CN205619914U - A device for examineing and determine cover to reinforcement thickness gauge - Google Patents
A device for examineing and determine cover to reinforcement thickness gauge Download PDFInfo
- Publication number
- CN205619914U CN205619914U CN201620453736.9U CN201620453736U CN205619914U CN 205619914 U CN205619914 U CN 205619914U CN 201620453736 U CN201620453736 U CN 201620453736U CN 205619914 U CN205619914 U CN 205619914U
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- China
- Prior art keywords
- hole
- thickness
- reinforcing bar
- monitor station
- test table
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- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
Abstract
The utility model discloses a device for examineing and determine cover to reinforcement thickness gauge by examine test table and the base seat is formed, examines test table for the marble material, and the base be wooden, examine test table and go up to open to have and be used for placing the inspection hole that detects with the reinforcing bar, the distribution in hole guarantee every hole to examining the test table upper surface apart from the imbalance, and every inspection hole does not have the overlapping in the X orientation, examine the plane degree <= 0.04mm of test table upper surface. The utility model has the advantages of easy and simple to handle, efficiency is examined and determine to effective the improvement, but wide application in cover to reinforcement thickness gauge's precision calibration.
Description
Technical field:
This utility model relates to a kind of device for examining and determine thickness of protection tier measuring instrument, refers specifically to the testing stand for assay calibration thickness of protection tier measuring instrument.
Background technology:
Thickness of protection tier measuring instrument; it is to use electromagnetic principle at the bottom of cover to reinforcement thickness and bar diameter carries out Non-Destructive Testing; the probe transmission of electromagnetic signals of cover to reinforcement measuring instrument; in protective layer, reinforcing bar produces secondary induced field; accepted by probe; after instrument processes, obtain the measured value of thickness of protection tier or bar diameter.Instrument can be also used for measuring the distribution of reinforcing bar.
Thickness of protection tier measuring instrument is widely used in the examination of engineering construction quality, in the assessment building safety of structure and durability, the fields such as the detection of quantity of reinforcement, there is extremely important effect, calibrating to it, national metrological verification regulations " JJF-1224-2009 " has clear and definite regulation, need measurement reproducibility and the error of indication of periodic detection thickness of protection tier measuring instrument, to ensure the accuracy of its measured value, the calibration method taked is the calibrated bolck with thickness of protection tier measuring instrument repetitive measurement different size to be measured and reinforcing bar, the data that record obtains, verification result is obtained after again data being processed.This traditional measuring method needs substantial amounts of repetitive operation, and workload is big, time and effort consuming, examines and determine inefficiency.
Therefore, it is necessary to existing calibration method is improved, need a special measurement assay device, come more convenient, exactly thickness of protection tier measuring instrument is carried out calibration operation.
Summary of the invention:
In order to overcome the defect examining and determine mode at present, this utility model provides the device of a kind of special calibrating thickness of protection tier measuring instrument, simplifies loaded down with trivial details verification step.
nullA kind of device for examining and determine thickness of protection tier measuring instrument，It includes consisting of part: base，Monitor station，The detection hole extending transversely through marble countertop is had on monitor station，Detection hole has 12，3 one group，Often group diameter is respectively 12mm、16mm、25mm and 25mm，Each detection hole to ensure the most misaligned，Interfere in order to avoid producing during detection，12mm detection pitch-row is less than 40mm from monitor station surface distance，16mm detection pitch-row less than 60mm and is more than 40mm from monitor station surface distance，25mm detects two groups of hole，First group for closely detecting hole，Distance monitor station upper surface distance is less than 150mm more than 60mm，Second group for detecting hole at a distance，Distance monitor station upper surface is less than 180mm more than 150mm.
The beneficial effects of the utility model: special thickness of protection tier measuring instrument assay device is provided, the verification step repeated in a large number is realized in set of device, decreases workload, improve work efficiency.
Accompanying drawing illustrates:
Fig. 1 is front schematic view of the present utility model
Schematic perspective view when Fig. 2 is to use monitor station to examine and determine
Wherein, 1 is base, and 2 is monitor station, and 3 is that 12mm detects hole, and 4 is that 16mm detects hole, and 5 is that 25mm detects hole, and 6 is that 25mm detects hole；7 is 12mm standard reinforcing bar, and 8 is 16mm standard reinforcing bar, and 9 is 25mm standard reinforcing bar；10 is thickness of protection tier measuring instrument to be measured.
Detailed description of the invention:
Below in conjunction with the accompanying drawings and detailed description of the invention, thickness of protection tier measuring instrument assay device of the present utility model is described in further detail.
As it is shown in figure 1, this utility model includes base 1, monitor station 2, monitor station 2 is marble material, and monitor station 2 has the detection hole running through monitor station, and detection hole has 12,3 one group, totally four groups, it is respectively as follows: the detection hole 3 of diameter 12mm, the detection hole 4 of diameter 16mm, the closely detection hole 5 of diameter 25mm, the detection hole 6 of remote diameter 25mm, each detection hole to ensure the most misaligned, interferes in order to avoid producing during detection.12mm detection hole 3 is less than 40mm apart from monitor station surface distance, 16mm detection hole 4 less than 60mm and is more than 40mm apart from monitor station surface distance, closely 25mm detects hole 5 apart from monitor station upper surface distance more than 60mm, less than 150mm, remote 25mm detection hole 6 is more than 150mm apart from monitor station upper surface, less than 180mm；Further, each detection hole is unequal to the distance of upper surface.The material of base 1 is wood materials.
