CN204479014U - Hold grid chi slit gauge - Google Patents
Hold grid chi slit gauge Download PDFInfo
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- CN204479014U CN204479014U CN201520196388.7U CN201520196388U CN204479014U CN 204479014 U CN204479014 U CN 204479014U CN 201520196388 U CN201520196388 U CN 201520196388U CN 204479014 U CN204479014 U CN 204479014U
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Abstract
The utility model discloses a kind of appearance grid chi slit gauge, wherein, it comprises an appearance grid chi, the converter for the data-interface holding grid chi being converted to universal sensor interface be connected with the data-interface of described appearance grid chi; Described converter comprises: microprocessor, the interface conversion circuit be connected with described appearance grid chi data-interface and described microprocessor respectively, the RS485 interface be connected with described microprocessor.By connecting on appearance grid chi, to arrange one by appearance grid footage be the converter of universal sensor interface according to interface conversion, make to hold grid chi to be communicated to connect with extraneous by RS485 interface, user can change different sensors easily, reduce the production cost of production firm, and it has the advantage that data transmission efficiency is high, noise immunity good, communication distance is large to adopt the appearance grid chi slit gauge of this structure, can meet the demand of long-distance transmissions.
Description
Technical field
The utility model relates to crack detecting device, particularly relates to a kind of slit gauge with appearance grid chi.
Background technology
Capacitor grid transducer is a kind of based on variable area principle of work, can measure the capacitance digital sensor of Large travel range.It and other digital displacement transducer, as grating, inductance fm etc. are compared, have that volume is little, structure be simple, resolution and accuracy is high, measuring speed is fast, power consumption is little, cost is low, to the environment for use outstanding feature such as less demanding, therefore occupy very consequence in electronic measurement technique.Along with measuring technique is to the development in precise treatment, high speed, robotization, integrated, intelligent, economization, noncontact and multifunction direction, the application of capacitor grid transducer is more and more extensive.
Based on above-mentioned advantage, domestic and international relevant manufacturers can send out a series of capacitor grid transducer, is used widely in field of civil engineering such as railway, highway, subway, bridge, tunnel, mine, building, water conservancy dams.But existing capacitor grid transducer exists following shortcoming: its price is high, structure relative complex, poor compatibility etc. between different brands, have limited to the usable range of capacitor grid transducer.
Capacitor grid transducer is the important composition parts holding grid chi, at present, hold grid chi and apply maturation at home, it is with expansion interface, be usually used in the deformation measurement of the surface cracks such as bridge, side slope, crag, but the data-interface holding grid chis is often difficult to mate with general sensor interface, this just connects with higher leveled computing machine and forms measuring system and cause very large obstacle.Existing slit gauge is the measurement adopting the structure holding grid chi directly to carry out rock mass or slope crack distortion useless also.
Therefore, prior art haves much room for improvement and develops.
Utility model content
The purpose of this utility model is to overcome the deficiency in above-mentioned prior art, and the one provided holds grid chi slit gauge.
The technical scheme that the utility model solution prior art problem adopts is: a kind of appearance grid chi slit gauge, wherein, it comprises an appearance grid chi, the converter for the data-interface holding grid chi being converted to universal sensor interface be connected with the data-interface of described appearance grid chi;
Described converter comprises: microprocessor, the interface conversion circuit be connected with described appearance grid chi data-interface and described microprocessor respectively, the RS485 interface be connected with described microprocessor.
Below above technical scheme is further elaborated:
Further, described interface conversion circuit is electric level interface change-over circuit, for the data-interface of described appearance grid chi and the level conversion of described RS485 interface.
Further, described converter also comprises the data-carrier store and digital encoder that are connected with described microprocessor respectively.
Further, described converter is connected with a general supply module, and described RS485 interface is connected with a universal data collection processing module, and described digital sampling and processing is used for the digital signal after converter conversion described in acquisition and processing.
Further, described converter is connected with the electrostatic protection module and lightning protection module that are connected with described RS485 interface.
Further, described appearance grid chi comprises crossbeam, is fixed on the first measuring staff bottom described crossbeam, is movably arranged on the second measuring staff on described crossbeam, and described first measuring staff, the second measuring staff are for being fixed on the measured point of both sides, crack, and described crossbeam is provided with scale.
Further, described crossbeam is provided with the sensor of the distance for detecting described first measuring staff and the second measuring staff, and is connected with described sensor and is fixed on the digital display screen at described second measuring staff top.
