CN107884115A - The measuring method and device of aerostatic buoyancy change - Google Patents
The measuring method and device of aerostatic buoyancy change Download PDFInfo
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- CN107884115A CN107884115A CN201610875675.XA CN201610875675A CN107884115A CN 107884115 A CN107884115 A CN 107884115A CN 201610875675 A CN201610875675 A CN 201610875675A CN 107884115 A CN107884115 A CN 107884115A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
Abstract
The invention discloses the measuring method and device of a kind of aerostatic buoyancy change, belong to field of measuring technique.Including：Weighing pot the first temperature in the first state and the first quality difference value of relative object of reference are obtained, obtains second quality difference value of the substitute with respect to object of reference, according to the first gravity difference of the first quality difference value substitute relative with the second quality difference value acquisition weighing pot；Weighing pot second temperature in the second condition and the 3rd quality difference value of relative object of reference are obtained, obtains fourth quality difference value of the substitute with respect to object of reference, according to the second gravity difference of the 3rd quality difference value substitute relative with the 4th quality difference value acquisition weighing pot；According to the first gravity difference and the second gravity difference obtain weighing pot by the first temperature to second temperature aerostatic buoyancy changing value；Object of reference and the object that substitute is steady quality.The changing value of the aerostatic buoyancy of weighing pot at different temperatures is measured by the substitute of steady quality, it is as a result more true, directly perceived and reliable.
Description
Technical field
The present invention relates to field of measuring technique, the more particularly to a kind of measuring method and device of aerostatic buoyancy change.
Background technology
In field of measuring technique, gaseous mass is often weighed using weighing pot.In actual applications, gas weighing pot
The change of pot temperature can be brought during being inflated and deflating, and temperature change can cause to weigh the change of tank volume
Change, so as to bring the change of its aerostatic buoyancy.Symmetrical measuring tank and its in gas carry out mass measurement when, aerostatic buoyancy can be straight
Connect influence measurement result.Therefore, when measuring weighing pot and gaseous mass therein, it is necessary to changing band due to weighing pot temperature
The aerostatic buoyancy come, which changes, measures amendment.
In the related art, the measurement of aerostatic buoyancy change is realized based on cubing.It is big by measuring
Atmospheric pressure and temperature conversion draw atmospheric density, and it is empty to converse it according to the atmospheric density of measurement measured object volume and place space
Lift of gas changes.Wherein, existing volume measuring method includes drainage, the agar diffusion method that overflows, buries micromicrofarad and calculating method.Drainage for
The measured object that discord water reacts, is ready for the measuring flume of enough large volumes, first water will be poured into measuring flume, afterwards by measured object
It is completely submerged in water, is obtained by measuring SEA LEVEL VARIATION because measured object is put into the Volume Changes brought so that it is determined that measured object
Volume.Similar with drainage, excessive agar diffusion method is also required to measuring flume, but measuring flume need to fill water, and measured object is completely submerged in into water
In after, measured object volume is determined by the volume for measuring the water overflowed.The water in drainage can be changed into fine sand by burying micromicrofarad, be adopted
Take and carry out cubing with draining side's similar mode, because sand is slow with respect to the heat conduction of water, while the model of sand bearing temperature
Enclosing extensively will not also evaporate, and can solve the part drawback of drainage.The computing rule density of measured object, shape and survey known to
The measured object temperature of amount calculates measured object volume.
During the present invention is realized, inventor has found that prior art at least has following difference：
Measurement sump volume needed for drainage and excessive agar diffusion method need to be more than measured object, thus cost is larger, and operability compared with
It is low；Again because measured object will be completely submerged in water, if water has temperature difference with measured object, measured object temperature can be changed quickly
Degree, directly affects measurement result；Further, since the freezing point and boiling spread of water, it is determined that the temperature range of measured object need to be in
Between 0-100 DEG C, go beyond the scope and will be unable to measure, and if temperature is too high water rapid evaporation can be made to bring error, so actual
Temperature range can be smaller in operation.It is identical with drainage to bury micromicrofarad, cost height and poor operability；Although sand heat-transfer rate ratio
Water is slow, but still the problem of changing measured object temperature be present, influences measurement result.Computing rule is for irregularly shaped object, measurement
It is accurate to ensure, calculating has larger error；And temperature distributing disproportionation is even can not obtain measured object true temperature, influence to calculate
As a result；In addition, measured object material is various, measurement difficulty is larger.
The content of the invention
In order to solve the problems, such as correlation technique, the embodiments of the invention provide a kind of aerostatic buoyancy change measuring method and
Device.The technical scheme is as follows：
First aspect, there is provided a kind of measuring method of aerostatic buoyancy change, methods described include：
Weighing pot the first temperature in the first state and the first quality difference value of relative object of reference are obtained, obtains the title
Second quality difference value of the relatively described object of reference of the substitute of measuring tank, it is of poor quality according to first quality difference value and described second
Value obtains the first gravity difference of the relatively described substitute of weighing pot；
Weighing pot second temperature in the second condition and the 3rd quality difference value of relatively described object of reference are obtained, is obtained
The 4th quality difference value of the relatively described object of reference of the substitute is taken, it is of poor quality according to the 3rd quality difference value and the described 4th
Value obtains the second gravity difference of the relatively described substitute of weighing pot；
According to the first gravity difference and the second gravity difference obtain the weighing pot by first temperature to
The changing value of the aerostatic buoyancy of the second temperature；
Wherein, the object of reference and the substitute are the object of steady quality.
Optionally, it is described according to first quality difference value institute relative with second quality difference value acquisition weighing pot
The first gravity difference of substitute is stated, including：
Obtain the first mass fiducial value between first quality difference value and second quality difference value, obtain described the
Product between one mass fiducial value and acceleration of gravity, using obtained result as the relatively described substitute of the weighing pot
First gravity difference；
It is described that the relative replacement of the weighing pot is obtained according to the 3rd quality difference value and the 4th quality difference value
Second gravity difference of thing, including：
Obtain the second mass fiducial value between the 3rd quality difference value and the 4th quality difference value, obtain described the
Product between two mass fiducial values and acceleration of gravity, using obtained result as the relatively described substitute of the weighing pot
Second gravity difference.
Optionally, it is described according to first quality difference value institute relative with second quality difference value acquisition weighing pot
The first gravity difference of substitute is stated, including：
The product between first quality difference value and acceleration of gravity is obtained, obtains the first gravity reference value；Obtain institute
The product between the second quality difference value and the acceleration of gravity is stated, obtains the second gravity reference value；Obtain first gravity
Difference between reference value and the second gravity reference value, using obtained result as the relatively described substitute of the weighing pot
The first gravity difference；
It is described that the relative replacement of the weighing pot is obtained according to the 3rd quality difference value and the 4th quality difference value
Second gravity difference of thing, including：
The product between the 3rd quality difference value and acceleration of gravity is obtained, obtains the 3rd gravity reference value；Obtain institute
The product between the 4th quality difference value and the acceleration of gravity is stated, obtains the 4th gravity reference value；Obtain the 3rd gravity
Difference between reference value and the 4th gravity reference value, using obtained result as the relatively described substitute of the weighing pot
The second gravity difference.
Optionally, it is described that the weighing pot is obtained by described according to the first gravity difference and the second gravity difference
First temperature to the aerostatic buoyancy of the second temperature changing value, including：
The difference between the first gravity difference and the second gravity difference is obtained, using obtained result as described in
Weighing pot by aerostatic buoyancy of first temperature to the second temperature changing value.
Optionally, the first state is the weighing pot by sky to the state after high speed gassy；Second shape
State is the weighing pot gassy and stands the state after the first preset time period.
Optionally, the first state is the weighing pot by the state after gassy to high speed emptying gas；It is described
Second state is the weighing pot emptying gas and stands the state after the second preset time period.
On the other hand, there is provided a kind of measurement apparatus of aerostatic buoyancy change, described device include：
First acquisition module, for obtaining the first matter of weighing pot the first temperature in the first state and relative object of reference
Difference is measured, obtains the second quality difference value of the relatively described object of reference of substitute of the weighing pot；
Second acquisition module, for obtaining the weighing pot according to first quality difference value and second quality difference value
First gravity difference of relatively described substitute；
3rd acquisition module, for obtaining weighing pot second temperature in the second condition and relatively described object of reference
The 3rd quality difference value, obtain the 4th quality difference value of the relatively described object of reference of the substitute；
4th acquisition module, for obtaining the weighing pot according to the 3rd quality difference value and the 4th quality difference value
Second gravity difference of relatively described substitute；
5th acquisition module, for obtaining the weighing pot according to the first gravity difference and the second gravity difference
By the changing value of aerostatic buoyancy of first temperature to the second temperature；
Wherein, the object of reference and the substitute are the object of steady quality.
Optionally, second acquisition module, for obtain first quality difference value and second quality difference value it
Between the first mass fiducial value, obtain the product between the first mass fiducial value and acceleration of gravity, the result that will be obtained
The first gravity difference as the relatively described substitute of the weighing pot；
4th acquisition module, for obtaining second between the 3rd quality difference value and the 4th quality difference value
Quality fiducial value, the product between the second mass fiducial value and acceleration of gravity is obtained, using obtained result as described in
Second gravity difference of the relatively described substitute of weighing pot.
Optionally, second acquisition module, for obtaining multiplying between first quality difference value and acceleration of gravity
Product, obtains the first gravity reference value；The product between second quality difference value and the acceleration of gravity is obtained, obtains second
Gravity reference value；Obtain the difference between the first gravity reference value and the second gravity reference value, the result that will be obtained
The first gravity difference as the relatively described substitute of the weighing pot；
4th acquisition module, for obtaining the product between the 3rd quality difference value and acceleration of gravity, obtain
3rd gravity reference value；The product between the 4th quality difference value and the acceleration of gravity is obtained, obtains the 4th gravity ginseng
Examine value；The difference between the 3rd gravity reference value and the 4th gravity reference value is obtained, using obtained result as institute
State the second gravity difference of the relatively described substitute of weighing pot.
