CN108801834A - A kind of assay method of automatic weighing system and loss on ignition - Google Patents
A kind of assay method of automatic weighing system and loss on ignition Download PDFInfo
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- CN108801834A CN108801834A CN201810398890.4A CN201810398890A CN108801834A CN 108801834 A CN108801834 A CN 108801834A CN 201810398890 A CN201810398890 A CN 201810398890A CN 108801834 A CN108801834 A CN 108801834A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
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Abstract
The present invention relates to the assay methods of a kind of automatic weighing system and loss on ignition, wherein, automatic weighing system includes, support platform, weighing unit, sample placement unit, manipulator, data transmission unit, data processing unit and control unit, wherein, described control unit shifts sample to be tested for controlling the manipulator between weighing unit and sample placement unit, the data that the data transmission unit is used to weigh weighing unit export, and it is sent to data processing unit, the weighing unit, sample placement unit is arranged at manipulator in the support platform.Sample to be tested is weighed using Weighing system provided by the invention, improves weighing rate, while improving the accuracy of weighing result.
Description
Technical field
The invention belongs to sample weighing fields, more particularly to the assay method of a kind of automatic weighing system and loss on ignition.
Background technology
Particular assay project when loss on ignition is sample composition quantitative analysis typically refers to carbon dioxide and chemical combination in sample
Volatile ingredient under the high temperature such as water.The essence of loss on ignition result be exactly sample at high temperature before and after calcination example weight reduction
Rate.Assay method is the weight for weighing crucible and sample respectively with assay balance first, then sample is put into crucible again, one
And it is put into calcination in high temperature furnace, the weight of crucible and remaining sample after calcination is then weighed again, and then calculates sample at high temperature
The weight of volatilization, it is exactly loss on ignition result that the weight of required volatilization, which accounts for the score of example weight,.Therefore, the method for measuring loss on ignition
In measuring process be mainly three weighing processes to sample after crucible, sample to be tested and calcination and crucible resultant.
Currently, the raising of the demand due to construction sites such as buildings, higher and higher to the physical property requirements of cement, it is right
The accuracy requirement of the measurement of the loss on ignition of the materials such as cement or its raw material is higher and higher.In the prior art, frequently with very much
One of balance the quality of each component in loss on ignition continuous mode is weighed, however, accuracy be a ten thousandth analysis day
Flat reading is 4 after decimal point, and, the calculating of the loss on ignition of a sample need to usually carry out 3 readings, and, routine test
In, it usually needs at least 3 times repetitions of setting are tested, and loss on ignition of multiple average values for repeating experiment as sample to be tested is sought, then
Person, it is artificial to read, it is easy to there is the phenomenon that mistake of statistics, affects the accuracy of testing result, and, waste testing crew
Time.
Invention content
It is a primary object of the present invention to provide a kind of assay method of automatic weighing system and loss on ignition, improve sample
The efficiency and accuracy that product weigh carry out the measurement of loss on ignition using this method, puma manipulator can be used automatically by crucible
It is transferred on assay balance from specific position, after weighing and recording weight, then the crucible on balance is moved back to home position automatically.
According to the quantity of crucible to be weighed, multiple specific positions can be set, multiple crucibles are automatically determined to realize, and then improved
The efficiency of sample weighing and the accuracy of result of calculation in loss on ignition continuous mode.
The object of the invention to solve the technical problems is realized using following technical scheme.
A kind of automatic weighing system proposed according to the present invention, including, support platform, weighing unit, sample placement unit,
Manipulator, data transmission unit, data processing unit and control unit, wherein described control unit is for controlling the machinery
Hand shifts sample to be tested between weighing unit and sample placement unit, and the data transmission unit is for claiming weighing unit
The data output taken, and it is sent to data processing unit, the weighing unit, sample placement unit and manipulator are arranged at institute
It states in support platform.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, a kind of automatic weighing system above-mentioned, wherein weighing unit, sample placement unit and the manipulator
It is each attached in the support platform.
Preferably, the support platform is divided into four by a kind of automatic weighing system above-mentioned using virtual cross wire
A part, it is horizontally and vertically, to regard four parts as four quadrants, the weighing unit to define the cross wire
Be fixed in first quartile, the sample placement unit is fixed in the second quadrant, the manipulator be fixed on third quadrant with
Between fourth quadrant.