The beneficial effects of the utility model are: by connecting on appearance grid chi, to arrange one by appearance grid footage be the converter of universal sensor interface according to interface conversion, make to hold grid chi to be communicated to connect with extraneous by RS485 interface, user can change different sensors easily, reduce the production cost of production firm, and it has the advantage that data transmission efficiency is high, noise immunity good, communication distance is large to adopt the appearance grid chi slit gauge of this structure, can meet the demand of long-distance transmissions.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that the utility model holds grid chi slit gauge embodiment.
Fig. 2 is general supply circuit diagram.
Fig. 3 holds grid chi power circuit schematic diagram.
Fig. 4 is interface conversion circuit structural representation.
Fig. 5 is microcontroller circuit structural representation.
Fig. 6 is the electrical block diagram of data-carrier store.
Fig. 7 is the electrical block diagram of digital encoder.
Fig. 8 is the electrical block diagram of RS485 interface.
Fig. 9 is the electrical block diagram of electrostatic protection module and lightning-protection module.
Figure 10 holds structural representation when grid chi slit gauge is installed.
Reference numeral:
Hold grid chi 10;
Crossbeam 110;
First measuring staff 111; Second measuring staff 112; Digital display screen 113;
Rock wall 20;
Crack 21;
First measuring point 210; Second measuring point 220.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Below with reference to drawings and the specific embodiments describe in detail the technical solution of the utility model so as clearer, understand invention essence of the present utility model intuitively.
As shown in Figure 1, one of the present utility model holds grid chi slit gauge, comprises an appearance grid chi 10, the converter for the data-interface holding grid chi 10 being converted to universal sensor interface be connected with the data-interface of described appearance grid chi 10; Concrete, described converter comprises: microprocessor, i.e. a single-chip microcomputer, the interface conversion circuit be connected with described appearance grid chi 10 data-interface and described microprocessor respectively, the RS485 interface be connected with described microprocessor.So, can convert the data-interface holding grid chi to RS485 interface, RS485 interface has the high advantage of data transmission efficiency, the maximum data transfer rate can reach 10Mpbs, and its anti-common mode interference ability is strong, and namely noise immunity is good, communication distance is large, can meet the demand of long-distance transmissions.Single-chip microcomputer is the low-power chip of 5.3V.Concrete, described interface conversion circuit is electric level interface change-over circuit, for the data-interface of described appearance grid chi 10 and the level conversion of described RS485 interface and to the data shaping gathered.As shown in Fig. 3 to Fig. 5 and Fig. 8, it can realize the level conversion of 1.5V to 5.3V, hold the input port 0 (MCLK IN) in the data access interface conversion circuit that grid chis 10 receives and 1 (MDAT IN), output port 2 (MDAT), output port 3 (MCLK) are connected with the pin 17 of single-chip microcomputer and pin 20 respectively; As shown in Figure 5, Figure 8, the receiving port 1 (RXD) in RS485 interface, transmit port 4 (TXD) are connected with the pin 13 of single-chip microcomputer and pin 14 respectively,
Preferably, described converter also comprises the data-carrier store that is connected with described microprocessor respectively and the digital encoder for the data gathered being converted to electric signal, as shown in Figures 5 to 7, its data terminal (SDA), clock signal input terminal (SCL) are connected with the pin 5 on single-chip microcomputer, pin 6 respectively.
Preferably, as shown in Figure 1 and Figure 2, described converter is connected with a general supply module, described RS485 interface is connected with a universal data collection processing module, described digital sampling and processing is used for the digital signal after converter conversion described in acquisition and processing, and general supply module adopts direct current supply.
Further, described converter is connected with the electrostatic protection module and lightning protection module that are connected with described RS485 interface, and as shown in Figure 9, it is provided with 2 protective tubes F42, F43, and 3 protection tube G41, G42, G43 for overvoltage protection.