Optionally, the 5th acquisition module, for obtain the first gravity difference and the second gravity difference it
Between difference, using change of the obtained result as the weighing pot by aerostatic buoyancy of first temperature to the second temperature
Change value.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
Due to steady quality substitute have preserve quality measurements ability, simultaneously because in measurement process with alternating temperature
Weighing pot depart from, will not be influenceed by weighing pot temperature change, it is possible to accurately preserve its mass value.By using
The mass value of the symmetrical measuring tank of substitute of steady quality at different temperatures is compared method measurement and record, contains weighing pot
The change of aerostatic buoyancy caused by all correlative factors such as the deformation brought due to temperature change, relative to being introduced in correlation technique
Method it is all more fully accurate, resulting result is more true, directly perceived and reliable.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of flow chart of the measuring method of aerostatic buoyancy change provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the measuring method for aerostatic buoyancy change that another embodiment of the present invention provides；
Fig. 3 is a kind of flow chart of the measuring method for aerostatic buoyancy change that another embodiment of the present invention provides；
Fig. 4 is a kind of structural representation of the measurement apparatus for aerostatic buoyancy change that another embodiment of the present invention provides.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is refer to, the flow of the measuring method of the aerostatic buoyancy change provided it illustrates one embodiment of the invention
Figure.As shown in figure 1, the measuring method of the aerostatic buoyancy may comprise steps of：
101：Weighing pot the first temperature in the first state and the first quality difference value of relative object of reference are obtained, obtains and claims
The substitute of measuring tank obtains weighing pot with respect to the second quality difference value of object of reference according to the first quality difference value and the second quality difference value
With respect to the first gravity difference of substitute；
Wherein, object of reference and substitute are the object of steady quality.
As a kind of alternative embodiment, according to the first quality difference value substitute relative with the second quality difference value acquisition weighing pot
The first gravity difference, including：
The first mass fiducial value between the first quality difference value and the second quality difference value is obtained, obtains the first mass fiducial value
Product between acceleration of gravity, using obtained result as first gravity difference of the weighing pot with respect to substitute.
As a kind of alternative embodiment, according to the first quality difference value substitute relative with the second quality difference value acquisition weighing pot
The first gravity difference, including：
The product between the first quality difference value and acceleration of gravity is obtained, obtains the first gravity reference value；Obtain the second matter
The product between difference and acceleration of gravity is measured, obtains the second gravity reference value；Obtain the first gravity reference value and the second gravity
Difference between reference value, using obtained result as first gravity difference of the weighing pot with respect to substitute.
102：Obtain weighing pot second temperature in the second condition and the 3rd quality difference value of relative object of reference, acquisition are replaced
For fourth quality difference value of the thing with respect to object of reference, substituted according to the 3rd quality difference value is relative with the 4th quality difference value acquisition weighing pot
Second gravity difference of thing；
As a kind of alternative embodiment, according to the 3rd quality difference value substitute relative with the 4th quality difference value acquisition weighing pot
The second gravity difference, including：
The second mass fiducial value between the 3rd quality difference value and the 4th quality difference value is obtained, obtains the second mass fiducial value
Product between acceleration of gravity, using obtained result as second gravity difference of the weighing pot with respect to substitute.
As a kind of alternative embodiment, according to the 3rd quality difference value substitute relative with the 4th quality difference value acquisition weighing pot
The second gravity difference, including：
The product between the 3rd quality difference value and acceleration of gravity is obtained, obtains the 3rd gravity reference value；Obtain the 4th matter
The product between difference and acceleration of gravity is measured, obtains the 4th gravity reference value；Obtain the 3rd gravity reference value and the 4th gravity
Difference between reference value, using obtained result as second gravity difference of the weighing pot with respect to substitute.
103：Sky of the weighing pot by the first temperature to second temperature is obtained according to the first gravity difference and the second gravity difference
The changing value of lift of gas.
As a kind of alternative embodiment, weighing pot is obtained by the first temperature according to the first gravity difference and the second gravity difference
To the changing value of the aerostatic buoyancy of second temperature, including：
Obtain the difference between the first gravity difference and the second gravity difference, using obtained result as weighing pot by first
Changing value of the temperature to the aerostatic buoyancy of second temperature.
As a kind of alternative embodiment, above-mentioned first state is weighing pot by sky to the state after high speed gassy；The
Two-state is weighing pot gassy and stands the state after the first preset time period.
As a kind of alternative embodiment, above-mentioned first state is weighing pot by the shape after gassy to high speed emptying gas
State；Second state is weighing pot emptying gas and stands the state after the second preset time period.
In addition, in order to reduce the influence of the symmetrical measuring tank temperature of external environment, so as to reduce the error of buoyancy measurement result, this
The method that embodiment and subsequent embodiment provide preferably is realized in the more stable scene of ambient temperature, so that weighing pot
In first state and the second state, ambient temperature is with respect to stable and consistent, to reduce the symmetrical measuring tank temperature of ambient temperature
The influence of degree.
In summary, the measuring method for the aerostatic buoyancy change that the present embodiment provides, because the substitute of steady quality has
There is the ability for preserving quality measurements, simultaneously because the weighing pot with alternating temperature in measurement process departs from, will not be by weighing pot temperature
Spend the influence of change, it is possible to accurately preserve its mass value.By using the symmetrical measuring tank of the substitute of steady quality not
Mass value under synthermal is compared method measurement and record, and it is all to contain deformation that weighing pot is brought due to temperature change etc.
The change of aerostatic buoyancy caused by correlative factor, it is all more fully accurate relative to the method introduced in correlation technique, it is resulting
Result it is more true, directly perceived and reliable.
