CN101592534B - Graphical recording method for force value tests - Google Patents
Graphical recording method for force value tests Download PDFInfo
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- CN101592534B CN101592534B CN2009100540916A CN200910054091A CN101592534B CN 101592534 B CN101592534 B CN 101592534B CN 2009100540916 A CN2009100540916 A CN 2009100540916A CN 200910054091 A CN200910054091 A CN 200910054091A CN 101592534 B CN101592534 B CN 101592534B
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Abstract
The invention relates to a graphical recording method, in particular to a graphical recording method for force value tests. The graphical recording method comprises a regular value depictpoint method, a regular force value measuring method and an additional depictpoint method, wherein the regular force value measuring method compares continuously acquired force values measured for three times to determine the time of generating a wave crest and a wave trough and corresponding force values; and the additional depictpoint method is to perform additional depictpoint on the corresponding force values of the wave crest or the wave trough determined in the regular force value measuring method in the regular value depictpoint method. The method aims to design a graphical recording method for the force value tests capable of accurately reflecting a force value variation curve of the whole measuring process. Compared with the prior art, the method has the advantages of good constant velocity of test recording graphs, true and reliable force value variation and the like.
Description
Technical field
The present invention relates to graphical recording method, particularly a kind of graphical recording method of force value tests.
Background technology
At present the waveform record test process function that had of surveying instrument products such as the digital display type pull and push dynamometer of existing domestic and imported, torque tester, force tester adopts mostly and regularly gets a trace-point method or adopt filtering to get a trace-point method---promptly arrived certain hour after, get current value or filter value, again it is retouched on the relevant position of test curve.This method collects crest and the trough that the power value changes owing to can not compare and measure, so can not accurately react the power value change curve of whole measuring process for fast-changing measured value in the process.Though acquisition time can be shortened, adopt intensive value described point, also can describe test curve preferably and change, this needs the support of high capacity internal memory, simultaneously anti-interferencely also can weaken, also be its drawback place.
Summary of the invention
The objective of the invention is to design a kind of graphical recording method of force value tests, make the power value change curve that it can the whole measuring process of accurate response, improve anti-interference simultaneously again.
In order to achieve the above object, the present invention adopts following technical solution:
A kind of graphical recording method of force value tests, it comprises regularly value trace-point method, and its value and described point T.T. are T, and the time interval is Δ T, it is characterized in that:
(1) also comprises regularly ergometry value method, the force measurement time of described timing ergometry value method is t, measuring intervals of TIME is Δ t, measuring intervals of TIME Δ t is less than value in the described timing value trace-point method and described point time interval Δ T several times, and described timing ergometry value method is also to three ergometry value Y of continuous acquisition
N-1, Y
n, Y
N+1Compare mutually, determine the time t that crest and trough produce
nWith corresponding force value Y
n
(2) also comprise additional trace-point method, it adds described point with the crest definite in the described timing ergometry value method or the corresponding force value of trough in described timing value trace-point method.
Three ergometry value Y of described timing ergometry value method continuous acquisition
N-1, Y
n, Y
N+1Different Results by following comparison writes down described point:
(1) works as Y
N-1＜Y
n＜Y
N+1Or Y
N-1＞Y
n＞Y
N+1The time, graphic recording carries out the graphic recording described point by described timing value trace-point method;
Because Y
N-1＜Y
n＜Y
N+1Or Y
N-1＞Y
n＞Y
N+1, it is an incremental change or decrement that the explanation of force value changes, and crest and trough flex point do not occur.
(2) work as Y
N-1＜Y
n, Y
N+1＜Y
nThe time, crest produces, and the time point position that produces of crest and the described point time point position of described timing value trace-point method do not repeat, and described timing value trace-point method is with crest power value Y
nAs the additional force value at time t
N+1The point position adds described point;
(3) work as Y
N-1＞Y
n, Y
N+1＞Y
nThe time, trough produces, and the time point position that produces of trough and the described point time point position of described timing value trace-point method do not repeat, and described timing value trace-point method is with trough power value Y
nAs the additional force value at time t
N+1The point position adds described point.
Because the present invention can collect crest and trough that the power value changes, simultaneously it is given the addition record described point, so can reacting the power value of whole measuring process accurately, the graphical recording curve that the present invention obtains changes, and interference-free when data acquisition, strong interference immunity.
Description of drawings
The present invention is described in detail with actual Application Example of testing below in conjunction with accompanying drawing
Fig. 1 is a present embodiment actual measurement power value variation diagram.
Fig. 2 is the graphical record diagram of present embodiment force measurement.
Fig. 3 is regularly value described point power value change records figure of tradition.
Embodiment
Present embodiment, is made comparisons the graphical recording method of force value tests of the present invention and traditional timing described point method in conjunction with graphical record test device by the compressive resistance test experiments to " touching button ", and the relative advantage that the present invention has is described.
Measured target part is for having the button that touches of " Ka Ka " sound action.
Graphical record test device and button special test frame are formed special-purpose button testing machine, stipulate that a test duration is the experiment of single depression power, promptly from button do not have stress to the complete stress of button to getting back to no stress, its main shaft round trip height is limited by button special test frame simultaneously, defines the peak value of maximum weighted state then.
It comprises regularly value trace-point method, timing ergometry value method and additional trace-point method the recording method of present embodiment.
If a test duration is 1.0s, the value of then described timing value trace-point method and described point time T are 1.0s, and the force measurement time t of described timing ergometry value method is 1.0s.
If the value time interval in the described timing value trace-point method and the time interval Δ T of described point are 0.1s, then value time point position and described point time point position are 0.1s, 0.2s, 0.3s, 0.4s, 0.5s, 0.6s, 0.7s, 0.8s, 0.9s, 1.0s.Be less than the value in the described timing value trace-point method and the general requirement of described point time interval Δ T several times according to the force measurement time interval Δ t in the described timing ergometry value method, if the force measurement time interval Δ t in the described timing ergometry value method is 0.01s, the Measuring Time point of then described timing ergometry value method position is 0.01s, 0.02s, 0.03s, 0.04s, 0.05s.........0.98s, 0.99s, 1.0s.According to the Measuring Time of setting, present embodiment actual measurement power value variation diagram as shown in Figure 1.
According to shown in Figure 1, before test duration 0.40S, it is incremental change, i.e. a Y that the power value that continuous acquisition is measured changes
N-1＜Y
n＜Y
N+1, crest and trough flex point do not appear.The graphical record of force value tests carries out the graphic recording described point by described timing value trace-point method, as the OA section among Fig. 2.
According to shown in Figure 1, between test duration 0.40S-0.42S, three ergometry value Y of described timing ergometry value method continuous acquisition
40, Y
41, Y
42, and Y
40＜Y
41, Y
42＜Y
41, the explanation of force value has crest to produce at test process, simultaneously, and the time point t that crest produces
41=0.41S, does not repeat the time point position that crest produces and the described point time point position of described timing value trace-point method, and described timing value trace-point method is with crest power value Y
41As the additional force value at time t
42The point position adds described point, and as the point of the B among Fig. 2,0.42S is got in the time point position that B is ordered, and the power value that B is ordered is got the crest power value Y among Fig. 1
41, connecting A, B 2 points, the AB section changes the figure record diagram for additional power value.
According to shown in Figure 1, between test duration 0.47S-0.48S, three ergometry value Y of described timing ergometry value method continuous acquisition
46, Y
47, Y
48, and Y
47＜Y
46, Y
47＜Y
48, the explanation of force value has trough to produce at test process, simultaneously, and the time point position t that trough produces
47=0.47S, does not repeat the time point position that trough produces and the described point time point position of described timing value trace-point method, and described timing value trace-point method is with trough power value Y
47Give described point as the additional force value, as the point of the C among Fig. 2,0.48S is got in the time point position that C is ordered, and the power value that C is ordered is got the trough power value Y among Fig. 1
47, connecting B, C 2 points, the BC section changes the figure record diagram for additional power value.
According to shown in Figure 1, between test duration 0.48S-0.70S, it is incremental change, i.e. a Y that the power value that continuous acquisition is measured changes
N-1＜Y
n＜Y
N+1, crest and trough flex point do not appear.The graphical record of force value tests carries out the graphic recording described point by described timing value trace-point method, as the CHD section among Fig. 2.
According to shown in Figure 1, between test duration 0.69S-0.71S, three ergometry value Y of described timing ergometry value method continuous acquisition
69, Y
70, Y
71, and Y
69＜Y
70, Y
71＜Y
70, the explanation of force value has crest to produce at test process, simultaneously, and the time point position t that crest produces
70=0.7S, at this moment, the time point position that crest produces and the described point time point position 0.7s of described timing value trace-point method repeat, therefore, the power value of this crest writes down described point in described timing value trace-point method, as the point of the D among Fig. 2, no longer carry out the addition record described point.
In like manner, between test duration 0.71S-1.0S, it is a decrement that the power value that continuous acquisition is measured changes, and crest and trough flex point do not occur.The graphical record of force value tests carries out the graphic recording described point by described timing value trace-point method, as the DE section among Fig. 2.
By on learn that the OABCHDE curve is the present invention's graphical record diagram of resulting force measurement in the compressive resistance test experiments of " touching button " is used.
Again as shown in Figure 3, this figure uses the power value change records figure that the single timing value trace-point method of tradition is reflected in the compressive resistance test experiments of " touching button ", though this timing value trace-point method collects the unique crest value (D ' the some position among Fig. 3) in the whole test process, but contrast with the graphical record diagram of present embodiment force measurement (Fig. 2), still lose crest and two flex points of trough (B among Fig. 2, C point position) between 0.4s and 0.5s, made force value tests curve OA ' H ' D ' E ' have " frame losing " phenomenon.
In sum, the present invention compared with prior art has the following advantages:
1, at the uniform velocity property is good for test record figure. The graphical kymogram of force measurement guarantees that whole described point speed is unaffected, so that test curve has better at the uniform velocity property on the basis that increases described point quantity.
2, the authenticity of power value variation obtains Reliable guarantee. On limited memory size, realize simultaneously that regularly described point and additional described point combine, and have guaranteed the authenticity that the power value changes in the whole test process effectively.
Claims (2)
1. the graphical recording method of a force value tests, it comprises regularly value trace-point method, and its value and described point time are T, and the time interval is Δ T, it is characterized in that:
(1) also comprises regularly ergometry value method, the force measurement time of described timing ergometry value method is t, measuring intervals of TIME is Δ t, measuring intervals of TIME Δ t is less than value in the described timing value trace-point method and described point time interval Δ T several times, and described timing ergometry value method is also to three ergometry value Y of continuous acquisition
N-1, Y
n, Y
N+1Compare mutually, determine the time t that crest and trough produce
nWith corresponding force value Y
n
(2) also comprise additional trace-point method, it adds described point with the crest definite in the described timing ergometry value method or the corresponding force value of trough in described timing value trace-point method.
2. the graphical recording method of a kind of force value tests according to claim 1 is characterized in that three ergometry value Y of described timing ergometry value method continuous acquisition
N-1, Y
n, Y
N+1Different Results by following comparison writes down described point:
(1) works as Y
N-1＜Y
n＜Y
N+1Or Y
N-1＞Y
n＞Y
N+1The time, graphic recording carries out the graphic recording described point by described timing value trace-point method;
(2) work as Y
N-1＜Y
n, Y
N+1＜Y
nThe time, crest produces, and the time point position that produces of crest and the described point time point position of described timing value trace-point method do not repeat, and described timing value trace-point method is with crest power value Y
nAs the additional force value at time t
N+1The point position adds described point;
(3) work as Y
N-1＞Y
n, Y
N+1＞Y
nThe time, trough produces, and the time point position that produces of trough and the described point time point position of described timing value trace-point method do not repeat, and described timing value trace-point method is with trough power value Y
nAs the additional force value at time t
N+1The point position adds described point.
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|---|---|---|---|
| CN2009100540916A CN101592534B (en) | 2009-06-26 | 2009-06-26 | Graphical recording method for force value tests |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100540916A CN101592534B (en) | 2009-06-26 | 2009-06-26 | Graphical recording method for force value tests |
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| Publication Number | Publication Date |
|---|---|
| CN101592534A CN101592534A (en) | 2009-12-02 |
| CN101592534B true CN101592534B (en) | 2010-12-08 |
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|---|---|---|---|
| CN2009100540916A Expired - Fee Related CN101592534B (en) | 2009-06-26 | 2009-06-26 | Graphical recording method for force value tests |
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| CN107063542B (en) * | 2017-04-25 | 2019-08-30 | 航天科技控股集团股份有限公司 | A kind of automobile meter pointer pressing pressure maximum value detection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044716A (en) * | 1989-02-01 | 1990-08-15 | 刘希汉 | Composite point to point is interpolation and system software thereof relatively |
| CN1431465A (en) * | 2003-01-14 | 2003-07-23 | 孙建中 | Dynamic collecting platform method based on point source information |
-
2009
- 2009-06-26 CN CN2009100540916A patent/CN101592534B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044716A (en) * | 1989-02-01 | 1990-08-15 | 刘希汉 | Composite point to point is interpolation and system software thereof relatively |
| CN1431465A (en) * | 2003-01-14 | 2003-07-23 | 孙建中 | Dynamic collecting platform method based on point source information |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-300536A 2006.11.02 |
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| CN101592534A (en) | 2009-12-02 |
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Assignee: Wenzhou Sundoo Instruments Co., Ltd. Assignor: Chen Shengtao Contract record no.: 2011330001359 Denomination of invention: Graphical recording method for force value tests Granted publication date: 20101208 License type: Exclusive License Open date: 20091202 Record date: 20111111 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20170626 |