system in the claim 6 to 17, it is characterized in that it comprises storer, a predetermined value or one group of predetermined value of described memory stores impedance.
19., it is characterized in that described treating apparatus can be programmed to assess described measured value with respect to a predetermined value or one group of predetermined value according to each described egg detection system in the claim 6 to 18.
20. a method that is used to compile the data that detect from egg, this method said method comprising the steps of the status information of described data association in relevant egg:
A plurality of eggs are carried out the irradiation candling to determine their state; And
Utilize claim 1 or 2 or 3 described methods to measure the electric capacity of each egg; And
Event memory is in relatively tabulating.
21. an egg detects cup, it comprises the recess of the bottom that is suitable for meeting egg, the induction electrode that meets the bottom of described recess, the ground-electrode of air bag top that is arranged on the egg that inserts described cup and the reference electrode that is suitable for the albumen of contiguous egg under detecting.
22. a kind of method that detects egg that describes with reference to the accompanying drawings in fact.
23. a kind of egg detection system that describes with reference to the accompanying drawings in fact.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2009903985 | 2009-08-21 | ||
| AU2009903985A AU2009903985A0 (en) | 2009-08-21 | An Egg Sensor | |
| AU2010203289 | 2010-07-22 | ||
| AU2010203289A AU2010203289B2 (en) | 2009-08-21 | 2010-07-22 | An Egg Sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101995429A true CN101995429A (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102602017A Pending CN101995429A (en) | 2009-08-21 | 2010-08-20 | Egg sensor |
Country Status (2)
| Country | Link |
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| CN (1) | CN101995429A (en) |
| AU (1) | AU2010203289B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940857A (en) * | 2014-05-05 | 2014-07-23 | 江南大学 | Device and detection method for rapidly detecting oil yield of salted egg in nondestructive manner |
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|---|---|---|---|---|
| HU212491B (en) * | 1991-10-17 | 1996-07-29 | Kocsanyi | Electric method and device for determining freshness and controlling quality of eggs |
| JP2006046982A (en) * | 2004-08-02 | 2006-02-16 | High Serve:Kk | Method and apparatus for detecting freshness of egg by impedance sensing |
| CN1820191A (en) * | 2004-02-13 | 2006-08-16 | 东京毅力科创株式会社 | Capacitive sensor |
| CN101273269A (en) * | 2005-07-29 | 2008-09-24 | 恩布里克斯公司 | Method and apparatus for identifying live eggs |
| JP2008298446A (en) * | 2007-05-29 | 2008-12-11 | Oga Electric Co Ltd | Salinity measuring device |
| CN101413910A (en) * | 2007-10-19 | 2009-04-22 | 邓霞 | Method for measuring medium content and measuring instrument |
| CN101490567A (en) * | 2006-06-01 | 2009-07-22 | 伊莱克斯家用产品公司 | Method and device for measuring the capacitance of a capacitive component |
| JP4308305B1 (en) * | 2008-03-26 | 2009-08-05 | 元美 勝村 | Boiled egg deciding device and judging method |
-
2010
- 2010-07-22 AU AU2010203289A patent/AU2010203289B2/en active Active
- 2010-08-20 CN CN2010102602017A patent/CN101995429A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU212491B (en) * | 1991-10-17 | 1996-07-29 | Kocsanyi | Electric method and device for determining freshness and controlling quality of eggs |
| CN1820191A (en) * | 2004-02-13 | 2006-08-16 | 东京毅力科创株式会社 | Capacitive sensor |
| JP2006046982A (en) * | 2004-08-02 | 2006-02-16 | High Serve:Kk | Method and apparatus for detecting freshness of egg by impedance sensing |
| CN101273269A (en) * | 2005-07-29 | 2008-09-24 | 恩布里克斯公司 | Method and apparatus for identifying live eggs |
| CN101490567A (en) * | 2006-06-01 | 2009-07-22 | 伊莱克斯家用产品公司 | Method and device for measuring the capacitance of a capacitive component |
| JP2008298446A (en) * | 2007-05-29 | 2008-12-11 | Oga Electric Co Ltd | Salinity measuring device |
| CN101413910A (en) * | 2007-10-19 | 2009-04-22 | 邓霞 | Method for measuring medium content and measuring instrument |
| JP4308305B1 (en) * | 2008-03-26 | 2009-08-05 | 元美 勝村 | Boiled egg deciding device and judging method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2010203289A1 (en) | 2011-03-10 |
| AU2010203289B2 (en) | 2015-04-09 |
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Application publication date: 20110330 |