CN202372281U

CN202372281U - Stress monitoring system used for steel structure

Info

Publication number: CN202372281U
Application number: CN2011205532035U
Authority: CN
Inventors: 苟乃琛; 谢进儒
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2012-08-08
Anticipated expiration: 2021-12-27

Abstract

The utility model relates to a stress monitoring system, and particularly to a stress monitoring system used for a huge steel structure. The stress monitoring system comprises a computer, a monitor, a decoder, a wireless receiver, an alarm and a displacement sensor, wherein the displacement sensor and the wireless receiver are matched, the wireless receiver is connected with the decoder, and the decoder is connected with the computer. The displacement sensor comprise a capacitive sensing unit containing the decoder, a radio frequency modulation transmitter, a first extension arm and a second extension arm, wherein the a testing base point A of the first extension arm and a testing base point B of the second extension arm are fixed on an object to be tested, a free end of the first extension arm and a free end of the second extension arm are arranged in an opposite direction, a certain distance is set between the free end of the first extension arm and the free end of the second extension arm, a testing end of the capacitive sensing unit is arranged in the gap between the first extension arm and the second extension arm, and the capacitive sensing unit is connected with the radio frequency modulation transmitter. The stress detection system used for the steel structure can monitor the stress condition of the steel structure in real time, and have a certain beneficial effect.

Description

A kind of stress monitoring system that is used for steel construction

Technical field

The utility model relates to a kind of stress monitoring system, especially a kind of stress monitoring system that is applicable to large-scale steel structure.

Background technology

Because of large-scale steel construction stressing conditions complicacy such as boats and ships, bridge; Particularly the stressing conditions of its crucial force part is if can not obtain for the monitoring personnel in real time; May cause some great losses, be necessary so design a kind of monitoring system that can monitor steel construction stress situation in real time.

The utility model content

The utility model is intended to address the above problem, and a kind of stress monitoring system that is used for steel construction is provided, and it can monitor the stressing conditions of steel construction in real time, and its technical scheme that adopts is following:

A kind of stress monitoring system that is used for steel construction; Comprise computing machine, display, demoder, wireless receiver, alarm and displacement transducer; Said displacement transducer and wireless receiver match; Said wireless receiver is connected with demoder, and said demoder is connected with computing machine, and said computing machine is connected with alarm with display; The order of signal transmission is displacement transducer, wireless receiver, demoder, computing machine, and the signal message after will being handled by computing machine at last passes to display and alarm.

On the technique scheme basis; Said displacement transducer mainly is made up of the capacitance sensing unit that contains scrambler, rf modulations transmitter, first adjutage and second adjutage; The test basic point B of the test basic point A of said first adjutage and second adjutage preset distance at interval is individually fixed on the measured object; The free end of said first adjutage and second adjutage is installed and spacing one setpoint distance in opposite directions; The gap that the test lead of said capacitance sensing unit places the free end of first adjutage and second adjutage to form, said capacitance sensing unit is connected with the rf modulations transmitter.

On the technique scheme basis, said test basic point A and test basic point B distribute along the force direction that receives of measured object.

On the technique scheme basis, said first adjutage adopts material with the material of measured object identical thermal expansivity to be arranged with second adjutage.

The utlity model has following advantage: can measure and identify the intensity of the crucial force part of steel constructions such as boats and ships, bridge, prevent the generation of some major accidents; The real-time force-bearing situation in monitoring boats and ships, the bridge prestowage and reporting to the police when reaching capacity is measured when high sea navigates by water the force-bearing situation of boats and ships and is convenient to the driver and selects safe course.

Description of drawings

Fig. 1: the structural representation of the utility model;

Symbol description:

1. displacement transducer, 2. computing machine, 3. display, 4. demoder, 5. wireless receiver; 6. alarm, 10. capacitance sensing unit, 11. rf modulations transmitters, 12. first adjutages; 13. second adjutage, 14. test basic point A, 15. test basic point B, 16. measured objects.

Embodiment

Below in conjunction with accompanying drawing and instance the utility model is described further:

As shown in Figure 1; A kind of stress monitoring system that is used for steel construction of present embodiment; Comprise computing machine 2, display 3, demoder 4, wireless receiver 5, alarm 6 and displacement transducer 1, said displacement transducer 1 matches with wireless receiver 5, and said wireless receiver 5 is connected with demoder 4; Said demoder 4 is connected with computing machine 2, and said computing machine 2 is connected with alarm 6 with display 3.

Preferably; Said displacement transducer 1 mainly is made up of the capacitance sensing unit 10 that contains scrambler, rf modulations transmitter 11, first adjutage 12 and second adjutage 13; The test basic point B15 of the test basic point A14 of said first adjutage 12 and second adjutage 13 preset distance at interval is individually fixed on the measured object 16; The free end of said first adjutage 12 and second adjutage 13 is installed and spacing one setpoint distance in opposite directions; The gap that the test lead of said capacitance sensing unit 10 places the free end of first adjutage 12 and second adjutage 13 to form, said capacitance sensing unit 10 is connected with rf modulations transmitter 11.Gap between the free end of the free end of said first adjutage 12 and second adjutage 13 is between several millimeters to tens millimeters; Do the time spent as external force; Measured object 16 is along receiving force direction generation deformation; So the distance between test basic point A14 and the test basic point B15 also changes, thereby the spacing between the free end of the free end of first adjutage 12 and second adjutage 13 also changes thereupon thereupon, changes in spacing causes the variation of gap capacitance capacity; The variation of this electric capacity is transformed into through capacitance sensing unit 10 and the relevant digital signal of measured object 16 length variations, becomes emission of radio frequency signals through rf modulations transmitter 11 again and goes out.Wireless receiver 5 receives the radiofrequency signal from displacement transducer 1, and it is reduced to the length variations signal of measured object 16, supplies computing machine 2 to carry out analyzing and processing and record, and shows through display 3, when noting abnormalities, sends warning through alarm 6.

Further, said test basic point A14 distributes along the force direction that receives of measured object 16 with test basic point B15.Distance between test basic point A14 and the test basic point B15 is between several centimetres to several centimetres.

Further again, said first adjutage 12 adopts material with the material of measured object 16 identical thermal expansivity to be arranged with second adjutage 13.So can avoid the caused measuring error of the temperature difference.

With way of example the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment, all any changes done based on the utility model or modification all belong to the utility model and require the scope protected.

Claims

1. stress monitoring system that is used for steel construction; It is characterized in that: comprise computing machine (2), display (3), demoder (4), wireless receiver (5), alarm (6) and displacement transducer (1); Said displacement transducer (1) matches with wireless receiver (5); Said wireless receiver (5) is connected with demoder (4), and said demoder (4) is connected with computing machine (2), and said computing machine (2) is connected with alarm (6) with display (3).

2. a kind of stress monitoring system that is used for steel construction according to claim 1; It is characterized in that: said displacement transducer (1) mainly is made up of the capacitance sensing unit (10) that contains scrambler, rf modulations transmitter (11), first adjutage (12) and second adjutage (13); The test basic point A (14) of said first adjutage (12) and the test basic point B (15) of second adjutage (13) preset distance at interval are individually fixed on the measured object (16); The free end of said first adjutage (12) and second adjutage (13) is installed and spacing one setpoint distance in opposite directions; The gap that the test lead of said capacitance sensing unit (10) places the free end of first adjutage (12) and second adjutage (13) to form, said capacitance sensing unit (10) is connected with rf modulations transmitter (11).

3. a kind of stress monitoring system that is used for steel construction according to claim 2 is characterized in that: said test basic point A (14) and test basic point B (15) distribute along the force direction that receives of measured object (16).

4. a kind of stress monitoring system that is used for steel construction according to claim 2 is characterized in that: said first adjutage (12) adopts material with the material of measured object (16) identical thermal expansivity to be arranged with second adjutage (13).