CN201740709U - Sensor device of non-contact digital resiliometer - Google Patents
Sensor device of non-contact digital resiliometer Download PDFInfo
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- CN201740709U CN201740709U CN2010201025732U CN201020102573U CN201740709U CN 201740709 U CN201740709 U CN 201740709U CN 2010201025732 U CN2010201025732 U CN 2010201025732U CN 201020102573 U CN201020102573 U CN 201020102573U CN 201740709 U CN201740709 U CN 201740709U
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Abstract
The utility model relates to a sensor device of a non-contact digital resiliometer, which belongs to a nondestructive testing instrument for the compressive strength of the concrete and comprises three photocouplers, a vernier, a vernier guide rod, a photocoupler fixing plate, an optical grating and a scale plate, wherein at least two photocouplers can be tested when the optical grating moves within the high accuracy range, the output level of at least one photocoupler jumps when the photocoupler moves every 0.5 rebound value, and the rebound value can be calculated by counting the output level of the photocoupler. The sensor device of the non-contact digital resiliometer has the advantages of high sampling accuracy, high intelligent degree, low cost and convenient maintenance and correction.
Description
[technical field]
The utility model relates to a kind of non-contact digital reisilometer sensor device, and non-contacting sensor device in the index word reisilometer especially belongs to the Non-Destructive Testing detecting instrument of concrete crushing strength.
[background technology]
Rebound method is one of concrete crushing strength detection method, and is the harmless the most frequently used detection method of concrete crushing strength.The instrument that rebound method uses is a reisilometer.Reisilometer divides two kinds, a kind of common reisilometer, and another kind is a digital rebound tester.Common reisilometer, though cost is low, but owing to needing process one man operation and observation, a people to write down rebound value by hand and be inserted in formula and rebound value is converted into intensity level by artificial calculating, workload is big, intelligent degree is low, measuring speed is slow, precision is low, the not high shortcoming of accurate type, is more and more replaced by digital rebound tester.Digital rebound tester is divided into two kinds, and a kind of is the contact digital rebound tester, and another kind is contactless digital rebound tester.The contact digital rebound tester, be called " concrete crushing strength instrument for evaluating " as the patent No. for " 88210311.3 " name, it is equipped with slide potentiometer on reisilometer, the sliding spring sheet of this slide potentiometer and the pointer of reisilometer combine as a whole, the axial reisilometer needle pivot of potentiometer resistance wire coil is installed, the simulating signal of slide potentiometer enters into central processing unit after drawing and inserting modulus conversion chip, and central processing unit reads the voltage of different resistance values, is scaled corresponding reisilometer indicating value.This kind method obtains certain progress on intelligent, effectively reduced workload, but reisilometer frequency of utilization height, sliding spring sheet length service time one will be become flexible, increased the resistance of former reisilometer slide block, cause bigger systematic error, cause the signal of being defeated by modulus conversion chip inaccurate, gather out data distortion; The sliding spring sheet is significantly smaller than reisilometer machinery serviceable life serviceable life.Thereby Liu Tong major part is contactless digital rebound tester in the market.Non-contact digital reisilometer implementation method has following three kinds:
First kind, the instantaneous velocity method.Hide photoelectric device during slide block movement, measure the instantaneous velocity of slide block, by speed calculation slide block position, converse the reisilometer indicating value at last, be called the reisilometer of electron showing value device " band " for " 01220127.8 " utility model name and number of patent application is called " reisilometer data collector " for " 02212372.5 " utility model name as number of patent application, use this method, though solved the problem of bringing after the frequent use of contact reisilometer, but, reisilometer does not have corresponding relation in the slide position of lower-speed state with instantaneous velocity, be random state, and, repeatability do not had, so cause the indicating value blind area in 30% numerical range, simultaneously, this method requires that friction force between slide block and the guide rod is omnidistance must desired constant, and is to be difficult to control do and obtain in the actual manufacture process, thereby, there is certain error, even if proofread and correct but because discreteness also must all will be carried out its poor practicability at every turn.
Second kind, the CCD mensuration.Be called " reisilometer data collector " as number of patent application for " 02268353.4 " utility model name, this method linear CCD displacement transducer is on scaleplate, scaleplate high scale line is input in the CCD displacement transducer, what the CCD displacement transducer was exported is the wedge-shaped impression waveform, central processing unit is converted into reisilometer indicating value and concrete crushing strength value as long as statistics wedge-shaped impression waveform just can calculate displacement according to displacement.Though this kind method solves the problem of instantaneous velocity method, because the CCD displacement transducer is in use, current sinking is big, and digital reisilometer is a kind of handheld device, and its battery capacity of joining is limited, thereby, be not suitable for handheld device; Reisilometer is according to People's Republic of China's industry standard---" rebound method detects concrete crushing strength technical regulation " regulation, reisilometer measurement number of times reaches 2000 times just to be needed to safeguard once, in maintenance process, often damage the CCD displacement transducer easily, it is very inconvenient to make daily servicing, dismounting, maintenance, correction bring; The price height of CCD displacement transducer, and it is also high that it drives cost, causes cost to increase.Thereby, also the CCD displacement transducer is not applied on the digital rebound tester in the market, be theoretic research.