Preferably, a kind of automatic weighing system above-mentioned, wherein the weighing unit includes induction component, the induction
Component be used to incude manipulator close to or away from and then the door for controlling weighing unit is turned on and off.
Preferably, a kind of automatic weighing system above-mentioned, wherein the sample placement unit includes specimen holder and fixation
Platform.
Preferably, a kind of automatic weighing system above-mentioned, wherein the specimen holder includes multiple regularly arranged location holes,
The location hole is for placing sample to be tested.
The object of the invention to solve the technical problems is also realized using technical solution below.
A kind of automatic weighing method proposed according to the present invention, using the automatic weighing system described in any one of aforementioned,
The weighing technique includes initial markers:The initial markers of sample to be tested are inputted in data processing unit;Sample weighing:Control
The sample to be tested is transferred to weighing unit by unit control machinery hand from sample placement unit, is weighed, and number to be measured is obtained
According to data transmission:The testing data is transmitted to data processing unit by data transmission unit;Data processing:At data
Reason unit handles the testing data.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, a kind of automatic weighing method above-mentioned, wherein the sample to be tested includes at least the first sample to be tested
With the second sample to be tested, the sample placement unit includes at least the first anchor point and the second anchor point, and described first waits for test sample
Product are positioned over first anchor point, and second sample to be tested is positioned over second anchor point, the sample weighing step
Including control unit control machinery hand is moved along at least first path and the second path, is obtained the first testing data and second and is waited for
Measured data, wherein first path is that manipulator captures the first sample to be tested from the first anchor point, and the first sample to be tested is placed in
Weighing unit weighs, and obtains the first testing data, then the first sample to be tested is taken out out of weighing unit, puts back to the first positioning
At point, the second path is that manipulator captures the second sample to be tested from the second anchor point, and it is single that the second sample to be tested is placed in weighing
Member weighs, and obtains the second testing data, then the second sample to be tested is taken out out of weighing unit, puts back at the second anchor point.
Preferably, a kind of automatic weighing method above-mentioned, wherein the data processing includes data storage, data point
Analysis, and/or data calculate.
The object of the invention to solve the technical problems is also realized using technical solution below.
A kind of assay method of the sample loss on ignition proposed according to the present invention, including, step 1:The empty crucible is carried out
First calcination after the completion of the first calcination, is taken out, is cooled to room temperature, weighs, and the first mass of the empty crucible is obtained;Step 2:
Before sample to be tested is placed in sky crucible, the second mass of the empty crucible is weighed;Step 3:Sample to be tested is placed in the empty earthenware
In crucible, weighs, obtain the first gross mass of sample to be tested and crucible;Step 4:The crucible for filling sample to be tested is carried out second
Calcination after the completion of the second calcination, is taken out, is cooled to room temperature, weighs, obtain second total matter of sample to be tested and crucible after calcination
Amount, then, and LOI=((M1-Q2)-(M2-Q1))/(M1-Q2), wherein M1For first total matter of sample to be tested in step 3 and crucible
Amount;M2For the second gross mass of sample to be tested after calcination in step 4 and crucible;Q1For the first mass of the hollow crucible of step 1;
Q2For the second mass of the hollow crucible of step 2.
By above-mentioned technical proposal, a kind of assay method of automatic weighing system and loss on ignition provided by the invention, at least
With following advantages:
1, the present invention provides a kind of automatic weighing system, the accuracy for weighing efficiency and weighing result is improved.
In the prior art, the accuracy of weighing result is improved frequently with the higher assay balance of precision, for example, very much
One of assay balance.However, while improving weighing result accuracy, needs result counting on after decimal point four, increase
In the case that the complexity for having added result to count, especially sample size are more, the testing crew time is occupied, and be easy to cause
Mistake of statistics.
Include weighing unit, sample placement unit, manipulator, data transmission unit, data the present invention provides one kind
The automatic weighing device of processing unit etc. can carry out automatic weighing to sample, and weighing result is automatically transmitted to data processing
Unit, weighing result are counted, are stored, are calculated, and the accuracy of weighing result is improved, meanwhile, it can be to multiple samples
Consecutive weighings are carried out, weighing efficiency is improved.
