CN105547128A - Inductance type sediment thickness measurement instrument and measuring method - Google Patents
Inductance type sediment thickness measurement instrument and measuring method Download PDFInfo
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- CN105547128A CN105547128A CN201610088614.9A CN201610088614A CN105547128A CN 105547128 A CN105547128 A CN 105547128A CN 201610088614 A CN201610088614 A CN 201610088614A CN 105547128 A CN105547128 A CN 105547128A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
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Abstract
The invention discloses an inductance type sediment thickness measurement instrument and a measuring method. The inductance type sediment thickness measurement instrument mainly comprises a conducting material ring, a detection column and an inductance detection display device. An inductance coil set formed by connecting multiple inductance coils in series is arranged in the detection column, the inductance coils are vertically arranged from sparse to dense or from dense to sparse, the detection column penetrates through the conducting material ring and can slide in the vertical direction in a reciprocating mode, and therefore a probe fixed to the detection column can be driven to be inserted into the lower bottom face of a sediment layer for sediment thickness measurement. The measuring method of the measuring instrument carries out position detection based on the electromagnetic induction principle between the conducting material ring and the inductance coil set, interference from external influences is not likely to be caused, detection stability and reliability are good, high measuring precision is achieved, measuring operation is convenient, the measuring result can be visually displayed through the inductance detection display device, high practicality is achieved, and the defect of an existing sediment thickness measurement technology is well overcome.
Description
Technical field
The present invention relates to drilled pile sediment thickness field of measuring technique in engineering construction, particularly relate to a kind of inductance type sediment thickness measuring instrument and measuring method.
Background technology
The thickness of bored concrete pile pile bottom sediment can affect the construction quality of bored concrete pile.Existing relative national standards and specification have clear and definite and strict regulation to sediment thickness, as for " technical code for building pile foundation " (JGJ94-2008), mud off pore-creating filling pile pile bottom sediment thickness indication should meet: 1) end-bearing pile should not be greater than 50mm; 2) Piles for Friction Piles should not be greater than 100mm; 3) resistance to plucking, water resistant are put down low stake and should not be greater than 200mm.
At present, the measurement of the sediment thickness before pile generally adopts weight method or chaining pin to survey cake method.Weight method testing tool is taper plummet, and construction worker puts down weight and enters boring, and record depth data when weight touches at the bottom of sediment end face and hole at twice, the difference of two secondary data is sediment thickness.Cake method surveyed by chaining pin is use chaining pin and survey the maximum submergence depth of cake respectively at the bottom of measured hole, and difference is between the two sediment thickness.Existing method is affected by human factors greatly, complex operation, and measuring error is large, and practicality is not strong.
Summary of the invention
For above shortcomings in prior art, the object of the present invention is to provide a kind of inductance type sediment thickness measuring instrument, its stability and good reliability, can be measured sediment thickness easily by shirtsleeve operation, and measuring accuracy is high, to the intuitive display of sediment thickness testing result, defect existing in existing sediment thickness measuring technique can be overcome.
For solving the problems of the technologies described above, present invention employs following technical scheme:
A kind of inductance type sediment thickness measuring instrument, comprises a conductive material ring, and an entirety is rectangular column and the vertical test column arranged, and an inductance detection display device; Described test column inside is vertically provided with telefault group along it, vertical in by dredging close or being in series by close multiple telefaults of arranging to thin mode and forming by along test column of described telefault group; The overall horizontally set of described conductive material ring, and be fixedly supported in the measurement back up pad of horizontally set by connecting rod, described measurement back up pad is for lying in measured sediment upper surface; Described test column to be located in conductive material ring and vertically can to come and go slip, test column is fixedly connected with vertically to the probe of downward-extension by probe support, described probe can make along with the vertical slip upwards of test column the bottom of probe by carry to measurement planimetric position place, back up pad place or more, and can make along with the vertically downward slip of test column the bottom of probe by under be inserted to and measure below back up pad place plane, under be inserted to sediment layer bottom surface position and carry out sediment thickness measurement; Described inductance detection display device is electrically connected with the telefault group of test column inside, telefault group for being ordered about test column inside by output AC electricity produces alternating magnetic field, and detect the inductance value of telefault group, according to the relative position of inductance value determination conductive material ring outside test column detected, and vertically slide according to test column and make the bottom of probe by under be inserted to sediment layer bottom surface position time the relative position of conductive material ring outside test column carry out converting process and obtain measured sediment thickness value, and to be shown.
In above-mentioned inductance type sediment thickness measuring instrument, specifically, described test column comprises the sleeve pipe of the vertical rectangular tubular arranged, and the bottom of sleeve pipe is carried out to the bottom cover of capping, and is vertically stacked and is arranged in sleeve pipe and is vertically stacked telefault group in series by multiple telefault.
In above-mentioned inductance type sediment thickness measuring instrument, preferably, the material of described sleeve pipe is permeability magnetic material.
In above-mentioned inductance type sediment thickness measuring instrument, preferably, the probe that described test column is fixedly connected with by probe support has many, and is uniformly distributed setting along the circumference of test column transversal section.
In above-mentioned inductance type sediment thickness measuring instrument, as improvement project, described measurement back up pad corresponds to probe position place and be provided with probe pilot hole, the aperture of described probe pilot hole and the diameter of probe xsect match, and make probe to pass probe pilot hole and vertically can come and go in probe guiding to slide.
In above-mentioned inductance type sediment thickness measuring instrument, preferably, described inductance detection display device is fixedly mounted on the top of test column, and the shell of inductance detection display device is also provided with carrying handle or suspension ring.
In above-mentioned inductance type sediment thickness measuring instrument, preferably, prestore in described inductance detection display device and record inductance detection demarcation information, described inductance detection demarcates the relative position of conductive material ring outside test column corresponding when information detects different induction value in order to indicate, and in inductance detection demarcation information, test column is vertically slided and makes the lower end part of probe conductive material ring relative position outside test column in time measuring planimetric position place, back up pad place be labeled as sediment thickness value at zero point, test column is vertically slided make the bottom of probe by under be inserted to the different depth measuring below back up pad place plane time the relative position of conductive material ring outside test column be labeled as and be worth the sediment thickness detected value that position has respective depth difference zero point with described sediment thickness, inductance detection display device is " according to the relative position of inductance value determination conductive material ring outside test column detected, and vertically slide according to test column and make the bottom of probe by under be inserted to sediment layer bottom surface position time the relative position of conductive material ring outside test column carry out converting process and obtain measured sediment thickness value " concrete mode be: under inductance detection display device to order about the state that test column internal inductance coil groups produces alternating magnetic field respectively by output AC electricity, test column is vertically slided and make the bottom of probe by under be inserted to sediment layer bottom surface position time the inductance value of telefault group that detects carry out coupling with the inductance detection information of demarcation and contrast, the sediment thickness detected value matched is defined as measured sediment thickness value.
Correspondingly, present invention also offers the method using above-mentioned inductance type sediment thickness measuring instrument to carry out sediment thickness measurement operation; For this reason, present invention employs following technical scheme:
A kind of sediment thickness measuring method, above-mentioned inductance type sediment thickness measuring instrument is adopted to carry out sediment thickness measurement, and prestore in the inductance detection display device of inductance type sediment thickness measuring instrument record inductance detection demarcate information, described inductance detection demarcates the relative position of conductive material ring outside test column corresponding when information detects different induction value in order to indicate, and in inductance detection demarcation information, test column is vertically slided and makes the lower end part of probe conductive material ring relative position outside test column in time measuring planimetric position place, back up pad place be labeled as sediment thickness value at zero point, test column is vertically slided make the bottom of probe by under be inserted to the different depth measuring below back up pad place plane time the relative position of conductive material ring outside test column be labeled as and be worth the sediment thickness detected value that position has respective depth difference zero point with described sediment thickness.