The third, grating fixedly optocoupler moves method.Be called " digital rebound tester " as application number for " 03208209.6 " utility model name, optocoupler is fixedly mounted on the vernier, vernier is installed on the vernier guide rod, grating is fixed on the sensor shell intracoelomic cavity, grating is arranged in the middle of the optocoupler U font groove, reisilometer is when work, vernier is moving, because optocoupler is fixing according on vernier, is equivalent to, optocoupler is also moving, because in the optocoupler U font groove grating is arranged, thereby, show the height varying level in the grid of optocoupler process grating and the grid seam process, single-chip microcomputer is converted out the reisilometer indicating value as long as statistics high-low level number just can be known the number of process grid and grid seam.In order to reach sampling precision, grating pitch reduces, the grating thickness attenuate.Because grating pitch reduces, caused by contamination by dust easily measuring and forbidden, because the grating thickness attenuate causes grating level fully, having any sticks up, and causes increasing measuring error.
[utility model content]
The technical assignment of the technical problems to be solved in the utility model and proposition is that the prior art scheme is improved and improved, and a kind of non-contact digital reisilometer sensor device is provided, and makes its measuring accuracy height, and cost is low, and it is convenient to install, safeguard, proofread and correct.For this reason, the utility model is taked following technical scheme:
Non-contact digital reisilometer sensor device, comprise optocoupler 1, optocoupler 2, optocoupler 3, vernier 4, vernier guide rod 5, optocoupler fixed head 6, grating 7, scaleplate 13 is formed, it is characterized in that: described grating 7 is by grid line 11, grid seam 10, pointer 8, form with the screw hole 9 that vernier 4 fixes, the width of grid line is identical with the width of grid seam, the grid line width is the displacement of a rebound value, grid line has 21, grid are sewed with 20, the both sides of grid line are the grid seams, the both sides of grid seam are grid lines, grating is beginning with the grid line and finishes, and it is that grating has begun the 12nd grid seam starting end till the grating end that the grating pointer is in the position; Described optocoupler 1, optocoupler 2, optocoupler 3 levels point-blank are mounted and fixed on the optocoupler fixed head 6, spacing is half sum that grid line 11 width integral multiples add grid line 11 width again in the grating 7 between optocoupler 1 and the optocoupler 2, and spacing is half sum that grid line 11 width integral multiples add grid line 11 width again in the grating 7 between optocoupler 2 and the optocoupler 3; Described optocoupler 1 center is in the position of rebound value 20; Pointer optocoupler 3 centers are in the position of rebound value 60 on the described grating 5; Described optocoupler 2 centers are between optocoupler 1 and the optocoupler 3, and spacing finishes previous rebound value position less than pointer on the grating to grating between optocoupler 1 and the optocoupler 2; Two screw holes are arranged on the described vernier, vernier and grating can be installed and fixed together with the grating hole 9 of tightening up a screw; Described grating moves horizontally in optocoupler U font groove.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature:
The displacement of a described rebound value is meant 0.75mm.
Beneficial effect:
According to " rebound method detect concrete crushing strength technical manual JGJ/T232001 " with rebound value from minimum value 20 to maximal value in 60, the grid seam of grating has 41 with grid line, thereby, in the grating moving process, minimum through two adjacent optocouplers, and, spacing is half sum that grid line width integral multiple adds the grid line width again between two adjacent optocouplers, when first optocoupler just stitches to the excessive position of grid line from grid, another optocoupler then is in half position of the grid line or the grid seam of optocoupler, grating moves half grid line or gap width, then first optocoupler still is in half position of grid line width, second optocoupler then becomes and is in next grid seam or grid line position from being in grid line or grid seam position, the grid line of grating is different through the level of optocoupler output with the grid seam, move a grid line width at grating, two adjacent optocouplers live through a high-low level saltus step respectively, twice saltus step arranged, thereby, a plurality of photocoupler set can be told half that grating moves grid line or gap width altogether, like this, can increase the thickness of grating, remedy the too thin easy deformation of grating, reduce grating and safeguard, simultaneously, improved measuring accuracy.Because measuring accuracy is controlled in the standard between the minimum value and maximal value, reduced the length of grating, saved the space, having reduced suitably also that grating is long can distortion, causes measuring inaccurate.