2, automatic weighing system provided by the invention is more applicable for the weighing of example weight in loss on ignition continuous mode.
Automatic weighing system provided by the invention realizes that sample is weighing in such a way that manipulator captures sample to be tested
Transfer between unit and sample placement unit.In the continuous mode of loss on ignition, sample to be tested is in crucible, is more conducive to
Manipulator treats the crawl and placement of weighed object.
3, the assay method of loss on ignition provided by the invention improves the accuracy of testing result.
The assay method of existing loss on ignition has ignored the mass change of empty crucible empty crucible during placing after calcination, shadow
The accuracy of measurement result is rung.The assay method of loss on ignition provided by the invention eliminates during empty crucible is placed after calcination
The mass change of empty crucible improves the accuracy of loss on ignition measurement result.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as.
Description of the drawings
Fig. 1 is a kind of schematic diagram of automatic weighing system provided in an embodiment of the present invention.
Wherein, 1 support platform, 2 weighing units, 3 sample placement units, 4 manipulators, 5 data processings and control unit.
Fig. 2 is a kind of schematic diagram of sample placement unit provided in an embodiment of the present invention.
Fig. 3 is the schematic diagram of loss on ignition assay method provided in an embodiment of the present invention.
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, it is specific to the assay method of a kind of automatic weighing system and loss on ignition that propose according to the present invention
Embodiment, structure, feature and its effect are described in detail as after.In the following description, different " embodiment " or " implementation
What example " referred to is not necessarily the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by any
Suitable form combines.
Embodiment 1
A kind of automatic weighing system is present embodiments provided, as shown in Figure 1, including support platform 1, weighing unit 2, sample
Product placement unit 3, manipulator 4, data transmission unit, data processing unit and control unit 5, wherein described control unit is used
Sample to be tested is shifted between weighing unit and sample placement unit in controlling the manipulator, the data transmission unit is used
In the data output for weighing weighing unit, and it is sent to data processing unit, the weighing unit, sample placement unit and machine
Tool hand is arranged in the support platform.
Support platform is used to for Weighing system provide horizontal support surface, be especially weighing unit, sample placement unit and
Manipulator provides same level supporting surface, ensures the stability of system each unit during sample weighing, and then improve and weigh knot
The accuracy of fruit.It should be noted that the present invention is not specifically limited the parameters such as the material of support platform, thickness, size, need
Stable horizontal support surface is provided for weighing unit, sample placement unit and manipulator, and, guarantee sample to be tested placement process,
Manipulator is by the stability of sample to be tested horizontal support surface in weighing unit and sample placement unit transfer process.
Preferably, weighing unit is electronic analytical balance, and further preferably accuracy is the assay balance of a ten thousandth.
Weighing unit has data output interface, can be spread out of weighing data by data transmission unit.Preferably, the interface
For RS-232 interface, after being connect with data receiver, weighing data can be transmitted to data receiver list by data transmission element
Member.
It should be noted that data processing unit can be realized with control unit by same electronic component, such as the ends PC terminal
Equipment.
It should be noted that the type that the present embodiment treats weighing sample is not specifically limited.Preferably, sample to be weighed
Product are needed to carry out accurately capturing by manipulator, movement, be placed.
Embodiment 2
In conjunction with previous embodiment, the present embodiment further provides weighing unit, sample placement unit, manipulator and support
The connection relation of platform.
Preferably, the weighing unit, sample placement unit and manipulator are each attached in support platform.The present invention provides
Automatic weighing device, sample to be tested is shifted between sample placement unit and weighing unit using manipulator, and, need to will wait for
Sample is placed on the calibration position (such as weighing the center of table top) of weighing unit, and just advantageous weigh accurately is counted
According to, and the motion path of manipulator by control unit control, setting, the present embodiment weighing quantity fixing unit, sample placement unit with
Sample to be tested is more favorably realized in position of the manipulator in support platform using the motion path of control unit setting manipulator
Movement between weighing unit and sample placement unit.It should be noted that the present embodiment weighing unit, sample place list
Member is not particularly limited with fixed form of the manipulator in support platform.For example, can be realized by retaining elements such as screws.
It should be noted that the motion path of manipulator is according in sample placement unit between sample to be tested and weighing unit
Position relationship be determined.When being placed with multiple samples to be tested in sample placement unit, different sample to be tested room machine hands
Motion path it is different.