This sediment thickness measuring method specifically comprises the steps:
1) adjust the relative position of test column and conductive material ring in inductance type sediment thickness measuring instrument, make the lower end part of probe in measurement planimetric position place, back up pad place;
2) inductance type sediment thickness measuring instrument is placed on measured sediment position, the measurement back up pad of inductance type sediment thickness measuring instrument is lain on measured sediment upper surface and test column is in vertical state;
3) test column of operating induction formula sediment thickness measuring instrument vertical slide downward in conductive material ring, probe is driven to insert sediment layer downwards, until stop when the bottom of probe is inserted to the bottom surface position of sediment layer, then detect and record the inductance value of the telefault group in current detection post by inductance detection display device, as inductance detection value during measurement sediment layer bottom surface;
4) inductance detection value when measuring sediment layer bottom surface is carried out coupling with the inductance detection information of demarcation and is contrasted by the inductance detection display device of inductance type sediment thickness measuring instrument, determine measured sediment thickness value according to the sediment thickness detected value matched, and shown.
In above-mentioned sediment thickness measuring method, as a kind of preferred version, described step 1) ~ 3) repeat repeatedly, obtain inductance detection value during multiple measurement sediment layer bottom surface; In described step 4), inductance detection value during each measurement sediment layer bottom surface obtained is carried out coupling with the inductance detection information of demarcation and is contrasted by the inductance detection display device of inductance type sediment thickness measuring instrument respectively, and to each sediment thickness detected value averaged matched, finally show the sediment thickness detected value and mean value measured for each time.
In above-mentioned sediment thickness measuring method, as another kind of preferred version, described step 1) ~ 3) repeat repeatedly, obtain inductance detection value during multiple measurement sediment layer bottom surface; In described step 4), inductance detection value during each measurement sediment layer bottom surface obtained is carried out coupling with the inductance detection information of demarcation and is contrasted by the inductance detection display device of inductance type sediment thickness measuring instrument respectively, and the maximal value in each sediment thickness detected value matched is defined as measured sediment thickness value, shown.
Compared to prior art, the present invention has following beneficial effect:
1, inductance type sediment thickness measuring instrument of the present invention, the principle that make use of electromagnetic induction realizes sediment thickness and measures, and its design is ingenious, reliable, is easy to assembling and operation use.
2, the method utilizing inductance type sediment thickness measuring instrument of the present invention to carry out sediment thickness measurement operates very simple, only need by operation detection post in conductive material ring vertical slip and drive test column the linking probe vertically movement fixed, probe is used to insert detection sediment layer bottom surface position, just can obtain measured sediment thickness value to be shown, its measurement is easy to use, and be affected by human factors little, testing result is objective, true.
3, inductance type sediment thickness measuring instrument of the present invention and measuring method thereof, because the electromagnetic induction principle enforcing location that by means of between conductive material ring and telefault group detects, be not vulnerable to the interference of foeign element, therefore the stability detected and good reliability, higher measuring accuracy can be possessed simultaneously, and its measurement result can be shown intuitively by inductance detection display device, practical.
Accompanying drawing explanation
Fig. 1 is the perspective view of a kind of embodiment of inductance type sediment thickness measuring instrument of the present invention.
Fig. 2 is the sectional structure chart of test column in inductance type sediment thickness measuring instrument of the present invention.
Fig. 3 is starting to measure the state cross-sectional schematic of lower end part in time measuring planimetric position place, back up pad place of front probe for the inductance type sediment thickness measuring instrument of the present invention shown in Fig. 1.
Fig. 4 is inserted to the state cross-sectional schematic behind the bottom surface position of sediment layer for the inductance type sediment thickness measuring instrument bottom of probe when measuring of the present invention shown in Fig. 1.