One embodiment of the invention provides a kind of measuring method of aerostatic buoyancy change, relative to real shown in above-mentioned Fig. 1
Example is applied, for convenience of description, substitute and object of reference with steady quality are counterweight, and substitute is counterweight 1, and object of reference is weight
Code 2, and exemplified by measuring with reference to balance system, the method provided the present embodiment is described in detail.Wherein, balance system
Including left disk and right disk, when having object on left disk and right disk, balance can show a reading, and the reading is left disk and right disk
On object between quality difference value.When the method that the present embodiment provides is embodied, it is placed on using the counterweight 2 as object of reference
The right disk of balance, weighing pot or substitute illustrate exemplified by being individually positioned in the left disk of balance.Fig. 2 is refer to, the air floats
The measuring method of power change may comprise steps of：
201：Weighing pot the first temperature in the first state and the first quality difference value of relative object of reference are obtained, obtains and claims
Second quality difference value of the substitute of measuring tank with respect to object of reference；
The specific implementation of the step includes but is not limited to the following two kinds situation：
The first situation：First state is weighing pot by sky to the state after high speed gassy：
Weighing pot the first temperature in the first state and the first quality difference value of relative object of reference are obtained, obtains weighing pot
Substitute with respect to object of reference the second quality difference value, including but not limited to by sky weighing pot be inflated with pipeline joint.
When gas is filled with a high speed, the rise of weighing pot temperature, now weighing pot temperature T1, then weighing pot is opened to enter into balance system is recorded
Row weighs.Now, the left disk of balance system is placed with weighing pot, and right disk is placed with counterweight 2, recording balance reading P1.Afterwards again
Weighing pot is outputed, counterweight 1 is opened into balance system, and now, the left disk of balance system is placed with counterweight 1, and right disk is placed with counterweight
2, recording balance reading P2.
In the case of the first of first state, T1 is the first temperature of weighing pot in the first state, and P1 is to claim
For measuring tank in the first state with respect to the first quality difference value of object of reference, P2 is second of substitute with respect to object of reference of weighing pot
Quality difference value.
Second of situation：First state is weighing pot by the state after gassy to high speed emptying gas：
Wherein, weighing pot the first temperature in the first state and the first quality difference value of relative object of reference are obtained, is obtained
The substitute of weighing pot includes but is not limited to the weighing pot and pipeline pair that will be filled with gas with respect to the second quality difference value of object of reference
Tap into capable deflation.When gas is released at a high speed, weighing pot temperature reduces, and records now weighing pot temperature T1 ', then weighing pot is opened
Enter balance system to be weighed.Now, the left disk of balance system is placed with weighing pot, and right disk is placed with counterweight 2, and recording balance is read
Number P1 '.Weighing pot is outputed again afterwards, counterweight 1 is opened into balance system, and now, the left disk of balance system is placed with counterweight 1, right
Disk is placed with counterweight 2, recording balance reading P2 '.
In the case of the first of first state, T1 ' is the first temperature of weighing pot in the first state, and P1 ' is
For weighing pot in the first state with respect to the first quality difference value of object of reference, P2 ' is the substitute of weighing pot with respect to object of reference
Second quality difference value.
202：The first mass fiducial value between the first quality difference value and the second quality difference value is obtained, obtains the first mass ratio
Compared with the product between value and acceleration of gravity, using obtained result as first gravity difference of the weighing pot with respect to substitute；
Wherein, when obtaining the first mass fiducial value between the first quality difference value and the second quality difference value, including it is but unlimited
Subtract each other in by the first quality difference value and the second quality difference value, obtained result is the first mass fiducial value.
For example, for the first situation of above-mentioned first state, obtain between the first quality difference value and the second quality difference value
The first mass fiducial value be P1-P2, it is (P1- to obtain the product between the first mass fiducial value and acceleration of gravity
P2) * g, wherein g are acceleration of gravity, then weighing pot is (P1- with respect to the first gravity difference of substitute in the first temperature T1
P2)*g。
For example, for second of situation of above-mentioned first state, obtain between the first quality difference value and the second quality difference value
The first mass fiducial value be P1 '-P2 ', obtain the product between the first mass fiducial value and acceleration of gravity be (P1 '-
P2 ') * g, then weighing pot is (P1 '-P2 ') * g with respect to the first gravity difference of substitute in the first temperature T1.
It should be noted that above-mentioned steps 201 and step 202 correspond to the step 101 shown in Fig. 1.
203：Obtain weighing pot second temperature in the second condition and the 3rd quality difference value of relative object of reference, acquisition are replaced
For fourth quality difference value of the thing with respect to object of reference；
For two kinds of situations of first state in above-mentioned steps 201, second state also includes but is not limited to the following two kinds
Situation：
The first situation：For the first situation of first state in above-mentioned steps 201, the second state is full of for weighing pot
State after gas and the first preset time period of standing；
Weighing pot second temperature in the second condition and the 3rd quality difference value of relative object of reference are obtained, obtains substitute
With respect to the 4th quality difference value of object of reference, high temperature weighing pot is including but not limited to stood into the first preset time period, until temperature
Reduce, record now weighing pot temperature T2, weighing pot is opened weighed into balance system again.Now, a left side for balance system
Disk is placed with weighing pot, and right disk is placed with counterweight 2, recording balance reading P3.Weighing pot is outputed again afterwards, counterweight 1 is opened into day
Flat system, now, the left disk of balance system are placed with counterweight 1, and right disk is placed with counterweight 2, recording balance reading P4.
