CN2531367Y

CN2531367Y - Electronic checking balance

Info

Publication number: CN2531367Y
Application number: CN 01279207
Authority: CN
Inventors: 张临芝; 石坚; 孔生; 杨文萍; 王晓东; 包中强; 彭加彦
Original assignee: LANZHOU ALUMINIUM INDUSTRY Co Ltd
Current assignee: Aluminum Corp of China Ltd
Priority date: 2001-12-18
Filing date: 2001-12-18
Publication date: 2003-01-15
Anticipated expiration: 2011-12-18

Abstract

An electric checking balance consists of two groups of measuring sensors which have similar technical parameters and are independent. The sensors of group A are arranged on horizontal ground, and the sensors of group B are horizontally positioned on a mesa of the sensors of group A, and the mesa of the sensors of group A is fixed with a base of the sensors of group B, and signal lines of the sensors of group A and B are separately connected to respective second display instruments which output the acquired two groups of data to a computer to be compared and checked. The electric checking balance can measure the same object at the same time and location, which meets the requirement of the metrological rule that a weighing meter with equal precision has checking weighing method, and synchronous checking up weight and synchronous checking and weighing are realized, and accidental deviation can be greatly decreased, and confidence probability of measurement results is improved from more than 95 percentages of a normal electro weighbridge to more than 99.9 percentages, and further working strength of measuring personnel is greatly decreased and working efficiency of the checking up weight is improved.

Description

The electronics checking balance

(1) technical field

The utility model belongs to a kind of metrology and measurement weighing apparatus, the specifically a kind of electronics checking balance that can compare automatically, check measurement result.

(2) background technology

At present, in industries such as many coloured, metallurgy, finished product dispatches from the factory with the bundled form of packing, and every bundle finished product is mostly between the 1-2 ton, and each enterprise is general goes up weighing apparatus electronically with 3 tons and carries out weighing and metering, and the measurement data are as the foundation of both sides' trade settlement.For guaranteeing to weigh data accurately and reliably.What just necessarily require to check the weight usefulness goes up weighing apparatus measuring accuracy height electronically, and quantification stability is good.Stipulate according to relative national standards, be used for the weighing apparatus measuring accuracy that trade settlement uses and be not less than three grades, development along with sensor technology and weighing apparatus manufacturing technology, the measuring accuracy that goes up weighing apparatus electronically can reach requirement fully, but for the quantification stability of going up weighing apparatus electronically, except the factor of weighing apparatus itself, influence factor such as attended operation level, weighing apparatus frequency of utilization is a lot of at ordinary times, because the unstable contingency measurement deviation that causes of weighing apparatus metering usually causes metering dispute.For stopping this type of dispute, enterprise's human and material resources that need cost a lot of money go to solve, the common method of taking has: after upward weighing apparatus has measured article electronically with one, going up weighing apparatus electronically with another again reweighs goods on a standard scale to check for cheating, it is consistent or when differing in certain permissible error scope, the measurement data of gained just effectively that two platform balances are weighed data; After perhaps going up a part of article of weighing apparatus metering electronically, demarcate this again with standard test weight again and go up weighing apparatus electronically with one, if demarcate qualified, just continue to be weighed, if defective, will reduce the contingency measurement deviation to all meterings again of the original article that measured as far as possible.Though these two kinds of methods can both guarantee to weigh data accurately and reliably, can influence greatly and weigh the efficient of checking the weight, increase measurement personnel's the workload of checking the weight.

(3) summary of the invention

The purpose of this utility model is to provide a kind of can reduce the accidental error of weighing in the weight testing process to greatest extent, can improve again and weigh efficient, the reduction measurement personnel working strength of checking the weight, the electronics checking balance that can compare automatically, check measurement data.For achieving the above object, the utility model proposes following technical scheme according to " etc. precision Weighing utensil nuclear title method ": this electronics checking balance comprises two groups of measurement sensors that technical parameter is close, separate, be A group sensor and B group sensor, secondary Displaying Meter and computing machine, A group sensor is fixed on the level ground, B group sensor level drops on the A group sensor table top, A is organized the table top of sensor and fixes with the base that B organizes sensor; Simultaneously same object is measured, A, the B group sensor that draws two groups of data links to each other with separately secondary Displaying Meter respectively by signal wire, the secondary Displaying Meter shows weighing result and is digital signal with analog signal conversion, the input computing machine is handled, computing machine compares the data of two sensors collection, draws a difference.If two groups of data are more or less the same, and difference thinks that then this electronics checking balance operation is normal during smaller or equal to prior a certain setting value, is that the data that A group sensor draws are final measurement with the master reference of wherein setting, and writes down automatically, handles and store; If two groups of data differ bigger, and difference illustrates that then the electronics checking balance goes wrong during greater than prior a certain setting value, and the alert inspection is also demarcated weighing apparatus again.

Two table top electronics checking balances that the utility model provides have following characteristics:

1. since this electronics checking balance be by two sensors at one time, same place measures same object and checks the weight, drawing two groups of data simultaneously compares, checks, stopped the appearance of unusual measurement data, guaranteed the accuracy of measurement result, generally go up weighing apparatus electronically and be single group sensor, measuring accuracy is the III level, the fiducial probability of measurement result＞95%, this electronics checking balance measuring accuracy is the III level, the fiducial probability of measurement result＞99.9%, and satisfy the metrological legislation requirement of " etc. precision Weighing utensil nuclear title method ".

When 2. generally going up weighing apparatus electronically and being weighed for a long time, because stability reduces, occur the deviation of contingency unavoidably, these contingency deviations generally go up weighing apparatus electronically and are difficult in time find, and this electronics checking balance can reduce the contingency deviation to greatest extent.

3. by the read routine of electronics checking balance, calculate the function automatic reading, handle and weigh data, reduced the measurement deviation that human factor is brought.

4. because in the process of once being weighed, two covers are weighed sensor and simultaneously same object are checked the weight, and accuracy and the reliability of weighing data all improve greatly, needn't compare mutually with two weighing apparatus again, therefore greatly reduce measurement personnel's working strength, improved and weighed the work efficiency of checking the weight.

(4) description of drawings

Fig. 1 is the structural representation of electronics checking balance;

Fig. 2 is the composition frame chart of electronics checking balance.

(5) specific implementation

Among Fig. 1: 1-A organizes sensor base; 2-A organizes sensor; 3-A group sensor terminal box; 4-A group sensor table top; 5-A organizes sensor support base; 6-A group sensor fork; 7-B organizes sensor base; 8-B organizes sensor; 9-B group sensor terminal box; 10-B group sensor table top; 11-B organizes sensor support base; 12-B group sensor fork.

The close measurement sensor groups of two groups of technical parameters of A, B is fitted together, A group sensor is following, B group sensor level drops on the A group sensor table top, the base of B group sensor and A group sensor table top are fixed, the terminal box 3,9 of A, B group sensor links to each other with separately secondary Displaying Meter respectively by signal wire, the secondary Displaying Meter shows the weighing result that is collected by A, B group sensor 2,8, and is digital signal with analog signal conversion, and the input computing machine carries out data processing.Be to use PB7.0 under WIN2000 operating system, to develop with the matching used upper computer software of electronics checking balance.The secondary instrument of scale and the communication interface between the computing machine are to use the communication function of VB6.0 and com1, the com2 data communication of computing machine to carry out data communication, weighing data is sent to computing machine by certain hour by A, B group sensor secondary Displaying Meter separately, to weigh data stable when determining two groups, just recorded data.

When being weighed, the weighing article body is placed on the B group sensor table top, can realizes checking the weight synchronously, examining synchronously scale.Computing machine compares the data of A, B group sensor acquisition, draws a difference, when this value during smaller or equal to prior a certain setting value, thinks that then the A group data of wherein setting are correct, reaches the purpose of data check, and computing machine will write down automatically, storage data.When this is worth greatly less than setting value, illustrate that measurement data is wrong, computing machine is checked weighing apparatus with alert, demarcates again.

Claims

1, a kind of electronics checking balance, comprise two groups of measurement sensors that technical parameter is close, separate, be A group sensor and B group sensor, secondary Displaying Meter and computing machine, it is characterized in that A group sensor is fixed on the level ground, B group sensor level drops on the A group sensor table top, A is organized the table top of sensor and fixes with the base that B organizes sensor; Simultaneously same object is measured, A, the B group sensor that draws two groups of data links to each other with separately secondary Displaying Meter respectively by signal wire, show weighing result and with analog signal conversion be digital signal the secondary Displaying Meter with carry out the computing machine that data compare, check and link to each other.