The present embodiment further provides a kind of weighing unit, sample placement unit, manipulator consolidating in support platform
Positioning is set.
The support platform is divided by four parts using virtual cross wire, it is horizontal axis to define the cross wire
And the longitudinal axis, regard four parts as four quadrants, the weighing unit is fixed in first quartile, and the sample is placed single
Member is fixed in the second quadrant, and the manipulator is fixed between third quadrant and fourth quadrant.
Using the dividing mode of quadrant in mathematics, using virtual horizontal axis and the longitudinal axis, by support platform be divided into first quartile,
Second quadrant, third quadrant and fourth quadrant, the weighing unit are fixed in first quartile, and the sample placement unit is fixed
In the second quadrant, the manipulator is fixed between third quadrant and fourth quadrant.By weighing unit and sample placement unit
It is fixed in support platform, manipulator is placed between weighing unit and sample placement unit, position relationship can be found in figure side by side
1, it is more conducive to and is shifted sample between weighing unit and sample placement unit using manipulator.On it should be noted that
The area of " four parts " (or four quadrants) for stating may be the same or different, specifically, can be according to weighing unit, sample
The relative size of product placement unit and manipulator is adjusted.
Embodiment 3
In conjunction with aforementioned one or more embodiments, the present embodiment further provides a kind of structure of weighing unit.
Weighing unit provided in this embodiment includes induction component, the induction component be used to incude the close of manipulator or
It is separate, and then the door for controlling weighing unit is turned on and off.
Under normal conditions, weighing unit is provided with hurricane globe door, to prevent the influence of wind weighing result accuracy.This reality
It applies example and induction component, the open and close for controlling hurricane globe door, specifically, when manipulator is close is set in weighing unit
When hurricane globe door, induction component controls hurricane globe door is opened, and manipulator puts sample to be tested in weighing unit into, is placed and is completed
Afterwards, manipulator is closed far from hurricane globe door, induction component controls hurricane globe door, completes to weigh.
Embodiment 4
In conjunction with aforementioned one or more embodiments, a kind of structure of sample placement unit is present embodiments provided.
The sample placement unit includes specimen holder and fixed station, wherein fixed station is fixed in support platform, specimen holder
It is connected on fixed station.The level height of sample to be tested on specimen holder can be improved in the fixed station, so that manipulator will be to be measured
Sample shifts between print frame and weighing unit.Connection type of the present embodiment between specimen holder and fixed station does not limit
It is fixed, it is preferred that be attached using dismountable connection type.Preferably, multiple location holes, location hole are provided on specimen holder
For providing stable placement site for sample to be tested, the present embodiment is not specifically limited the size of location hole, can be according to waiting for
The size of sample is set.
Location hole can provide specific position, the i.e. specific position relative to weighing unit and manipulator for sample to be tested,
In this way, being more conducive to the setting to robot movement path, manipulator is made accurately to capture sample to be tested.When sample placement unit
On when being provided with multiple location holes, multiple location holes are regularly arranged on sample placement unit.Herein regularly arranged can be,
Multiple location holes rule, it is equidistant be arranged in line-styled, can also be that multiple location holes rules, equidistant arrangement are rectangular,
It should be noted that " equidistant " here refers to that row distance between every row location hole is equal, the column distance phase between each column location hole
Deng " row distance " can be different from " column distance ".As shown in Fig. 2, 18 location holes are provided on sample placement unit, this 18
Location hole is arranged according to 6 × 3 formal rule.Regularly arranged location hole is more conducive to control unit to robot movement road
The setting of diameter, and then manipulator is made accurately to capture sample to be tested.
Embodiment 5
In conjunction with aforementioned one or more embodiments, the present embodiment further provides a kind of automatic weighing method.
Automatic weighing method provided in this embodiment includes:Initial markers:Sample to be tested is inputted in data processing unit
Initial markers;Sample weighing:The sample to be tested is transferred to weighing list by control unit control machinery hand from sample placement unit
Member is weighed, and testing data, data transmission are obtained:The testing data is transmitted to data processing list by data transmission unit
Member;Data processing:The testing data is handled using data processing unit.
The initial markers of sample to be tested herein may include:Title, number of sample to be tested etc., wherein sample to be tested
Title can include collecting location, acquisition time etc., number can be sample to be tested anchor point in sample placement unit
Number.The motion path that manipulator is set by control unit makes manipulator shift sample to be tested from sample placement unit
To weighing unit.Preferably, manipulator waits for certain time, so that the hurricane globe of weighing unit when close to weighing unit
Door receives the control of induction component, opens;After manipulator is far from weighing unit, it is also desirable to the regular hour is waited for, with to be analyzed
The weight of balance precise sample to be tested.Preferably, testing data is handled using data processing unit, place here
Reason can be data storage, data statistic analysis, the data calculating etc. carried out according to setting formula.
Preferably, automatic weighing method provided in this embodiment can continuously weigh multiple samples to be tested.
Specifically, when sample to be tested includes the first sample to be tested and the second sample to be tested, sample placement unit includes the
One anchor point and the second anchor point, the first sample to be tested are located at the first anchor point, and the second sample to be tested is located at the second anchor point.Root
The first path that robot movement is set according to the distance between the first anchor point and weighing unit, according to the second anchor point and weighing
The distance between unit sets the second path.Further, first path is:Robot movement is to the first anchor point, crawl the
One sample to be tested when moving to close to weighing unit, waits for certain time, the hurricane globe door of component controls weighing unit to be incuded
After unlatching, the first sample to be tested is put into the weighing site of weighing unit by manipulator, and after putting surely, manipulator exits weighing unit,
And it is separate, so that the hurricane globe door of induction component controls weighing unit is closed, certain time is waited for, so that weighing unit is accurate
After really weighing testing data, manipulator waits for certain time close to weighing unit, component controls weighing unit to be incuded it is windproof
After cover door is opened, manipulator takes out the first sample to be tested, and the first sample to be tested is put back to the first anchor point;Second path and the
One path is similar.
Embodiment 6
In conjunction with aforementioned one or more embodiments, the present embodiment further provides a kind of measurement side of sample loss on ignition
Method, as shown in Figure 3.
Step 1:The empty crucible is subjected to the first calcination, after the completion of the first calcination, takes out, is cooled to room temperature, weigh,
Obtain the first mass of the empty crucible;Step 2:Before sample to be tested is placed in sky crucible, the second matter of the empty crucible is weighed
Amount;Step 3:Sample to be tested is placed in the empty crucible, weighs, obtains the first gross mass of sample to be tested and crucible;Step
Four:The crucible for filling sample to be tested is subjected to the second calcination, after the completion of the second calcination, takes out, is cooled to room temperature, weigh, obtain
Second gross mass of sample to be tested and crucible after calcination, then,
LOI=((M1-Q2)-(M2-Q1))/(M1-Q2),
Wherein, M1For the first gross mass of sample to be tested in step 3 and crucible;M2For sample to be tested after calcination in step 4
With the second gross mass of crucible;Q1For the first mass of the hollow crucible of step 1;Q2For the second mass of the hollow crucible of step 2.
Preferably, the calcination temperature of the first calcination is 950-1000 DEG C, calcination time 30-120min in step 1, step
The calcination temperature of second calcination is 950-1000 DEG C in rapid four, calcination time 30-120min.Further, step 1 and step
Calcination time in rapid four is identical as calcination temperature.
The weighing unit selected in the present embodiment is assay balance, model:EXPLORER EX224ZH, manufacturer:Person of outstanding talent difficult to understand
This instrument (Changzhou) Co., Ltd.After the RS232 interface of assay balance configuration is connect with PC machine USB, with included SPDC Data
Collection softwares can realize balance and PC machine data communication, and the weight amount that balance weighs is transmitted in PC machine.Analysis
The hurricane globe door of balance can be controlled by one below door " close to switch " inductor, when there is object for the first time close to inductor
When, hurricane globe door can automatically open;After object is removed again, when being again close to inductor, hurricane globe door can be automatically closed.