In the case of the first of the second state, T2 is the second temperature of weighing pot in the second condition, and P3 is to claim
For measuring tank in the second condition with respect to the 3rd quality difference value of object of reference, it is the 4th of poor quality with respect to object of reference that P4 is substitute
Value.
Second of situation：For second of situation of first state in above-mentioned steps 201, the second state is vented for weighing pot
State after gas and the second preset time period of standing；
Weighing pot second temperature in the second condition and the 3rd quality difference value of relative object of reference are obtained, obtains substitute
With respect to the 4th quality difference value of object of reference, including but not limited to by emptying gas be in low temperature weighing pot stand second it is default when
Between section, until temperature raise, record now weighing pot temperature T2 ', then weighing pot is opened and weighed into balance system.Now,
The left disk of balance system is placed with weighing pot, and right disk is placed with counterweight 2, recording balance reading P3 '.Weighing pot is opened again afterwards
Go out, counterweight 1 is opened into balance system, and now, the left disk of balance system is placed with counterweight 1, and right disk is placed with counterweight 2, recording balance
Reading P4 '.
In the case of second of the second state, T2 ' is the second temperature of weighing pot in the second condition, and P3 ' is
For weighing pot in the second condition with respect to the 3rd quality difference value of object of reference, P4 ' is fourth mass of the substitute with respect to object of reference
Difference.
It should be noted that the present embodiment is not to the specific time of above-mentioned first preset time period and the second preset time period
Length is defined, for example, 10 minutes, 20 minutes, 30 minutes etc..
204：The second mass fiducial value between the 3rd quality difference value and the 4th quality difference value is obtained, obtains the second mass ratio
Compared with the product between value and acceleration of gravity, using obtained result as second gravity difference of the weighing pot with respect to substitute；
Wherein, when obtaining the second mass fiducial value between the 3rd quality difference value and the 4th quality difference value, including it is but unlimited
In the 3rd quality difference value is subtracted each other with the 4th quality difference value, obtained result is the second mass fiducial value.
For example, for the first situation of above-mentioned second state, obtain between the 3rd quality difference value and the 4th quality difference value
The second mass fiducial value be P3-P4, it is (P3- to obtain the product between the second mass fiducial value and acceleration of gravity
P4) * g, then weighing pot is (P3-P4) * g with respect to the second gravity difference of substitute in second temperature T2.
For example, for second of situation of above-mentioned second state, obtain between the 3rd quality difference value and the 4th quality difference value
The second mass fiducial value be P3 '-P4 ', obtain the second mass ratio between the 3rd quality difference value and the 4th quality difference value compared with
Value is (P3 '-P4 ') * g, then weighing pot is (P3 '-P4 ') * with respect to the second gravity difference of substitute in second temperature T2
g。
It should be noted that above-mentioned steps 203 and step 204 correspond to the step 102 shown in Fig. 1.
205：Sky of the weighing pot by the first temperature to second temperature is obtained according to the first gravity difference and the second gravity difference
The changing value of lift of gas.
Alternatively, according to the first gravity difference and the second gravity difference obtain weighing pot by the first temperature to
The changing value of the aerostatic buoyancy of second temperature, include but is not limited to：
Obtain the difference between the first gravity difference and the second gravity difference, using obtained result as weighing pot by first
Changing value of the temperature to the aerostatic buoyancy of second temperature.
For example, for above-mentioned first state and the first situation of the second state, the first gravity difference and the second weight are obtained
Difference between power difference is：
(P1-P2) * g- (P3-P4) * g=(P1-P2-P3+P4) * g；
(P1-P2-P3+P4) * g are changing value of the weighing pot by the first temperature T1 to second temperature T2 aerostatic buoyancy.
For example, for above-mentioned first state and second of situation of the second state, the first gravity difference and the second weight are obtained
Difference between power difference is：
(P1 '-P2 ') * g- (P3 '-P4 ') * g=(P1 '-P2 '-P3 '+P4 ') * g；
(P1 '-P2 '-P3 '+P4 ') * g are change of the weighing pot by the first temperature T1 to second temperature T2 aerostatic buoyancy
Value.
It should be noted that above-mentioned steps 205 correspond to the step 103 shown in Fig. 1.
In summary, the measuring method for the aerostatic buoyancy change that the present embodiment provides, because the substitute of steady quality has
There is the ability for preserving quality measurements, simultaneously because the weighing pot with alternating temperature in measurement process departs from, will not be by weighing pot temperature
Spend the influence of change, it is possible to accurately preserve its mass value.By using the symmetrical measuring tank of the substitute of steady quality not
Mass value under synthermal is compared method measurement and record, and it is all to contain deformation that weighing pot is brought due to temperature change etc.
The change of aerostatic buoyancy caused by correlative factor, it is all more fully accurate relative to the method introduced in correlation technique, it is resulting
Result it is more true, directly perceived and reliable.
