CN2241322Y

CN2241322Y - Sensor for measuring angle of slope and angle of position of slope

Info

Publication number: CN2241322Y
Application number: CN 95245035
Authority: CN
Inventors: 杨云山
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-11
Filing date: 1995-09-11
Publication date: 1996-11-27
Anticipated expiration: 2005-09-11

Abstract

The utility model relates to a sensor for measuring the angle of slope and the angle of position of slope. A rotatable outer frame is fixed on a shell, two planes are arranged on the outer frame, an eccentric bearing block is arranged on one plane, and an accelerometer probe is vertically fixed on the other plane, the inner frame which can eccentrically rotate is fixed on the outer frame through a bearing, and a two-dimensional flux-gate probe is horizontally fixed on the inner frame. The utility model is suitable for the measurement in a prospecting drilling well, has the characteristics of high precision and good vibration resistance, and is applied to field transport.

Description

Measure the survey sensor of pitch angle and slant angle bearing

The utility model belongs to a kind of improvement that is used to measure the survey sensor structure of pitch angle and slant angle bearing, relates to the hole drift angle in the mine locating drilling well and the measurement of drift azimuth.

Dual mode is mainly adopted in the measurement of existing pitch angle and slant angle bearing: the one, utilize magnetic compass and heavily the pendulum mode indicate position angle and pitch angle, in this way owing to want the overcome friction square, so measuring accuracy is low, and complicated in mechanical structure, part is tiny, and vibration resistance is poor.Another kind is to adopt three-dimensional accelerometer and three-dimensional fluxgate to measure pitch angle and position angle, though measuring accuracy height in this way, resistance to shock is poor, and accelerometer easily is damaged, inconvenience transportation, and its cost height.

The purpose of this utility model is to provide a kind of overcome friction square that need not, and physical construction is simple, and measuring accuracy is higher, pitch angle that resistance to shock is good and measurement of azimuth sensor.

The technical solution of the utility model realizes as follows: it includes housing, inner frame, outside framework, the electric slip ring of fluxgate magnetic core and accelerometer probe and servo circuit plate and transmission signals, rotatable outside framework is by the two ends of bearing fixing at housing, its outside framework plane is parallel with shell wall side, one plane is provided with eccentric weight, vertical fixing has the accelerometer probe on another plane, the inner frame of eccentric rotation also can rotate with respect to outside framework on outside framework by bearing fixing, have on the inner frame and the vertical all the time plane of its center of gravity line, the axis normal of inner frame is in the outside framework axis simultaneously, horizontal fixed has two-dimentional fluxgate magnetic core on the inner frame plane, is separately fixed on two planes of outside framework with the two servo circuit plates that the accelerometer probe is connected with two-dimentional fluxgate magnetic core.

Inner frame is a hemisphere, and its sphere top is provided with the pellet shot from a slingshot of a band spring.

The utility model compared with prior art when guaranteeing measuring accuracy, has reduced cost, has improved resistance to shock, have simple in structure, easy to use, the characteristics that are suitable for transporting.

Fig. 1 is a structural representation sectional view of the present utility model.

Fig. 2 is the top plan view of Fig. 1.

Be a specific embodiment of the present utility model below, in conjunction with the accompanying drawings the utility model be further described:

Referring to Fig. 1, Fig. 2: the utility model is made up of the electric slip ring 7 of cylinder shell 1, outside framework 2, inner frame 3, accelerometer probe 4, two-dimentional fluxgate magnetic core 5 and servo circuit plate 6 and transmission signals.Rotatable outside framework 2 is fixed on the two ends of housing by bearing 8, two planes 15 are arranged on the outside framework 2,14 with housing axis 13 cylindraceous parallel (also just parallel) with the wall of housing, one plane 15 of outside framework 2 is provided with two eccentric weights 9, vertical fixing has accelerometer probe 4 on another plane 14, the hemisphere inner frame 3 of eccentric rotation is arranged in outside framework 2 hollow and by bearing 10 and is fixed on the outside framework 2, inner frame 3 can rotate with respect to outside framework 2, simultaneously the axis normal of inner frame 3 in the plane 16 of the axis of outside framework 2 and hemisphere inner frame 3 all the time perpendicular to hemispheroidal center of gravity line, horizontal fixed has two-dimentional fluxgate magnetic core 5 on the plane 16 of hemisphere inner frame 3, the parallel axes of one dimension fluxgate passage and inner frame 3 wherein, another dimension passage and this axis normal; The radius of hemisphere inner frame 3 is slightly less than the radius of housing 1, and its sphere top is provided with the pellet shot from a slingshot 11 of a band spring; On a plane 14 of housing 2, also be provided with the baffle plate 12 of a restriction inner frame 3 rotations; Be fixed on two planes 14,15 of outside framework 2 with the accelerometer probe 4 two servo circuit plates 6 that are connected with two-dimentional fluxgate magnetic core 5.The axle that the link tester of fluxgate magnetic core is crossed inner frame is led to outside framework, is connected with its servo circuit plate.