The manipulator used in the present embodiment includes mechanical arm and cleft hand, and mechanical arm is produced using Shenzhen Hui Ling scientific & technical corporation
SNAKE1, cleft hand is after EFG-8, EFG-8 and the SNAKE1 of Shenzhen Hui Ling scientific & technical corporation production connects, it is unified use SNAKE1 and
Communication is realized in the cable connection of PC machine.The SNAKE softwares of Shenzhen Hui Ling scientific & technical corporation research and development are installed in PC machine to be controlled
The three-dimensional of EFG-8 cleft hands is mobile and " grabbing " operates with " putting ".SNAKE1 and EFG-8 coordinates, and can complete will be on crucible mounting table
One or more crucibles be moved to the weighing plate of balance, after weighing, then the crucible on weighing plate is moved to crucible and is put
Set platform original position.By the way that cleft hand to be moved near day jib door inductor, the opening and shutoff operation of day jib door can be carried out, from
And realize the automatic weighing to crucible on crucible mounting table.
Sample placement unit in the present embodiment is the refractory slab of 130*200mm, have on plate 3 rows 6 row totally 18 it is equidistant
The circular hole of arrangement, circular hole depth are 1 millimeter, and diameter and the crucible bottom diameter used in measurement loss on ignition are mating, make crucible that can just put
Enter circular hole, and crucible translation distance in circular hole is less than 0.2 millimeter.
The basic side of support platform in the present embodiment is solid 600*800 millimeters of squares, and the positive rear side of experimental bench is one
150*250*80 millimeters of cuboid fixed stations, the location hole on platform can guarantee when being placed into crucible placement plate on platform, parallel
In basic side and there is relatively fixed position.
In the present embodiment, PC machine is configured with USB interface and cable interface, and USB interface is used for the connection of PC machine and balance;Net
Line interface is used for the connection of PC machine and mechanical arm.Software major function is that the type of crucible to be weighed is arranged (to be divided into title in PC machine
Weight sky crucible demarcates four kinds of empty crucible, dress sample crucible and dress calcination sample crucible) and quantity (when crucible type is calibration sky
When crucible, the number for inputting each serial number crucible on crucible mounting table is needed);Control is coordinated to put down included SPDC Data
The SNAKE softwares that Collection softwares and mechanical arm carry, which are completed to treat, weighs weighing and result being stored in setting for crucible
File in.File is set as the file of an entitled TEMP, after the weighing for completing calcination sample, loss on ignition knot can be carried out
The calculating of fruit.In addition software also has two database files, and one is used to preserve empty crucible data, when one new crucible of enabling
When, it needs to register new crucible, when crucible damage does not use, needs to be unregistered.Another database is for protecting
Initial data used when storage sample product loss on ignition measurement result and result of calculation.
The weighing of the first mass and the second mass of empty crucible:
It should be further noted that the weighing of empty crucible, which is divided into, weighs and demarcates two types.According to empty crucible whether
Principle to be just cooled to room temperature after calcination in high temperature furnace is selected.For being just cooled to room temperature sky after the calcination in high temperature furnace
The weighing of crucible, selection " the empty crucible of calibration ".Empty crucible before by calibration is weighed, is selected " sky crucible of weighing ".It is right
The purpose that this two kinds of crucibles are distinguished be the to weigh weighing result of sky crucible is only stored in temporary file, demarcates the title of empty crucible
Amount result should preserve in temporary file, also update the weight data of reference numeral crucible in crucible database.
It can be seen that:The empty crucible weight used when example weight after calculating calcination calculates calcination in crucible database
The empty crucible weight used when preceding example weight is in temporary file.Due to demarcating weight during storage of the crucible after weighing
It is variant after just being cooled down with calcination, therefore according to when weighing crucible and sample total weight and analyzing example weight, it first weighs and has demarcated
The crucible weight crossed is necessary.
Balance is reset, the software in PC machine is started:Select weighing type for " the empty crucible of calibration " or " sky crucible of weighing ",
After inputting crucible quantity, then input the crucible number on each ordinal position.Then mechanical arm can weigh crucible from No. 1 position, first
Before arriving first an inductor, so that day jib door is opened, then crucible is put on platform, before returning an inductor, makes day
Jib door close, balance reading stablize after, PC machine read crucible gravimetric value, be stored in temporary file, and update it is right in crucible library
Answer crucible weight Value Data (do not updated if selecting " sky crucible of weighing " and correspond to crucible weight Value Data in crucible library).Mechanical arm
Cleft hand closes balance behind the door by triggering inductor opening day jib door taking-up crucible again and triggering inductor, and crucible is put back into
Original position.No. 2 position crucibles are handled successively, the crucible for setting quantity are all weighed finish always.