One embodiment of the invention provides a kind of measuring method of aerostatic buoyancy change, relative to real shown in above-mentioned Fig. 1
Example is applied, for convenience of description, substitute and object of reference with steady quality are counterweight, and substitute is counterweight 1, and object of reference is weight
Code 2, and exemplified by measuring with reference to balance system, the method provided the present embodiment is described in detail.Wherein, balance system
Including left disk and right disk, when having object on left disk and right disk, balance can show a reading, and the reading is left disk and right disk
On object between quality difference value.When the method that the present embodiment provides is embodied, it is placed on using the counterweight 2 as object of reference
The right disk of balance, weighing pot or substitute illustrate exemplified by being individually positioned in the left disk of balance.Fig. 3 is refer to, the air floats
The measuring method of power change may comprise steps of：
301：Weighing pot the first temperature in the first state and the first quality difference value of relative object of reference are obtained, obtains and claims
Second quality difference value of the substitute of measuring tank with respect to object of reference；
The implementation of the step 301 is identical with the principle of above-mentioned steps 201, specifically refers to above-mentioned steps 201, herein
Repeat no more.
302：The product between the first quality difference value and acceleration of gravity is obtained, obtains the first gravity reference value；Obtain the
Product between two quality difference values and acceleration of gravity, obtain the second gravity reference value；Obtain the first gravity reference value and second
Difference between gravity reference value, using obtained result as first gravity difference of the weighing pot with respect to substitute；
For example, for the first situation of above-mentioned first state, obtain between the first quality difference value and acceleration of gravity
Product, it is P1*g to obtain the first gravity reference value；The product between the second quality difference value and acceleration of gravity is obtained, obtains
Two gravity reference values are P2*g；The difference obtained between the first gravity reference value and the second gravity reference value is P1*g-P2*
G, P1*g-P2*g are weighing pot in first gravity difference of first temperature with respect to substitute.
For example, for second of situation of above-mentioned first state, obtain between the first quality difference value and acceleration of gravity
Product, it is P1 ' * g to obtain the first gravity reference value；The product between the second quality difference value and acceleration of gravity is obtained, is obtained
First gravity reference value is P2 ' * g；It is P1 ' * to obtain the difference between the first gravity reference value and the second gravity reference value
G-P2 ' * g, P1 ' * g-P2 ' * g are weighing pot in first gravity difference of first temperature with respect to substitute.
It should be noted that above-mentioned steps 301 and step 302 correspond to the step 101 shown in Fig. 1.
303：Obtain weighing pot second temperature in the second condition and the 3rd quality difference value of relative object of reference, acquisition are replaced
For fourth quality difference value of the thing with respect to object of reference；
The implementation of the step 303 is identical with the principle of above-mentioned steps 203, specifically refers to above-mentioned steps 201, herein
Repeat no more.
304：The product between the 3rd quality difference value and acceleration of gravity is obtained, obtains the 3rd gravity reference value；Obtain the
Product between four quality difference values and acceleration of gravity, obtain the 4th gravity reference value；Obtain the 3rd gravity reference value and the 4th
Difference between gravity reference value, using obtained result as second gravity difference of the weighing pot with respect to substitute；
For example, for the first situation of above-mentioned second state, obtain between the 3rd quality difference value and acceleration of gravity
Product, it is P3*g to obtain the 3rd gravity reference value；The product between the 4th quality difference value and acceleration of gravity is obtained, obtains
Four gravity reference values are P4*g；The difference obtained between the 3rd gravity reference value and the 4th gravity reference value is P3*g-P4*
G, P3*g-P4*g are weighing pot in second gravity difference of the second temperature with respect to substitute.
For example, for second of situation of above-mentioned second state, obtain between the 3rd quality difference value and acceleration of gravity
Product, it is P3 ' * g to obtain the 3rd gravity reference value；The product between the 4th quality difference value and acceleration of gravity is obtained, is obtained
4th gravity reference value is P4 ' * g；The difference obtained between the 3rd gravity reference value and the 4th gravity reference value is P3 ' *
G-P4 ' * g, P3 ' * g-P4 ' * g are weighing pot in second gravity difference of the second temperature with respect to substitute.
It should be noted that above-mentioned steps 303 and step 404 correspond to the step 102 shown in Fig. 1.
305：Sky of the weighing pot by the first temperature to second temperature is obtained according to the first gravity difference and the second gravity difference
The changing value of lift of gas.
Alternatively, according to the first gravity difference and the second gravity difference obtain weighing pot by the first temperature to
The changing value of the aerostatic buoyancy of second temperature, include but is not limited to：
Obtain the difference between the first gravity difference and the second gravity difference, using obtained result as weighing pot by first
Changing value of the temperature to the aerostatic buoyancy of second temperature.
For example, for above-mentioned first state and the first situation of the second state, the first gravity difference and the second weight are obtained
Difference between power difference is：
P1*g-P2*g- (P3*g-P4*g)=(P1-P2-P3+P4) * g；
(P1-P2-P3+P4) * g are changing value of the weighing pot by the first temperature T1 to second temperature T2 aerostatic buoyancy.
For example, for above-mentioned first state and second of situation of the second state, the first gravity difference and the second weight are obtained
Difference between power difference is：
P1 ' * g-P2 ' * g- (P3 ' * g-P4 ' * g)=(P1 '-P2 '-P3 '+P4 ') * g；
(P1 '-P2 '-P3 '+P4 ') * g are change of the weighing pot by the first temperature T1 to second temperature T2 aerostatic buoyancy
Value.
