SU1167416A1 - Device for determining irregularities of road and airfield pavements - Google Patents

Abstract

A DEVICE FOR DETERMINATION OF HELP UNITS OF ROAD AND AERODROMIC POINTING, contains a platform with traveling wheels, two rods of spring loaded relative to it with measuring wheels at one ends intended for the tracks, a track sensor, passed by the platform, and connected in series with the meter, and the track sensor connected in series with the track, connected in series, and connected in series with the track sensor. Computing and recording units, characterized in that, in order to simplify the design and extend the functionality, the linear displacement meter is implemented in The stabilizers of the stabilizers, one of which has a linear displacement sensor, are hinged at the other ends of the rods, the counting element interacting with the linear displacement sensor and the rods are installed perpendicular to the working surface of the platform. u .. L T

Description

The invention relates to a measurement technique and can be used to determine the irregularities of road and airfield pavements.

The purpose of the invention is to simplify the construction and distribution of functional possibilities.

FIG. 1 shows a schematic of a device for determining road and airfield pavement irregularities; in fig. 2 is a schematic of a vitrified device with level platforms; in fig. 3 - the same, with one with a position arylizer on the rod; in fig. 4 - the same, with one stabilizer position on the platform.

The device contains a platform 1 with running wheels 2 and 3, mounted on platform 1 two spring-loaded rods A and 5 with measuring wheels 6 and 7, a linear-displacement meter for rods 4 and 5, made in the form of hinged stabilizers on them, for example, in the form of half-disks 8 and 9 with the bottom matchedness of the sensor fixed on the half-disk 8

10 linear movements, installed with the possibility of linear and angular movement using the holder

11 counter element 12 with counterweight 13, track sensor 14, kinematically associated with wheel 6, unit

15, connected to the sensor 14, connected to the sensor 10 linear displacements and the control unit 15, the computing unit, made in the form of the adder 16 and the memory circuit 17, and the registering unit 18 connected to the computing unit and the control unit 15.

The device works as follows.

In the initial state, platform 1 is installed at the beginning of the path of the monitored coating. Using the holder 11, the counting element 12 is moved to the position corresponding to the zero value of the sensor 10 linear displacements. The path sensor 14, the memory circuit 17 are set to zero and the block 18 is registered.

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When measuring move platform 1 along the track. When the platform 1 travels the distance equal to the distance between the axes of the measuring 5 wheels 6 and 7, the sensor 14 of the path through the control unit 15 inputs the signal from the output of the sensor 10 linear displacement, which is stored in the memory circuit 17 and recorded in the registering block 18. When the platform 1 is moved to a new position before the signal appears at the output of the sensor 14, the processing of the measuring information is 5 s in the same sequence with the algebraic addition of the result of the current th dimension filled with the result of the previous addition,

0 Rfl, - N. + 4H;

where is it ..

the height of the irregularity at the i-th coverage point relative to the initial reference point; LN; -, - height of roughness in

(1-1) point of coverage relative to initial

reference points; HI is the height of the irregularity of the i-th coverage point relative to (1-1) -th point. As a result, the recording unit 18 records the deviations of the irregularities relative to the starting point of reference during the movement of the platform. The minimum length of the irregularities is limited by the distance between the axles of the measuring wheels 6 and 7. To increase the minimum length of the irregularities, the half disks 8 and 9 with the rods 4 and 5 and with the wheels 6 and 7 can be mounted on separate platforms 1 and 19 connected with each other. In this case, the sensor 10 may be photoelectric, and the reference element - optical (Fig. 2).

A further simplification of the structure can be achieved by performing a linear displacement meter with one position stabilizer (Fig. 3 and 4).

Claims (1)

DEVICE FOR DETERMINING ROAD AND AERODROME COVERAGE IMPROPERTIES, containing a platform with running wheels, two rods spring-loaded relative to it with measuring wheels at one end, intended for rods, a track sensor traveled by the platform, and computational and a track sensor connected in series with recording blocks, characterized in that, in order to simplify the design and expand the functionality, the linear displacement meter is made in the form of a hinge fixed at the other ends of the rods of position stabilizers, on one of which a linear displacement sensor is fixed, on the other there is a readout element interacting with the sensitive element of the linear displacement sensor, linearly and angularly moving, and the rods are mounted 'perpendicular to the working surface of the platform. SU „, .1167416