The weighing of first gross mass of sample to be tested and crucible:Appropriate sample to be determined is sequentially placed into sample placement unit
In upper just weighed empty crucible, balance is reset, starts the software in PC machine:It selects to weigh type to be " sample ", inputs earthenware
Mechanical arm can weigh crucible from No. 1 position after crucible quantity, before arriving door inductor first, so that day jib door is opened, then put crucible
Onto platform, before returning an inductor, day jib door is made to close, after balance reading is stablized, PC machine reads crucible sample-adding
Product gravimetric value, is stored in temporary file, and mechanical arm cleft hand by triggering inductor opening day jib door taking-up crucible and touching again
It sends out inductor and closes balance behind the door, crucible is put back into original position.No. 2 position crucibles are handled successively, will set quantity always
Crucible is all weighed and is finished.
The weighing of second gross mass of sample to be tested and crucible after calcination:The sample after filling calcination on sample placement unit
Crucible be cooled to room temperature after, balance is reset, start PC machine on software:It selects to weigh type to be " calcination sample ", input
Mechanical arm can weigh crucible from No. 1 position after crucible quantity, before arriving door inductor first, so that day jib door is opened, then by crucible
It is put on platform, before returning an inductor, day jib door is made to close, after balance reading is stablized, PC machine reads crucible and adds
Example weight value, is stored in temporary file, and mechanical arm cleft hand opens day jib door taking-up crucible simultaneously by triggering inductor again
It triggers inductor and closes balance behind the door, crucible is put back into original position.No. 2 position crucibles are handled successively, will set quantity always
Crucible all weigh finish.
Data processing is calculated with loss on ignition
Whenever the weighing of calcination based specimen crucible finishes, data processing can be automatically begun to.The sample of one number can correspond to one
A crucible number, and each crucible number and its 4 weighing data (the identical data of 3 serial numbers in temporary file and crucible
The weight data of corresponding crucible in database) it is corresponding.The difference of " sample " and " empty crucible " weight is example weight in temporary file,
The difference of the hollow crucible weight in crucible library is calcination based specimen weight, and ((example weight-calcination sample)/example weight) result is
Loss on ignition measured value.
Above-mentioned four groups of weighing datas and corresponding sample number into spectrum and loss on ignition measured value are stored in master as a record
In database, the data in temporary file then complete data processing after deleting.
Wherein,
(1) purpose that " empty crucible calibration " option and crucible database is arranged is because in actual operation, being burnt
Before vector measures work, crucible can be carried out to cleaning and weighed with calcination, so alleged gravimetric value is to calculate sample calcination base weight
The foundation of amount.Need sample being put into crucible using this system determination sample loss on ignition, weigh empty crucible and example weight it
With subtractive determines example weight.And weight change, empty crucible calibration may occur during preservation for the empty crucible of calcination
Value cannot be directly used to determine minuend when sample, need to be weighed again before being put into sample.
(2) call primary database in data can carry out the reading reports such as original record report and survey report generation,
Printing and archive.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
It is understood that the correlated characteristic in above-mentioned apparatus can be referred to mutually.In addition, in above-described embodiment " the
One ", " second " etc. is and not represent the quality of each embodiment for distinguishing each embodiment.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
One of meaning mode can use in any combination.The present invention all parts embodiment can with hardware realization, or
It is realized with combination thereof.
It should be noted that the present invention will be described rather than limits the invention for above-described embodiment, and ability
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference mark between bracket should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Component or component listed in the claims.Word "a" or "an" before component or component does not exclude the presence of multiple
Such component or component.The present invention can be realized by means of including the device of several different components.It is several listing
In the claim of component, several in these components can be embodied by the same component item.Word first,
Second and the use of third etc. do not indicate that any sequence.These words can be construed to title.
Heretofore described numberical range includes numerical value all within the scope of this, and includes any two within the scope of this
The value range of numerical value composition.
Technical characteristic in the claims in the present invention and/or specification can be combined, and a combination thereof mode is not limited to weigh
The combination that profit is obtained in requiring by adduction relationship.It is combined by the technical characteristic in claim and/or specification
The technical solution and protection scope of the present invention arrived.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to
According to the technical spirit of the present invention to any simple modification, equivalent change and modification made by above example, this hair is still fallen within
In the range of bright technical solution.