Specifically, described appearance grid chi 10 comprises a crossbeam 110, is fixed on the first measuring staff 111 bottom described crossbeam 110, is movably arranged on the second measuring staff 112 on described crossbeam 110, described first measuring staff 111, second measuring staff 112 is for being fixed on measured point, and described crossbeam 110 is provided with scale.Further, described crossbeam 110 is provided with the sensor of the distance for detecting described first measuring staff 111 and the second measuring staff 112, and is connected with described sensor and is fixed on the digital display screen 113 at described second measuring staff 112 top.As shown in Figure 10, rock wall 20 there is a crack 21, the first measuring staff 111, second measuring staff 112 holding grid chi 10 is separately fixed on the first measuring point 210, second measuring point 220 of both sides, crack 21, the original width in crack 21 is presented on digital display screen 113, in the process that crack 21 is out of shape, its fracture width can be read at any time, simple, convenient.
In sum, the appearance grid chi slit gauge that the utility model provides, it is connected with at appearance grid chi data-interface converter data-interface being converted to universal sensor interface, realize level conversion, make to hold grid chi to be communicated to connect with extraneous by RS485 interface, user can change different sensors easily, reduce the production cost of production firm, and it has the advantage that data transmission efficiency is high, noise immunity good, communication distance is large to adopt the appearance grid chi slit gauge of this structure, can meet the demand of long-distance transmissions.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. hold a grid chi slit gauge, it is characterized in that, it comprises an appearance grid chi, the converter for the data-interface holding grid chi being converted to universal sensor interface be connected with the data-interface of described appearance grid chi;
Described converter comprises: microprocessor, the interface conversion circuit be connected with described appearance grid chi data-interface and described microprocessor respectively, the RS485 interface be connected with described microprocessor.
2. appearance grid chi slit gauge according to claim 1, it is characterized in that, described interface conversion circuit is electric level interface change-over circuit, for the data-interface of described appearance grid chi and the level conversion of described RS485 interface.
3. appearance grid chi slit gauge according to claim 1, is characterized in that, described converter also comprises the data-carrier store and digital encoder that are connected with described microprocessor respectively.
4. appearance grid chi slit gauge according to claim 1, it is characterized in that, described converter is connected with a general supply module, described RS485 interface is connected with a universal data collection processing module, and described digital sampling and processing is used for the digital signal after converter conversion described in acquisition and processing.
5. appearance grid chi slit gauge according to claim 1, is characterized in that, described converter is connected with the electrostatic protection module and lightning protection module that are connected with described RS485 interface.
6. appearance grid chi slit gauge according to claim 1, it is characterized in that, described appearance grid chi comprises crossbeam, be fixed on the first measuring staff bottom described crossbeam, be movably arranged on the second measuring staff on described crossbeam, described first measuring staff, the second measuring staff are for being fixed on the measured point of both sides, crack, and described crossbeam is provided with scale.
7. appearance grid chi slit gauge according to claim 6, it is characterized in that, described crossbeam is provided with the sensor of the distance for detecting described first measuring staff and the second measuring staff, and is connected with described sensor and is fixed on the digital display screen at described second measuring staff top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196388.7U CN204479014U (en) | 2015-04-02 | 2015-04-02 | Hold grid chi slit gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196388.7U CN204479014U (en) | 2015-04-02 | 2015-04-02 | Hold grid chi slit gauge |
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| Publication Number | Publication Date |
|---|---|
| CN204479014U true CN204479014U (en) | 2015-07-15 |
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| CN201520196388.7U Active CN204479014U (en) | 2015-04-02 | 2015-04-02 | Hold grid chi slit gauge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767360A (en) * | 2016-12-31 | 2017-05-31 | 长江三峡勘测研究院有限公司（武汉） | A kind of digital vernier formula crack gauge and its application method for Fracture Deformation monitoring |
| CN106813640A (en) * | 2017-03-22 | 2017-06-09 | 中国地质调查局水文地质环境地质调查中心 | A kind of digital display crack detecting device and its detection method |
| CN107388954A (en) * | 2016-05-16 | 2017-11-24 | 李汉忠 | High reliability capacitive grating scale slit gauge |
-
2015
- 2015-04-02 CN CN201520196388.7U patent/CN204479014U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388954A (en) * | 2016-05-16 | 2017-11-24 | 李汉忠 | High reliability capacitive grating scale slit gauge |
| CN106767360A (en) * | 2016-12-31 | 2017-05-31 | 长江三峡勘测研究院有限公司（武汉） | A kind of digital vernier formula crack gauge and its application method for Fracture Deformation monitoring |
| CN106813640A (en) * | 2017-03-22 | 2017-06-09 | 中国地质调查局水文地质环境地质调查中心 | A kind of digital display crack detecting device and its detection method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |