CN201094002Y - Digital display angle measuring instrument - Google Patents

Abstract

The utility model provides a digital display angle measuring instrument, which belongs to the angular measurement field. The instrument comprises a fixing device, an angle measuring device and a damping device and a rotation device which can conveniently adjust the angle measuring device to be downward in a perpendicular way is arranged between the fixing device and the angle measuring device; the stir grid of a disk displacement measurement sensor is fixed at the axle center of a rotating shaft, a pendulum mass is fixed on the rotating shaft through a precision bearing, so as to be linked with the rotating shaft, magnets are evenly distributed on the circumferences of a front cover and a rear cover which are parallel with the pendulum mass, and are adhered on a bracket made of hard plastic, the magnets on the front cover and the rear cover are arranged in a symmetric plane way, the symmetrical magnets have opposite polarities, the adjacent magnets of the front cover have opposite polarities, and the adjacent magnets of the rear cover have opposite polarities. The digital display angle measuring instrument has the following advantages that: firstly, the sensitivity is high, the linearity is good, and the anti-interference ability is strong; secondly, the damping is good, and the stop of the pendulum mass is fast; thirdly, the measuring range is wide, and can reach 360 DEG; the utility model can be widely applicable to the angular measurement, and can fast and precisely read the deflection angle in particular when the changing is carried out with big angle and large acceleration.

Description

The digital display angel measuring instrument

Technical field

This novel a kind of digital display measuring apparatus device, a kind of specifically digital display angel measuring instrument of relating to.

Background technology

At present mostly the rudder face measuring instrument that uses is weight (pendulum) pointer-type, is not to be with damping unit, and the pendulum overlong time of stopping must the people just can make weight stop very soon for applying resistance, and adopt pointer reading, and measuring error is bigger.For this reason, China Patent No. is that CN200520035400.2 discloses the portable digital display level inclination of the circle appearance grid instrument that a kind of employing comprises angle measurement unit and magnetic damping device, be designed on the circumference of the bonnet parallel, evenly be laid with the aperture that mates with flat thin magnet with the pendulum plane of oscillation, flat thin magnet embeds this and covers in the aperture that matches, adjacent flat thin magnet magnetic pole is opposite, the one side of flat thin magnet and magnetic guiding loop are fitted, another side forms the air magnetic circuit each other, with the face of pendulum and flat thin magnet opposite face support plate on also post a magnetic guiding loop, corresponding with the magnetic guiding loop that posts on the bonnet, make pendulum place the air magnetic gap all the time, pendulum in swing because of cutting magnetic line, portion produces vortex flow within it, forms the resistance that stops swing.Disclosed digital display inclinator time of stopping under the situation that slowly surface level changes is fast, but its structure is that two parallel surface magnetic guiding loops are corresponding, the magnetic pole that is correspondence on the opposite face is identical, can't constitute the stronger air magnetic circuit of magnetic force, in changing the very fast measurement of angle of acceleration, the time of stopping is just very slow, and does not have stationary installation, can't measure when deflection plane generation wide-angle deflection.

The utility model content

The technical matters that solves

In order to address the above problem, this new design a kind of both simple in structure, good linearity, precision height, measure rapidly, high efficiency, can can when the conversion of wide-angle high acceleration, fast, accurately read the digital display angel measuring instrument of deflection angle for pendulum provides effective damping again.

Technical scheme

The utility model comprises round capacitor grid transducer, rotating shaft, the angle measurement unit that pendulum is formed and by the magnetic cylinder, the damping unit that magnet forms, its feature also comprises one group of stationary installation, a rotary fixing device is arranged between stationary installation and the angle measurement unit, rotary fixing device comprises adjusts bolt and vertical rotation axis, but rotate to adjust bolt vertically downward and make angle measurement unit fixing tight by vertical rotation axis conveniently adjusting angle measurement mechanism, such design makes between stationary installation and the angle measurement unit can not produce torsional forces, sensing operating accuracy height, simple installation; The moving grid of circle capacitor grid transducer is fixed on the axle center of rotating shaft, pendulum is fixed in the rotating shaft and the rotating shaft interlock by precision bearing, on the circumference of the front and rear covers parallel, evenly be laid with magnet with the pendulum plane of oscillation, magnet is bonded on the support that non-magnet material does, magnet on the front and rear covers becomes the plane of symmetry to arrange, the magnet polarity of symmetry is opposite, the magnet magnetic pole that protecgulum is adjacent is opposite, the magnet magnetic pole that bonnet is adjacent is also opposite, in the magnetic cylinder, form the air magnetic loop between the magnet of front and rear covers each other, also form the air magnetic loop between the magnet adjacent one another are on protecgulum and the bonnet, pendulum places the air magnetic gap all the time like this, cutting magnetic line increases magnetic damping more fully.

In the process of measuring, when the angle of measuring changes, drive stationary installation and move together, pendulum gravitate generation swing drives circle capacitor grid transducer moving grid and rotates generation pivot angle digital signal, handles drawing pivot angle numerical value through chip.Meanwhile, pendulum is because of cutting magnetic line, and portion produces vortex flow within it, forms the resistance that stops swing; This vortex flow is directly proportional with the speed of swing, and the swing resistance reduces with the minimizing of slew rate, thereby is not subjected to the influence of magnetic force during the remaining static of pendulum, but because of existing drag energy to settle out very soon when the swing, makes things convenient for quick reading.This rudder face digital display measuring apparatus movement adopts the circle capacitor grid transducer, can give full play to this sensor low-power consumption, highly sensitive, be output as characteristics such as digital signal, simultaneously magnet in the magnetic cylinder on two walls polarity evenly distributed on the contrary, make pendulum in 360 ° scope, be arranged in magnetic circuit air-gap cutting magnetic line all the time, can satisfy 360 ° of measurement requirement.

Beneficial effect

Because the design has adopted stationary installation, makes the angular range of measurement can reach 360 °; Adopt the circle capacitor grid transducer to make highly sensitive, the good linearity of measurement, antijamming capability strong; Good by putting of magnet being designed the damping that makes measuring instrument, pendulum is static fast; Can the optional position zero clearing, beginning angle measurement degree; Compact conformation, install easy to adjust; The measuring accuracy height, work efficiency obviously improves, and can be widely used in carrying out the occasion of various Plane Angle variations and measurement of dip angle.

Description of drawings

Fig. 1 is an inner structure front view of the present utility model;

Fig. 2 is the structure cut-open view of the utility model magnetic cylinder, sensor and display part;

1. straps, 2. hold-down bolts 3. are adjusted bolt 4. vertical rotation axis 5. magnetic cylinders 6. magnet holder 7. magnet 8. pendulums 9. rotating shafts 10. swivel bearings 11. circle capacitor grid transducers among the figure

Embodiment

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

In the utility model: form stationary installation by strap (1), hold-down bolt (2), be mainly used in this measurement mechanism is fixed on the face of the angle that can deflect; Rotate adjustment bolt (3) and can make weight (8) vertically downward, reduce the friction force that produces because of moment of torsion, improve measuring accuracy by vertical rotation axis (4) formation rotary fixing device; Magnetic cylinder (5) is made up of front and rear covers, magnet holder (6) is a duroplasts, magnet (7) is cylindrical magnet magnet, magnet (7) is attached on the magnet holder (6) according to certain distance, magnet holder (6) is fixed on the front and rear covers of magnetic cylinder (5), magnet on the front and rear covers (7) becomes symmetric offset spread, the magnet polarity of symmetry is opposite, magnet magnetic pole adjacent on the protecgulum is opposite, magnet magnetic pole adjacent on the bonnet is also opposite, in magnetic cylinder (5), form the air magnetic circuit each other between the magnet (7) of front and rear covers, also form the air magnetic circuit between each face magnet (7) adjacent one another are on the front and rear covers, can increase magnetic field intensity greatly like this.The moving grid of circle capacitor grid transducer (11) is fixed on the axle center of rotating shaft (9), the fan-shaped pendulum of being made by non-magnetic conductive metal material (8) is fixed on last and rotating shaft (9) interlock of rotating shaft (9) by swivel bearing (10), when the plane deflected, pendulum (8) rotated by the moving grid that swivel bearing (10) drives fixing circle capacitor grid transducer (11).

The size of the stationary installation of this digital display angel measuring instrument and fixed form can be adjusted according to the plane or the object of the angle that deflects, to reach fixing purpose; Simultaneously can also be as required magnetic force, the shape of magnet be adjusted to reach the purpose that the design fast, accurately reads deflection angle when the conversion of wide-angle high acceleration.

Claims (1)

1. digital display angel measuring instrument, comprise angle measurement unit that round capacitor grid transducer (11), rotating shaft (9), pendulum (8) are formed and the damping unit that forms by magnetic cylinder (5), magnet (7), it is characterized in that: also comprise one group of stationary installation, stationary installation is made up of strap (1) and hold-down bolt (2); A rotary fixing device is arranged between stationary installation and the angle measurement unit, comprise and adjust bolt (3) and vertical rotation axis (4); The moving grid of circle capacitor grid transducer (11) is fixed on the axle center of rotating shaft, and pendulum (8) is fixed on rotating shaft (9) by swivel bearing (10) and goes up and rotating shaft (9) interlock; On the front and rear covers circumference of the magnetic cylinder (5) parallel, evenly be laid with magnet (7) with pendulum (8) plane of oscillation, magnet (7) is bonded on the support (6) that non-magnet material does, magnet holder (6) is fixed on the front and rear covers of magnetic cylinder (5), magnet on the magnet holder (6) becomes the plane of symmetry to arrange, the magnet polarity of symmetry is opposite, the magnet magnetic pole that protecgulum is adjacent is opposite, the magnet magnetic pole that bonnet is adjacent is also opposite, in the magnetic cylinder, form the air magnetic loop between the magnet of front and rear covers each other, also form the air magnetic loop between the magnet adjacent one another are on protecgulum and the bonnet.

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