It should be noted that above-mentioned steps 305 correspond to the step 103 shown in Fig. 1.
In summary, the measuring method for the aerostatic buoyancy change that the present embodiment provides, because the substitute of steady quality has
There is the ability for preserving quality measurements, simultaneously because the weighing pot with alternating temperature in measurement process departs from, will not be by weighing pot temperature
Spend the influence of change, it is possible to accurately preserve its mass value.By using the symmetrical measuring tank of the substitute of steady quality not
Mass value under synthermal is compared method measurement and record, and it is all to contain deformation that weighing pot is brought due to temperature change etc.
The change of aerostatic buoyancy caused by correlative factor, it is all more fully accurate relative to the method introduced in correlation technique, it is resulting
Result it is more true, directly perceived and reliable.
Fig. 4 is refer to, the structure of the measurement apparatus of the aerostatic buoyancy change provided it illustrates one embodiment of the invention
Schematic diagram.As shown in figure 4, the measurement apparatus of aerostatic buoyancy change includes：First acquisition module 401, the second acquisition module
402nd, the 3rd acquisition module 403, the 4th acquisition module 404 and the 5th acquisition module 405.
Wherein, the first acquisition module 401, for obtaining weighing pot the first temperature in the first state and relative object of reference
The first quality difference value, obtain second quality difference value of the substitute with respect to object of reference of weighing pot；
Second acquisition module 402, for being obtained according to the first quality difference value with the second quality difference value, weighing pot is relative to be substituted
First gravity difference of thing；
3rd acquisition module 403, for obtaining the of weighing pot second temperature in the second condition and relative object of reference
Three quality difference values, obtain fourth quality difference value of the substitute with respect to object of reference；
4th acquisition module 404, for being obtained according to the 3rd quality difference value with the 4th quality difference value, weighing pot is relative to be substituted
Second gravity difference of thing；
5th acquisition module 405, for obtaining weighing pot by the first temperature according to the first gravity difference and the second gravity difference
Spend the changing value of the aerostatic buoyancy of second temperature；
Wherein, object of reference and substitute are the object of steady quality.
Optionally, the second acquisition module 402, for obtaining the first matter between the first quality difference value and the second quality difference value
Fiducial value is measured, obtains the product between the first mass fiducial value and acceleration of gravity, obtained result is relative as weighing pot
First gravity difference of substitute；
4th acquisition module 404, for obtain the second mass ratio between the 3rd quality difference value and the 4th quality difference value compared with
Value, the product between the second mass fiducial value and acceleration of gravity is obtained, using obtained result as the relative substitute of weighing pot
The second gravity difference.
Optionally, the second acquisition module 402, for obtaining the product between the first quality difference value and acceleration of gravity, obtain
To the first gravity reference value；The product between the second quality difference value and acceleration of gravity is obtained, obtains the second gravity reference value；Obtain
The difference between the first gravity reference value and the second gravity reference value is taken, using obtained result as the relative substitute of weighing pot
The first gravity difference；
4th acquisition module 404, for obtaining the product between the 3rd quality difference value and acceleration of gravity, it is triple to obtain the
Power reference value；The product between the 4th quality difference value and acceleration of gravity is obtained, obtains the 4th gravity reference value；It is triple to obtain
Difference between power reference value and the 4th gravity reference value, using obtained result as second gravity of the weighing pot with respect to substitute
Difference.
Optionally, the 5th acquisition module 405, for obtaining the difference between the first gravity difference and the second gravity difference,
Using obtained result as weighing pot by the first temperature to second temperature aerostatic buoyancy changing value.
In summary, the measurement apparatus for the aerostatic buoyancy change that the present embodiment provides, because the substitute of steady quality has
There is the ability for preserving quality measurements, simultaneously because the weighing pot with alternating temperature in measurement process departs from, will not be by weighing pot temperature
Spend the influence of change, it is possible to accurately preserve its mass value.By using the symmetrical measuring tank of the substitute of steady quality not
Mass value under synthermal is compared method measurement and record, and it is all to contain deformation that weighing pot is brought due to temperature change etc.
The change of aerostatic buoyancy caused by correlative factor, it is all more fully accurate relative to the method introduced in correlation technique, it is resulting
Result it is more true, directly perceived and reliable.
It should be noted that the step sequence number in above method embodiment does not represent the sequencing of step execution, it is real
In the application of border, above-mentioned steps can be performed with random order.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description
Specific work process, may be referred to the corresponding process in embodiment of the method, will not be repeated here.
One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment
To complete, by program the hardware of correlation can also be instructed to complete, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of measuring method of aerostatic buoyancy change, it is characterised in that methods described includes：
Weighing pot the first temperature in the first state and the first quality difference value of relative object of reference are obtained, obtains the weighing pot
The relatively described object of reference of substitute the second quality difference value, obtained according to first quality difference value and second quality difference value
Take the first gravity difference of the relatively described substitute of the weighing pot；
Weighing pot second temperature in the second condition and the 3rd quality difference value of relatively described object of reference are obtained, obtains institute
The 4th quality difference value of the relatively described object of reference of substitute is stated, is obtained according to the 3rd quality difference value with the 4th quality difference value
Take the second gravity difference of the relatively described substitute of the weighing pot；
Obtained according to the first gravity difference and the second gravity difference described in the weighing pot arrives by first temperature
The changing value of the aerostatic buoyancy of second temperature；
Wherein, the object of reference and the substitute are the object of steady quality.