Fig. 5 is inserted to the state perspective view behind the bottom surface position of sediment layer for the inductance type sediment thickness measuring instrument bottom of probe when measuring of the present invention shown in Fig. 1.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Fig. 1 shows the structural representation of a kind of specific embodiments of inductance type sediment thickness measuring instrument of the present invention.As shown in Figure 1, inductance type sediment thickness measuring instrument of the present invention comprises a conductive material ring 7, entirety and is rectangular column and the vertical test column 1 arranged, and an inductance detection display device 2; Described test column 1 inside is vertically provided with telefault group along it, vertical in by dredging close or being in series by close multiple telefaults of arranging to thin mode and forming by along test column 1 of described telefault group; The overall horizontally set of described conductive material ring 7, and be fixedly supported in the measurement back up pad 8 of horizontally set by connecting rod 9, described measurement back up pad 8 is for lying in measured sediment upper surface; Described test column 1 to be located in conductive material ring 7 and vertically can to come and go slip, test column 1 is fixedly connected with vertically to the probe 6 of downward-extension by probe support 5, described probe 6 can make along with the vertical slip upwards of test column 1 bottom of probe by carry to measurement planimetric position place, back up pad 8 place or more, and can make along with the vertically downward slip of test column 1 bottom of probe by under be inserted to and measure below back up pad 8 place plane, under be inserted to sediment layer bottom surface position and carry out sediment thickness measurement; Described inductance detection display device 2 is electrically connected with the telefault group of test column 1 inside, telefault group for being ordered about test column 1 inside by output AC electricity produces alternating magnetic field, and vertically slide according to test column 1 and make the bottom of probe by under be inserted to sediment layer bottom surface position time the relative position of conductive material ring 7 outside test column 1 carry out converting process and obtain measured sediment thickness value, and to be shown.
Inductance type sediment thickness measuring instrument of the present invention, make use of the principle of electromagnetic induction, when test column vertically slides into diverse location in conductive material ring, the telefault group that test column inside is vertically arranged is after alternating current orders about lower generation alternating magnetic field, electromagnetic induction can be produced to conductive material ring near the telefault of conductive material ring among telefault group, thus the induced field producing induction current and then generation correspondence in conductive material ring reacts on telefault, the inductance value of the telefault be near conductive material ring is changed, thus affect the inductance value of whole telefault group, and, because the multiple telefaults forming telefault group are vertical in by dredging close or being arranged to thin mode by close along test column, during the diverse location making conductive material ring be arranged in outside test column, situation is affected on the inductance value of telefault group telefault different, and then cause the inductance value of whole telefault group that different change also occurs, and between the diverse location of conductive material ring outside test column and the different induction value of test column internal inductance coil groups, there is one-to-one relationship, therefore, inductance detection display device can, by detecting the situation of change of the inductance value of telefault group, judge to determine the relative position of conductive material ring outside test column accordingly, and in inductance type sediment thickness measuring instrument, measure back up pad for lying in measured sediment upper surface, the vertical slip of test column in conductive material ring can drive its probe be fixedly connected with vertically to move, therefore lower end part conductive material ring relative position outside test column in time measuring planimetric position place, back up pad place of probe can be demarcated in advance, represent the detection position of sediment layer upper surface, then use probe insert detection sediment layer bottom surface position and determine the now relative position of conductive material ring outside test column when measuring, represent the detection position of sediment layer bottom surface, thus, just measured sediment thickness value can be determined according to the gap of these two relative positions, realize sediment thickness to measure.
In inductance type sediment thickness measuring instrument of the present invention, conductive material ring is fixedly installed on to be measured in back up pad, and design vertical test column slided in conductive material ring is fixedly connected with probe by probe support, object is as counterweight by the weight of test column and probe support, thus can make to be more convenient for when measurement operates probe inserting in sediment layer by counterweight effect, even can directly directly make probe insert in sediment layer by the counterweight effect of test column and probe support, make measurement more convenient to operate.During specific design; conductive material ring can adopt the ring bodies component be made up of the conductive material that copper, aluminium etc. are good; also can adopt and make many brake cables coil structures component by the conductive material that copper, aluminium etc. are good; the shell that the outside of conductive material ring can also adopt non-conducting material to make is encapsulated, in order to protect the work of conductive material ring.The structural design of test column 1 as shown in Figure 2, it comprises the sleeve pipe 10 of the vertical rectangular tubular arranged, the bottom of sleeve pipe is carried out to the bottom cover 11 of capping, and be vertically stacked and be arranged in sleeve pipe and be vertically stacked telefault group 12 in series by multiple telefault; Wherein, sleeve pipe 10 material can adopt non-magnet material, but preferably adopt permeability magnetic material, can to conduct better by sleeve pipe like this and the electromagnetic induction strengthened between conductive material ring 7 and telefault group 12 affects, and then make the inductance value change of telefault group under the impact of conductive material ring more obvious, be easier to detect.And the bottom of probe is preferably designed as syringe needle shape tip, sediment layer of being more convenient for probe to insert like this; In addition, as shown in Figure 1, the probe 6 that test column 1 is fixedly connected with by probe support 5 is preferably designed with many, 3 probes are designed to shown in Fig. 1, the probe of more can certainly be designed, like this can by multiple location points of many probe detection sediment layers, and then make measurement result more accurately, reliably, and the many probes 6 of design are preferably uniformly distributed setting along the circumference of test column 1 transversal section, can improve like this when test column 1 moves and drive each probe 6 to move the stability of strutting system inserting sediment layer.In addition, as shown in Figure 1, measure in back up pad 8 and be preferably also provided with probe pilot hole corresponding to probe 6 position place, if probe has many, the probe pilot hole then measuring back up pad then correspondence arranges multiple, the aperture of probe pilot hole and the diameter of probe 6 xsect match, make probe 6 to pass probe pilot hole and vertically can come and go in probe guiding to slide, like this, when carrying out sediment thickness and measuring, probe pilot hole can play the effect of leading to probe, and then probe can be avoided in the process inserting sediment layer downwards by bending easily, reach the guiding protection object to probe.
In inductance type sediment thickness measuring instrument of the present invention, can internal battery in inductance detection display device, for each electronic component in himself and measuring instrument is powered.The Position Design of inductance detection display device does not have special requirement from practical function, can adopt the design of arranging with other component split, can be combined with other component yet and design; And as a kind of preferred design, as shown in Figure 1, inductance detection display device 2 is fixedly mounted on the top of test column 1, can guarantee that inductance detection display device 2 is in higher position all the time like this, when at the construction field (site) sediment thickness being measured, can observe by the display screen 3 of inductance detection display device 2 the sediment thickness value that it measures display more easily; And, the shell of inductance detection display device 2 can also be provided with suspension ring 4, or a design carrying handle, draw suspension ring so that hung by rope, or by gripping carrying handle, drive inductance detection display device 2 and test column 1 entirety vertically to reciprocate to carry out measurement operation.
And in Treatment Design for inductance detection display device in inductance type sediment thickness measuring instrument of the present invention, multiple different Treatment Design form can be had, as long as the measuring principle according to inductance type sediment thickness measuring instrument of the present invention is differentiated and the process that converts the inductance value information detected, just can realize sediment thickness and measure.And as the preferred implementation of one of the present invention, can prestore in inductance detection display device and record inductance detection demarcation information, this inductance detection demarcates the relative position of conductive material ring outside test column corresponding when information detects different induction value in order to indicate, and in inductance detection demarcation information, test column is vertically slided and makes the lower end part of probe conductive material ring relative position outside test column in time measuring planimetric position place, back up pad place be labeled as sediment thickness value at zero point, test column is vertically slided make the bottom of probe by under be inserted to the different depth measuring below back up pad place plane time the relative position of conductive material ring outside test column be labeled as and be worth the sediment thickness detected value that position has respective depth difference zero point with described sediment thickness, this inductance detection is demarcated information and can be demarcated by state in advance and obtain, like this, inductance detection display device is " according to the relative position of inductance value determination conductive material ring outside test column detected, and according to test column vertically slide make the bottom of probe by under be inserted to sediment layer bottom surface position time the relative position of conductive material ring outside test column process of carrying out converting obtain measured sediment thickness value " concrete mode then can be designed as: under inductance detection display device to order about the state that test column internal inductance coil groups produces alternating magnetic field respectively by output AC electricity, test column is vertically slided and make the bottom of probe by under be inserted to sediment layer bottom surface position time the inductance value of telefault group that detects carry out coupling with the inductance detection information of demarcation and contrast, just the sediment thickness detected value matched can be defined as measured sediment thickness value, the check processing process of inductance detection display device can be made so more simple, be easier to realize, also more be conducive to improving check processing efficiency simultaneously, inductance detection display device can be processed faster and obtain testing result.
Thus, adopt inductance type sediment thickness measuring instrument of the present invention to carry out the concrete operations flow process of sediment thickness measurement, then comprise the steps:
1) adjust the relative position of test column and conductive material ring in inductance type sediment thickness measuring instrument, make the lower end part of probe in measurement planimetric position place, back up pad place.Fig. 3 shows the inductance type sediment thickness measuring instrument of the present invention shown in Fig. 1 the state cross-sectional schematic of the lower end part starting to measure front probe in time measuring planimetric position place, back up pad place (produce and obscure, the inductance detection display device in Fig. 3 in not shown measuring instrument for avoiding cut-open view display structure too complicated).
2) inductance type sediment thickness measuring instrument is placed on measured sediment position, the measurement back up pad of inductance type sediment thickness measuring instrument is lain on measured sediment upper surface and test column is in vertical state;
3) test column of operating induction formula sediment thickness measuring instrument vertical slide downward in conductive material ring, probe is driven to insert sediment layer downwards, until stop when the bottom of probe is inserted to the bottom surface position of sediment layer, then detect and record the inductance value of the telefault group in current detection post by inductance detection display device, as inductance detection value during measurement sediment layer bottom surface.Fig. 4 and Fig. 5 respectively illustrates the inductance type sediment thickness measuring instrument bottom of probe when measuring of the present invention shown in Fig. 1 and is inserted to the state cross-sectional schematic behind the bottom surface position of sediment layer and perspective view.
4) inductance detection value when measuring sediment layer bottom surface is carried out coupling with the inductance detection information of demarcation and is contrasted by the inductance detection display device of inductance type sediment thickness measuring instrument, determine measured sediment thickness value according to the sediment thickness detected value matched, and shown.
In Fig. 3 ~ Fig. 5, the implication of each label is identical with Fig. 1 with Fig. 2.
Can be seen by above-mentioned flow process, the operation adopting inductance type sediment thickness measuring instrument of the present invention to carry out sediment thickness measurement is very simple, only need by operation detection post in conductive material ring vertical slip and drive test column the linking probe vertically movement fixed, probe is used to insert detection sediment layer bottom surface position, just can obtain measured sediment thickness value to be shown, its measurement is easy to use, and is affected by human factors little, and testing result is objective, true.
And in measuring process, if produce accidental error in order to avoid single measurement, the mode that inductance type sediment thickness measuring instrument of the present invention takes multiple measurements can also be adopted, realizing sediment thickness measures, its concrete implementation is, step 1) ~ 3 by above-mentioned sediment thickness measuring method) repeat repeatedly, obtain inductance detection value during multiple measurement sediment layer bottom surface, and in step 4), inductance detection value during each measurement sediment layer bottom surface obtained is carried out coupling with the inductance detection information of demarcation and is contrasted by the inductance detection display device of inductance type sediment thickness measuring instrument respectively, and then measure requirement according to different actual measurements, can to each sediment thickness detected value averaged matched to determine measured sediment thickness value, finally show the sediment thickness detected value and mean value measured for each time, or only the maximal value in each sediment thickness detected value matched is defined as measured sediment thickness value to be shown.Thus, just by after repetitive measurement, automatically calculated by the inductance detection display device of inductance type sediment thickness measuring instrument and average or get maximal value, determine that measured sediment thickness value is shown, effectively can reduce the accidental error even avoiding measuring, guarantee the accuracy measured further.
In sum, can see, inductance type sediment thickness measuring instrument of the present invention and measuring method thereof, because the electromagnetic induction principle enforcing location that by means of between conductive material ring and telefault group detects, be not vulnerable to the interference of foeign element, therefore the stability detected and good reliability, simultaneously because the multiple telefaults forming telefault group are vertical in by dredging close or being arranged to thin mode by close along test column, make, between the diverse location of conductive material ring outside test column and the different induction value of test column internal inductance coil groups, there is one-to-one relationship, therefore inductance type sediment thickness measuring instrument of the present invention can possess higher measuring accuracy, and its measurement result can be shown intuitively by inductance detection display device, practical.Visible, inductance type sediment thickness measuring instrument of the present invention and measuring method thereof, overcome existing sediment thickness measuring technique well and be affected by human factors the defect comparatively large, complex operation, measuring accuracy are not high, instrument practicality is not strong.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. an inductance type sediment thickness measuring instrument, is characterized in that, comprises a conductive material ring (7), and an entirety is rectangular column and the vertical test column (1) arranged, and an inductance detection display device (2); Described test column (1) inside is vertically provided with telefault group along it, vertical in by dredging close or being in series by close multiple telefaults of arranging to thin mode and forming by along test column (1) of described telefault group;
The overall horizontally set of described conductive material ring (7), and be fixedly supported in the measurement back up pad (8) of horizontally set by connecting rod (9), described measurement back up pad (8) is for lying in measured sediment upper surface;
Described test column (1) to be located in conductive material ring (7) and vertically can to come and go slip, test column (1) is fixedly connected with vertically to the probe (6) of downward-extension by probe support (5), described probe (6) can make along with the vertical slip upwards of test column (1) bottom of probe by carry to measurement back up pad (8) planimetric position, place place or more, and can make along with the vertically downward slip of test column (1) bottom of probe by under be inserted to and measure below back up pad (8) place plane, for under be inserted to sediment layer bottom surface position and carry out sediment thickness measurement,
The telefault group that described inductance detection display device (2) is inner with test column (1) is electrically connected, alternating magnetic field is produced for being ordered about the inner telefault group of test column (1) by output AC electricity, and detect the inductance value of telefault group, according to the relative position of inductance value determination conductive material ring (7) detected in test column (1) outside, and vertically slide according to test column (1) and make the bottom of probe by under be inserted to sediment layer bottom surface position time conductive material ring (7) carry out converting process at the relative position in test column (1) outside and obtain measured sediment thickness value, and shown.
2. inductance type sediment thickness measuring instrument according to claim 1, it is characterized in that, described test column (1) comprises the sleeve pipe (10) of the vertical rectangular tubular arranged, the bottom of sleeve pipe is carried out to the bottom cover (11) of capping, and be vertically stacked and be arranged in sleeve pipe and be vertically stacked telefault group (12) in series by multiple telefault.
3. inductance type sediment thickness measuring instrument according to claim 2, is characterized in that, the material of described sleeve pipe (10) is preferably permeability magnetic material.
4. inductance type sediment thickness measuring instrument according to claim 1, is characterized in that, the probe (6) that described test column (1) is fixedly connected with by probe support (5) has many, and is uniformly distributed setting along the circumference of test column (1) transversal section.
5. inductance type sediment thickness measuring instrument according to claim 1, it is characterized in that, upper probe (6) the position place that corresponds to of described measurement back up pad (8) is provided with probe pilot hole, the aperture of described probe pilot hole and the diameter of probe (6) xsect match, and make probe (6) to pass probe pilot hole and vertically can come and go in probe guiding to slide.
6. inductance type sediment thickness measuring instrument according to claim 1, it is characterized in that, described inductance detection display device (2) is fixedly mounted on the top of test column (1), and the shell of inductance detection display device (2) is also provided with carrying handle or suspension ring.
7. inductance type sediment thickness measuring instrument according to claim 1, it is characterized in that, prestore in described inductance detection display device and record inductance detection demarcation information, described inductance detection demarcates the relative position of conductive material ring outside test column corresponding when information detects different induction value in order to indicate, and in inductance detection demarcation information, test column is vertically slided and makes the lower end part of probe conductive material ring relative position outside test column in time measuring planimetric position place, back up pad place be labeled as sediment thickness value at zero point, test column is vertically slided make the bottom of probe by under be inserted to the different depth measuring below back up pad place plane time the relative position of conductive material ring outside test column be labeled as and be worth the sediment thickness detected value that position has respective depth difference zero point with described sediment thickness, inductance detection display device " according to the relative position of inductance value determination conductive material ring outside test column detected, and vertically slide according to test column and make the bottom of probe by under be inserted to sediment layer bottom surface position time the relative position of conductive material ring outside test column carry out converting process and obtain measured sediment thickness value " concrete mode be:
Under the state that inductance detection display device orders about test column internal inductance coil groups generation alternating magnetic field respectively by output AC electricity, test column is vertically slided and make the bottom of probe by under be inserted to sediment layer bottom surface position time the inductance value of telefault group that detects carry out coupling with the inductance detection information of demarcation and contrast, the sediment thickness detected value matched is defined as measured sediment thickness value.
8. a sediment thickness measuring method, it is characterized in that, inductance type sediment thickness measuring instrument as claimed in claim 1 is adopted to carry out sediment thickness measurement, and prestore in the inductance detection display device of inductance type sediment thickness measuring instrument record inductance detection demarcate information, described inductance detection demarcates the relative position of conductive material ring outside test column corresponding when information detects different induction value in order to indicate, and in inductance detection demarcation information, test column is vertically slided and makes the lower end part of probe conductive material ring relative position outside test column in time measuring planimetric position place, back up pad place be labeled as sediment thickness value at zero point, test column is vertically slided make the bottom of probe by under be inserted to the different depth measuring below back up pad place plane time the relative position of conductive material ring outside test column be labeled as and be worth the sediment thickness detected value that position has respective depth difference zero point with described sediment thickness.
This sediment thickness measuring method specifically comprises the steps:
1) adjust the relative position of test column and conductive material ring in inductance type sediment thickness measuring instrument, make the lower end part of probe in measurement planimetric position place, back up pad place;
2) inductance type sediment thickness measuring instrument is placed on measured sediment position, the measurement back up pad of inductance type sediment thickness measuring instrument is lain on measured sediment upper surface and test column is in vertical state;
3) test column of operating induction formula sediment thickness measuring instrument vertical slide downward in conductive material ring, probe is driven to insert sediment layer downwards, until stop when the bottom of probe is inserted to the bottom surface position of sediment layer, then detect and record the inductance value of the telefault group in current detection post by inductance detection display device, as inductance detection value during measurement sediment layer bottom surface;
4) inductance detection value when measuring sediment layer bottom surface is carried out coupling with the inductance detection information of demarcation and is contrasted by the inductance detection display device of inductance type sediment thickness measuring instrument, determine measured sediment thickness value according to the sediment thickness detected value matched, and shown.
9. sediment thickness measuring method according to claim 8, is characterized in that, described step 1) ~ 3) repeat repeatedly, obtain inductance detection value during multiple measurement sediment layer bottom surface; In described step 4), inductance detection value during each measurement sediment layer bottom surface obtained is carried out coupling with the inductance detection information of demarcation and is contrasted by the inductance detection display device of inductance type sediment thickness measuring instrument respectively, and to each sediment thickness detected value averaged matched, finally show the sediment thickness detected value and mean value measured for each time.
10. sediment thickness measuring method according to claim 8, is characterized in that, described step 1) ~ 3) repeat repeatedly, obtain inductance detection value during multiple measurement sediment layer bottom surface; In described step 4), inductance detection value during each measurement sediment layer bottom surface obtained is carried out coupling with the inductance detection information of demarcation and is contrasted by the inductance detection display device of inductance type sediment thickness measuring instrument respectively, and the maximal value in each sediment thickness detected value matched is defined as measured sediment thickness value, shown.
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