A kind of construction of structures inclination measurement device and method based on photo resistanceTechnical field
The invention belongs to Soil Parameters measuring device field, in particular to a kind of construction of structures deviational survey based on photo resistanceDevice and method.
Background technique
China is still within the rapid economic development stage, annual a large amount of building construction, underground engineering and municipal works etc.Project kickoff construction.During newly-built construction of structures, it is more likely that have an impact, may cause week to the building on peripheryThe inclination in side house.In addition, differential settlement, the reasons such as WATER LEVEL CHANGES can all cause the inclination in house.This is just needed pairThe inclination in house is monitored.
Summary of the invention
Goal of the invention: to solve the technical problems existing in the prior art, the present invention provides a kind of based on photo resistanceConstruction of structures inclination measurement device and method are monitored with the inclination to house.
Technical solution: to realize the above-mentioned technical purpose, the invention proposes a kind of, and the construction of structures based on photo resistance is surveyedRamp including a closed shell, is set to the intracorporal counterweight of the shell, the light source luminescent being set in counterweight dressSet, be set to the photo resistance test device and power supply of the housing bottom, wherein the bottom end of the counterweight is arc-shaped, circleArc is with counterweight rotation point for the center of circle；The light sources include light source activation switch and light source, and the light source is at shell bottomThe projection in portion is in time-limited arc section；The photo resistance test device include resistance test port, photo resistance pedestal andThe photo resistance being set on the photo resistance pedestal, the photo resistance are used to incude the light source of light sources projectionEnergy, the photo resistance pedestal be it is arc-shaped and parallel with the circular arc of counterweight bottom end.Whole device is powered by power supply.
Wherein, counterweight hangs on the inside of the shell by sunpender, while passing through the verticality of bearing control counterweight.OnlyKeep sunpender perpendicular.
The photo resistance covers the half region of the photo resistance pedestal, by move left and right photosensitive region become larger andBecome smaller, can judge the angle of moving direction enough.
Preferably, water or oily matter are full of in the shell, to reduce influence of the ambient vibration to plummet body.
The light source is laser or LED light source.
Preferably, the counterweight is plummet body.
The photo resistance and the photo resistance pedestal are cementing, the photo resistance pedestal and the fixed connection of device under testKnot.
The invention also provides a kind of tilt measurements based on above-mentioned inclination measurement device, include the following steps:
(1) inclination measurement device described in claim 1 is fixed in the opposite of object to be tested；
(2) after device is stablized, light source activation switch is opened, resistance test port test photo resistance value R is passed through0；
(3) when to building inclination and distortion monitoring time point, it is again turned on light source activation switch, passes through resistance test portTest photosensitive resistance value Rt；
(4) photo resistance value R is comparedtWith initial value photo resistance value R0Variable quantity, in conjunction with factory calibration coefficient α, converseBuilding inclination angle, θ, θ=α × | Rt-R0|。
The utility model has the advantages that the device of the invention structure is simple, carrying out detection using it can be to incline in construction of structures work progressAngular deformation real-time monitoring, it can also be used to the monitoring in construction of structures work progress, to surrounding environment influence.Test side of the inventionMethod is easy, accurate, cheap, can obtain data in real time, meet the demand of modern construction procedural information.
Detailed description of the invention
Fig. 1 is the overall appearance schematic diagram of inclination measurement device of the present invention；
Fig. 2 is the sectional view according to the direction 1-1 in Fig. 1；
Fig. 3 is the sectional view according to the direction 2-2 in Fig. 1；
Fig. 4 is the arrangement schematic diagram of photo resistance；
Fig. 5 is the energizing circuit schematic diagram of light source；
Fig. 6 is that circuit is tested in photo resistance, wherein R1 is configuration resistance, and R2 is photo resistance.
Specific embodiment
The technical solution that the invention will now be described in detail with reference to the accompanying drawings.
As shown in Figure 1, the construction of structures inclination measurement device of the invention based on photo resistance is a closed rectangular housing(as shown in Figure 1), shell is interior to be arranged counterweight vertical body, and setting laser or LED light emission device in vertical body, plummet bottom end is circular arcShape, circular arc is with plummet rotation point for the center of circle (such as Fig. 2).Light emitting device is in time-limited " arc section ", cassette bottom in the projection of shell bottomPhoto resistance is set, and photo resistance pedestal is arc-shaped and parallel with plummet bottom end circular arc (Fig. 3), photo resistance pedestal half areaPhoto resistance (such as Fig. 4) is arranged in domain, for incuding the energy (Fig. 5 and Fig. 6) of projection source.Water or oily matter are full of in box,Reduce influence of the ambient vibration to vertical body.After construction of structures run-off the straight deformation, shell is with building run-off the straight, plummetBody holding position is constant, excitation light source, tests photosensitive resistance value, by the way that test resistance value is compared with initial value, Ji KeliIt is converted with default calculation procedure and obtains the inclination and distortion amount that construction of structures occurs, since light is arranged in photo resistance pedestal half regionQuick resistance, the trend for becoming larger or becoming smaller according to photo resistance value can determine whether inclined direction.
Specific detecting step is as follows:
(1) inclination measurement device is fixed in the opposite of object to be tested；
(2) after device is stablized, light source activation switch is opened, resistance test port test photo resistance value R is passed through0；
(3) when to building inclination and distortion monitoring time point, it is again turned on light source activation switch, passes through resistance test portTest photosensitive resistance value Rt；
(4) photo resistance value R is comparedtWith initial value photo resistance value R0Variable quantity, in conjunction with factory calibration coefficient α, converseBuilding inclination angle, θ, i.e. θ=α × | Rt-R0|。