2. according to the method for claim 1, it is characterised in that described according to first quality difference value and second matter
The first gravity difference that difference obtains the relatively described substitute of weighing pot is measured, including：
The first mass fiducial value between first quality difference value and second quality difference value is obtained, obtains first matter
Product between amount fiducial value and acceleration of gravity, first using obtained result as the relatively described substitute of the weighing pot
Gravity difference；
It is described that the relative substitute of the weighing pot is obtained according to the 3rd quality difference value and the 4th quality difference value
Second gravity difference, including：
The second mass fiducial value between the 3rd quality difference value and the 4th quality difference value is obtained, obtains second matter
Product between amount fiducial value and acceleration of gravity, second using obtained result as the relatively described substitute of the weighing pot
Gravity difference.
3. according to the method for claim 1, it is characterised in that described according to first quality difference value and second matter
The first gravity difference that difference obtains the relatively described substitute of weighing pot is measured, including：
The product between first quality difference value and acceleration of gravity is obtained, obtains the first gravity reference value；Obtain described
Product between two quality difference values and the acceleration of gravity, obtain the second gravity reference value；Obtain first gravity reference
Be worth the difference between the second gravity reference value, the using obtained result as the relatively described substitute of the weighing pot
One gravity difference；
It is described that the relative substitute of the weighing pot is obtained according to the 3rd quality difference value and the 4th quality difference value
Second gravity difference, including：
The product between the 3rd quality difference value and acceleration of gravity is obtained, obtains the 3rd gravity reference value；Obtain described
Product between four quality difference values and the acceleration of gravity, obtain the 4th gravity reference value；Obtain the 3rd gravity reference
Be worth the difference between the 4th gravity reference value, the using obtained result as the relatively described substitute of the weighing pot
Two gravity differences.
4. the method according to any claim in claims 1 to 3, it is characterised in that described according to first weight
Power difference obtains aerostatic buoyancy of the weighing pot by first temperature to the second temperature with the second gravity difference
Changing value, including：
The difference between the first gravity difference and the second gravity difference is obtained, using obtained result as the weighing
Tank by aerostatic buoyancy of first temperature to the second temperature changing value.
5. according to the method for claim 1, it is characterised in that the first state is that the weighing pot is filled by empty to high speed
State after full gas；Second state is the weighing pot gassy and stands the state after the first preset time period.
6. according to the method for claim 1, it is characterised in that the first state be the weighing pot by gassy to
State after high speed emptying gas；After second state is the weighing pot emptying gas and the second preset time period of standing
State.
7. a kind of measurement apparatus of aerostatic buoyancy change, it is characterised in that described device includes：
First acquisition module, first for obtaining weighing pot the first temperature in the first state and relative object of reference are of poor quality
Value, obtain the second quality difference value of the relatively described object of reference of substitute of the weighing pot；
Second acquisition module is relative for obtaining the weighing pot with second quality difference value according to first quality difference value
First gravity difference of the substitute；
3rd acquisition module, for obtaining the of weighing pot second temperature in the second condition and relatively described object of reference
Three quality difference values, obtain the 4th quality difference value of the relatively described object of reference of the substitute；
4th acquisition module is relative for obtaining the weighing pot with the 4th quality difference value according to the 3rd quality difference value
Second gravity difference of the substitute；
5th acquisition module, for obtaining the weighing pot by institute according to the first gravity difference and the second gravity difference
The first temperature is stated to the changing value of the aerostatic buoyancy of the second temperature；
Wherein, the object of reference and the substitute are the object of steady quality.
8. device according to claim 7, it is characterised in that second acquisition module, for obtaining first matter
The first mass fiducial value between difference and second quality difference value is measured, the first mass fiducial value is obtained and accelerates with gravity
Product between degree, the first gravity difference using obtained result as the relatively described substitute of the weighing pot；
4th acquisition module, for obtaining the second mass between the 3rd quality difference value and the 4th quality difference value
Fiducial value, the product between the second mass fiducial value and acceleration of gravity is obtained, using obtained result as the weighing
Second gravity difference of the relatively described substitute of tank.
9. device according to claim 7, it is characterised in that second acquisition module, for obtaining first matter
The product between difference and acceleration of gravity is measured, obtains the first gravity reference value；Obtain second quality difference value with it is described heavy
Product between power acceleration, obtain the second gravity reference value；The first gravity reference value is obtained with second gravity to join
The difference between value is examined, the first gravity difference using obtained result as the relatively described substitute of the weighing pot；
4th acquisition module, for obtaining the product between the 3rd quality difference value and acceleration of gravity, obtain the 3rd
Gravity reference value；The product between the 4th quality difference value and the acceleration of gravity is obtained, obtains the 4th gravity reference value；
The difference between the 3rd gravity reference value and the 4th gravity reference value is obtained, using obtained result as the weighing
Second gravity difference of the relatively described substitute of tank.
10. the device according to any claim in claim 7 to 9, it is characterised in that the 5th acquisition module,
For obtaining the difference between the first gravity difference and the second gravity difference, using obtained result as the weighing
Tank by aerostatic buoyancy of first temperature to the second temperature changing value.
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