Claims (10)
1. a kind of automatic weighing system, it is characterised in that:Including,
Support platform, weighing unit, sample placement unit, manipulator, data transmission unit, data processing unit and control are single
Member,
Wherein, described control unit is used to control the manipulator by sample to be tested between weighing unit and sample placement unit
Transfer,
The data that the data transmission unit is used to weigh weighing unit export, and are sent to data processing unit,
The weighing unit, sample placement unit and manipulator are arranged in the support platform.
2. automatic weighing system according to claim 1, it is characterised in that:
The weighing unit, sample placement unit and manipulator are each attached in the support platform.
3. automatic weighing system according to claim 2, it is characterised in that:
The support platform is divided by four parts using virtual cross wire, the cross wire is defined and is horizontal axis and indulges
Axis regards four parts as four quadrants,
The weighing unit is fixed in first quartile, and the sample placement unit is fixed in the second quadrant, the manipulator
It is fixed between third quadrant and fourth quadrant.
4. automatic weighing system according to claim 1, it is characterised in that:
The weighing unit include induction component, it is described induction component be used for incude manipulator close to or away from, and then control
The door of weighing unit is turned on and off.
5. automatic weighing system according to claim 1, it is characterised in that:
The sample placement unit includes specimen holder and fixed station.
6. automatic weighing system according to claim 5, it is characterised in that:
The specimen holder includes multiple regularly arranged location holes, and the location hole is for placing sample to be tested.
7. a kind of automatic weighing method, it is characterised in that:
According to the automatic weighing system described in any one of claim 1-6, the weighing technique includes,
Initial markers:The initial markers of sample to be tested are inputted in data processing unit;
Sample weighing:The sample to be tested is transferred to weighing unit by control unit control machinery hand from sample placement unit, into
Row weighs, and obtains testing data,
Data transmission:The testing data is transmitted to data processing unit by data transmission unit;
Data processing:The testing data is handled using data processing unit.
8. automatic weighing method according to claim 7, it is characterised in that:
The sample to be tested includes at least the first sample to be tested and the second sample to be tested, and the sample placement unit includes at least the
One anchor point and the second anchor point, first sample to be tested are positioned over first anchor point, and second sample to be tested is put
It is placed in second anchor point,
The sample weighing step includes,
Control unit control machinery hand is moved along at least first path and the second path, obtains the first testing data and second to be measured
Data,
Wherein, first path is that manipulator captures the first sample to be tested from the first anchor point, and the first sample to be tested is placed in weighing
Unit weighs, and obtains the first testing data, then the first sample to be tested is taken out out of weighing unit, puts back at the first anchor point,
Second path is that manipulator captures the second sample to be tested from the second anchor point, and the second sample to be tested is placed in weighing unit,
It weighs, obtains the second testing data, then the second sample to be tested is taken out out of weighing unit, put back at the second anchor point.
9. automatic weighing method according to claim 7, it is characterised in that:
The data processing includes that data storage, data analysis, and/or data calculate.
10. a kind of assay method of sample loss on ignition, it is characterised in that:Including,
Using the automatic weighing system described in any one of claim 1-6,
Step 1:The empty crucible is subjected to the first calcination, after the completion of the first calcination, takes out, is cooled to room temperature, weigh, obtain
First mass of the sky crucible;
Step 2:Before sample to be tested is placed in sky crucible, the second mass of the empty crucible is weighed;
Step 3:Sample to be tested is placed in the empty crucible, weighs, obtains the first gross mass of sample to be tested and crucible;
Step 4:The crucible for filling sample to be tested is subjected to the second calcination, after the completion of the second calcination, takes out, is cooled to room temperature, claim
Amount, obtains the second gross mass of sample to be tested and crucible after calcination,
Then,
LOI=((M1-Q2)-(M2-Q1))/(M1-Q2),
Wherein, M1For the first gross mass of sample to be tested in step 3 and crucible;
M2For the second gross mass of sample to be tested after calcination in step 4 and crucible;
Q1For the first mass of the hollow crucible of step 1;
Q2For the second mass of the hollow crucible of step 2.
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