[description of drawings]
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model reisilometer grating and scaleplate synoptic diagram when zero-bit;
Fig. 3 is the utility model reisilometer in zero-bit is 20 o'clock gratings and scaleplate synoptic diagram to rebound value;
Fig. 4 is the utility model reisilometer at rebound value is 20 o'clock gratings and scaleplate synoptic diagram;
Fig. 5 is the utility model reisilometer grating and scaleplate synoptic diagram within rebound value 20 to 60;
Fig. 6 is the utility model grating grating and scaleplate synoptic diagram when being about to leave the 1st optocoupler and just having entered the 3rd optocoupler;
Fig. 7 is the utility model grating grating and scaleplate synoptic diagram during through the 2nd optocoupler and the 3rd optocoupler;
Fig. 8 is the utility model reisilometer grating and scaleplate synoptic diagram when rebound value 60;
Fig. 9 is the utility model grating grating and scaleplate synoptic diagram during through the 2nd optocoupler and the 3rd optocoupler;
Figure 10 is the utility model grating grating and scaleplate synoptic diagram when being about to leave the 3rd optocoupler.
Figure 11 is the utility model grating grating and scaleplate synoptic diagram when leaving the 3rd optocoupler.
[embodiment]
Below in conjunction with Figure of description the technical solution of the utility model is described in further detail.
As shown in Figure 1, non-contact digital reisilometer sensor device, comprise optocoupler 1, optocoupler 2, optocoupler 3, vernier 4, vernier guide rod 5, optocoupler fixed head 6, grating 7, scaleplate 13 is formed, it is characterized in that: grating 7 is by grid line 11, grid seam 10, pointer 8, form with the screw hole 9 that vernier 4 fixes, the width of grid line is identical with the width of grid seam, the grid line width is the displacement of a rebound value, grid line has 21, grid are sewed with 20, the both sides of grid line are the grid seams, the both sides of grid seams are grid lines, and grating is beginning with the grid line and finishes, and it is that grating has begun the 12nd grid seam starting end till the grating end that the grating pointer is in the position; Optocoupler 1, optocoupler 2, optocoupler 3 levels are mounted and fixed on the housing point-blank, spacing is half sum that grid line 11 width integral multiples add grid line 11 width again in the grating 7 between optocoupler 1 and the optocoupler 2, and spacing is half sum that grid line 11 width integral multiples add grid line 11 width again in the grating 7 between optocoupler 2 and the optocoupler 3; Optocoupler 1 center is in the position of rebound value 20; Pointer optocoupler 3 centers are in the position of rebound value 60 on the grating 5; Optocoupler 2 centers are between optocoupler 1 and the optocoupler 3, and spacing finishes previous rebound value position less than pointer on the grating to grating between optocoupler 1 and the optocoupler 2; Two screw holes are arranged on the vernier, vernier and grating can be installed and fixed together with the grating hole 9 of tightening up a screw; Grating moves horizontally in optocoupler U font groove.
As shown in Figure 2, when reisilometer was in zero-bit, grating was only through the 1st optocoupler.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
As shown in Figure 3, reisilometer is from zero-bit, and moving to rebound value is between 20, and grating is only through the 1st optocoupler.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
As shown in Figure 4, reisilometer is when rebound value 20 positions, and grating has just entered the 2nd optocoupler stage, and grating is through the 1st and the 2nd optocoupler.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
As shown in Figure 5, reisilometer is from rebound value 20, and mobile grating enters the stage before the 3rd optocoupler, and grating is through the 1st and the 2nd optocoupler.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
As shown in Figure 6, reisilometer is from grating during simultaneously through 3 optocouplers, grating and scaleplate position relation.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
As shown in Figure 7, the reisilometer grating leaves from the 1st optocoupler, only through the 2nd optocoupler and the 3rd optocoupler, and grating and scaleplate position relation.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
As shown in Figure 8, the reisilometer grating is just the 2nd optocoupler departure time, and only through the 3rd optocoupler, grating and scaleplate position concern.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
As shown in Figure 9, the reisilometer grating only through the 3rd optocoupler before the native system energy measurement maximum magnitude, grating and scaleplate position concern.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
As shown in figure 10, the reisilometer grating is during only through the 3rd optocoupler and native system energy measurement maximum magnitude, and just rebound value was at 83 o'clock, and grating concerns with the scaleplate position.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
As shown in figure 11, the reisilometer grating is without three any one optocouplers of optocoupler, and when having exceeded native system energy measurement maximum magnitude, when just rebound value was after 83, grating and scaleplate position concerned.The 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.
The course of work:
The grid seam of grating has 41 with grid line, and the 1st, the 2nd, the 3rd optocoupler is installed in 20,37.5,60 3 positions of rebound value respectively successively.Reisilometer is when zero-bit, grating is mobile to having, then the 1st optocoupler stitches from the grid line to grid and carries out saltus step, optocoupler output just is from the high level to the low transition, it is low level that the 2nd and the output of the 3rd optocoupler all keep, it is before 20 the time that reisilometer moves to rebound value from zero-bit, have only the 1st optocoupler output level from high level---〉low level---〉high level---〉low level---〉high level---〉low level---〉high level---〉low level---〉high level---〉low level---〉high level---〉low level---〉high level---〉low level---〉high level---〉low level, last 1 low level keep be preceding 1 high level half begin constantly, just rebound value is in 19.5 beginnings, the 2nd optocoupler output level begins from the low level to the high level, when grating moves half rebound value displacement again, just rebound value is in 20 beginnings, the 1st optocoupler output is switched from the low level to the high level, the 2nd optocoupler still keeps high level, when grating moves half rebound value displacement again, just rebound value is in 20.5 beginnings, the 1st optocoupler output keeps high level, the 2nd optocoupler output level switches from the high level to the low level, and the like, can learn, rebound value is between 20 to 60, every grating moves 0.5 rebound value, the rarest optocoupler level is in saltus step in three optocouplers, thereby, can learn that rebound value rate respectively is 0.5.
Non-contact digital reisilometer sensor device shown in above Fig. 1,2,3,4,5,6,7,8,9,10,11 is a specific embodiment of the utility model; the utility model substantive distinguishing features and progress have been embodied; can be according to the use needs of reality; under enlightenment of the present utility model; it is carried out the equivalent modifications of aspects such as structure, all at the row of the protection domain of this programme.
Claims (2)
1. non-contact digital reisilometer sensor device, comprise optocoupler (1), optocoupler (2), optocoupler (3), vernier (4), vernier guide rod (5), optocoupler fixed head (6), grating (7), scaleplate (13) is formed, it is characterized in that: described grating (7) is by grid line (11), grid seams (10), pointer (8), form with the screw hole (9) that vernier (4) fixes, the width of grid line is identical with the width of grid seam, the grid line width is the displacement of a rebound value, grid line has 21, grid are sewed with 20, the both sides of grid line are the grid seams, the both sides of grid seam are grid lines, grating is beginning with the grid line and finishes, and it is that grating has begun the 12nd grid seam starting end till the grating end that the grating pointer is in the position; Described optocoupler (1), optocoupler (2), optocoupler (3) level point-blank are mounted and fixed on the optocoupler fixed head (6), spacing is half sum that grid line (11) width integral multiple adds grid line (11) width again in the grating (7) between optocoupler (1) and the optocoupler (2), and spacing is half sum that grid line (11) width integral multiple adds grid line (11) width again in the grating (7) between optocoupler (2) and the optocoupler (3); Described optocoupler (1) center is in the position of rebound value 20; Described grating (5) is gone up the position that pointer optocoupler (3) center is in rebound value 60; Described optocoupler (2) center is between optocoupler (1) and the optocoupler (3), and spacing finishes previous rebound value position less than pointer on the grating to grating between optocoupler (1) and the optocoupler (2); Two screw holes are arranged on the described vernier, vernier and grating can be installed and fixed together with the grating hole (9) of tightening up a screw; Described grating moves horizontally in optocoupler U font groove.
2. according to the described non-contact digital reisilometer of claim 1 sensor device, it is characterized in that: the displacement of a described rebound value is meant 0.75mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201025732U CN201740709U (en) | 2010-01-28 | 2010-01-28 | Sensor device of non-contact digital resiliometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201025732U CN201740709U (en) | 2010-01-28 | 2010-01-28 | Sensor device of non-contact digital resiliometer |
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| CN201740709U true CN201740709U (en) | 2011-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353281A (en) * | 2013-07-08 | 2013-10-16 | 济南朗睿检测技术有限公司 | Digital carbonization depth measuring instrument |
-
2010
- 2010-01-28 CN CN2010201025732U patent/CN201740709U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353281A (en) * | 2013-07-08 | 2013-10-16 | 济南朗睿检测技术有限公司 | Digital carbonization depth measuring instrument |
| CN103353281B (en) * | 2013-07-08 | 2016-08-24 | 济南朗睿检测技术有限公司 | A kind of digital carbonization depth measuring instrument |
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