When using the utility model, place along the inclined shaft wall, because the action of gravity of eccentric weight 9, outside framework 2 pivot static after, its plane 15,14 can keep parallel with the axis 13 of cylinder shell 1 all the time, promptly parallel with the dip plane of inclined shaft, this moment, accelerometer 4 measured acceleration Gx were the component of acceleration of gravity on housing 1 axis: Gx=GmCos θ (Gm is an acceleration of gravity) can calculate tiltangle thus.When outside framework 2 rotates along axle, because the action of gravity of hemisphere inner frame 3 self, inner frame 3 also rotates also static, hemisphere plane 16 maintenance levels, the two-dimentional fluxgate magnetic core 5 of horizontal fixed on hemisphere inner frame 3 planes 16 also keeps level, two fluxgate component e of output this moment _x, e _yValue just can calculate slant angle bearing φ: e _x=e _XmCos φ, e _y=e _YmSin φ.Gx, e that accelerometer probe 4 and two-dimentional fluxgate magnetic core 5 are measured _x, e _ySignal is handled the back through the servo circuit plate and is caused electric slip ring 7 by circuit by the outside framework axle, is drawn by the perforate of shell body end with the electric slip ring interface line, to the floor treatment register system again.

Referring to Fig. 2, when the utility model uses or in transit, with its horizontal, the pellet shot from a slingshot 11 at hemisphere inner frame 3 tops is under the effect of spring, pellet shot from a slingshot 11 can contact chucking with housing 1, make inner frame 3 and outside framework 2 can not freely rotate and lock, thereby resistance to shock of the present utility model is good, is suitable for open-air transportation.When using the utility model that it is tilted to place, because the action of gravity of inner frame 3 self makes pellet shot from a slingshot 11 disengaging housings 1 automatically terminate locking.

Claims

1. survey sensor that is used to measure pitch angle and slant angle bearing, it comprises housing (1), outside framework (2), inner frame (3), fluxgate magnetic core (5), the electric slip ring (7) of accelerometer probe (4) and servo circuit plate (6) and transmission signals, it is characterized in that: rotatable outside framework (2) is fixed on housing (1) two ends by bearing (8), outside framework (2) is provided with two planes (15,14) parallel with housing (1) wall, one plane (15) is provided with eccentric weight (9), vertical fixing is gone up on another plane (14) accelerometer probe (4), the inner frame of eccentric rotation (3) is fixed on the outside framework (2) by axle (10), and can rotate with respect to outside framework (2), the plane (16) vertical all the time with its center of gravity line arranged on the inner frame (3), the axis normal of inner frame (3) is in the axis of outside framework (2) simultaneously, last horizontal fixed has two-dimentional fluxgate magnetic core (5) on the plane (16) of inner frame (3), and the two servo circuit plates (6) that are connected with two-dimentional fluxgate magnetic core (5) and accelerometer probe (4) are separately fixed at two planes (15 of housing (2), 14) on.

2. survey sensor according to claim 1, it is characterized in that: described housing (1) is for cylindric, described inner frame (3) is a hemisphere, and the radius of inner frame (3) is slightly less than the radius of housing (1), is provided with the pellet shot from a slingshot (11) of a band spring at the sphere top of hemisphere.

3. survey sensor according to claim 2 is characterized in that: a plane (14) of described outside framework (2) is provided with the block (12) of restriction inner frame (a 3) rotation.