Such as Fig. 2; also need during detection to use 12mm standard reinforcing bar 7 one; 16mm standard reinforcing bar 8 one; the standard reinforcing bar of 25mm 9 one, thickness of protection tier measuring instrument 10 to be measured, by 12mm standard reinforcing bar 7; 15mm standard reinforcing bar 8; 25mm standard reinforcing bar 9 is respectively put in the detection hole of correspondence, uses thickness of protection tier measuring instrument, carries out the measurement of thickness of protection tier and bar diameter from the upper surface of monitor station 2.
During work, first thickness of protection tier measuring instrument is configured and initializes.Test environment conditions is with reference to the regulation in " JJF-1224-2009 " 6.1.The specific implementation method using this utility model calibrating thickness of protection tier measuring instrument is as follows:
(1) thickness of protection tier measuring instrument measurement reproducibility calibrating:
As shown in Figure 2; the thickness of protection tier measuring instrument 10 adjusted is placed on monitor station upper surface; 12mm standard reinforcing bar 7 is put in 12mm detection hole 3; detector 8 is directed at the position at reinforcing bar 7 place; according to the regulation in " JJF-1224-2009 " 7.1.1; continuously, marble slab thickness 9 times above measurement standard reinforcing bar, draw the measurement reproducibility calibration value of thickness of protection tier measuring instrument.
(2) cover to reinforcement error of indication calibrating:
The hole 3 calibration point as 12mm standard reinforcing bar 7 is detected using first group of 12mm; 12mm standard reinforcing bar 7 is sequentially placed among three detection holes; according to the regulation in " JJF-1224-2009 " 7.2.1.1; measure the thickness of protection tier measured value of each calibration point; compare to the actual range of monitor station upper surface with each measured hole; obtain the error of indication of this point, take in each point error of indication error of indication of maximum absolute value as last certified value.Similarly; take second group of 16mm and detect the calibration point that hole 4 is 16mm standard reinforcing bar; 3rd group of 25mm detection hole 5 is the calibration point of in-plant 25mm standard reinforcing bar; 4th group of 25mm detection hole 6 is the calibration point of remote 25mm standard reinforcing bar, measures the protective layer thickness error of indication that can obtain 16mm reinforcing bar 8 and 25mm reinforcing bar 9.
(3) bar diameter error of indication calibrating:
According to the regulation in " JJF-1224-2009 " 7.2.1.2, measure the diameter measurements of the 3 kinds of reinforcing bars 7,8,9 being placed in corresponding detection hole, measured value is compared with reinforcing bar actual value, obtains the error of indication value of bar diameter
Error of indication Δ computing formula is as follows:
Δ=h-ha
The measured value of the accredited instrument of h-, mm.
ha-reinforcing bar is to the actual (real) thickness value of monitor station upper surface, mm.
Claims (1)
1., for examining and determine a device for thickness of protection tier measuring instrument, it is made up of base and monitor station, it is characterised in that on monitor station
Having the detection hole for placing detection reinforcing bar, the distribution in hole ensures that each hole is unequal to the distance of monitor station upper surface,
And each detection hole does not has overlap in the X direction, the flatness≤0.04mm of monitor station upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620453736.9U CN205619914U (en) | 2016-05-16 | 2016-05-16 | A device for examineing and determine cover to reinforcement thickness gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620453736.9U CN205619914U (en) | 2016-05-16 | 2016-05-16 | A device for examineing and determine cover to reinforcement thickness gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205619914U true CN205619914U (en) | 2016-10-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620453736.9U Expired - Fee Related CN205619914U (en) | 2016-05-16 | 2016-05-16 | A device for examineing and determine cover to reinforcement thickness gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205619914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708597A (en) * | 2019-02-13 | 2019-05-03 | 郭瀚 | Reinforcing bar stringer applied to the experiment of reinforcing bar survey meter data correction |
| CN110274563A (en) * | 2019-07-25 | 2019-09-24 | 中国计量大学 | Non-metal board calibrator error-detecting calibrating installation and method |
-
2016
- 2016-05-16 CN CN201620453736.9U patent/CN205619914U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708597A (en) * | 2019-02-13 | 2019-05-03 | 郭瀚 | Reinforcing bar stringer applied to the experiment of reinforcing bar survey meter data correction |
| CN110274563A (en) * | 2019-07-25 | 2019-09-24 | 中国计量大学 | Non-metal board calibrator error-detecting calibrating installation and method |
| CN110274563B (en) * | 2019-07-25 | 2024-04-05 | 中国计量大学 | Error detection and calibration device and method for non-metal plate thickness gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20190516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |