SU717530A1 - Inclination angle sensor - Google Patents

Description

I

The invention relates to measuring equipment and is intended to measure inclination angles of up to 3-5 or more in the construction of buildings, roads and other objects.

There are known photoelectric tilt sensors that contain a swivel mapper and two photodetectors included in bridge circuit 1 and 2

The sensors are equipped with a tracking system, since it is a direct readout of the angle of inclination from the difference of the photo. The currents of the two receivers are very inaccurate due to the inconstancy of the parameters of the photodetectors and their small linear dimensions. The follow system greatly complicates the device and reduces its speed.

. Photoelectric reading devices for measuring angles of inclination are known, which include an attendant angle sensor with a slit, a scanning device with a raster scale and photoelectric sensors that connect

vent through the control key with a pulse counter. 3}.

Known phototransistors that are sensitive to the position of the light beam. However, they have a small displacement interval (0.25-0.8 mm) and an analogue information output, which makes it difficult to use them in a tilt sensor.

Also known is a photoelectronic device - a dissector for measuring displacement 4j.

However, like any vacuum device, it requires a high voltage, which for a portable device is not entirely

conveniently. . .

The closest in technical essence to the proposed is a tilt angle sensor containing a master with an illuminator mounted directly on the master curtain, a scanstor, a sawtooth voltage generator, a pulse amplifier, a transmitter, and an indicator device sj.

::::: i :: ;;. ::::,. ::; ::: g ::::: - ::: - -; ti

However, in the device are elements of OLYA fsugopry (& nd116 ndVInEL) semiconductor scans, HMiBiouiiHe resolution up to рur lines per centimeter and the photosensitive layer 25 mm.

 The purpose of the invention is to increase) the slope.

f.fiirff-.

This is achieved by the fact that the KOTOptotX Suspension) is inserted into the proposed sensor in the burned-in headboard, located below 1) the nd 11t and ate-5b6ro tang for the calculated length of the latter. The planes of the oscillating waves of both timbers coincide, and on the axis of the suspension of the second tandem Bimmetry ekreppen scanrostor so that its photosensitive layer is parallel to the wiping of the first W ramper in its immediate vicinity. With this design of the sensor, the luminous mark will be the yerpendy1kul pH5a of the longitudinal axis of the scanner;

 tilt dacha,. ,,,. .a T --T- .-. .-.

FIG. 1 depicts the Structural. tilt sensor circuit; On page 2 of 2, By removing the sensor operation in FIG. 3 - The same, with Y4Sh10ne.

IDTopKa 1 yervma ma nNiK% with presets for L. deviation fixed on the axis 2 of the pendulum suspension. On the shutter is fixed the illuminator 3, which is connected to the circuit with the psvostok) non-motorized leads. On the curtain there is a slit diaphragm located vertically. The distance from the axis 2 of the suspension lio of the center of the diaphragm of the YGT is the even length of the tiller L. The axis of the weight of the second tandem 5 is the torsional axis of the suspension 2 of the first tandem below the axis above. The distance between the axes is equal to the calculated dyeno ма. At the end of axis 4, in the immediate vicinity of the shutter 1, a scanstor 6 is attached to the nebular slot, the photosensitive layer, which faces the shutter 1, so that the light from Taits is verticly “hey IriiaHba npeie kp ;; eTc on the photosensitive layer. The readout circuit consists of a generator 7 sawtooth voltage, pulse amplifiers, trigger 9, and indicator device 10. The top of the scannister is on the electronic circuit through non-current-to-wire connectors. J

FIG. 2 shows a diagram of the angle sensor installed on the platform “e. Scanner ukrbilёYna boards.

04

therefore, the angle between the light mark on the photosensitive layer of the scanstor and its longitudinal axis is 90 -vC. In FIG. 3 you can see that when

any angle of inclination the luminous mark is perpendicular to the longitudinal axis of the scanstor, and the deviation of the luminous mark is

from the center of the scanistor is equal.

E L sin L; J

where is the deviation of the light mark,

L is the calculated length of the first magnet .g

The indications of the indicator device are proportional to the deviation of the light.

stamps. Therefore, the readings of the device are proportional to the sine of the angle of inclination, i.e. The tilt angle sensor is actually a sine angle sensor. For small tilt angles (up to

3-5) sinoC, 1. and tg-i differ very little from the fugue. Therefore, for rail track profiling. chick can be used directly. For Hbix car profilographs with large slopes, it is necessary to have sin L and soy / to obtain a road profile.

With a length of a photosensitive layer of 25 mm and resolution

Scanner 100 lines. The angle measurement error is 0.4%.

F o rm in ri and invention

Inclination angle sensor containing

tandem with an illuminator mounted directly on the tiller curtain, a scanistor, a sawtooth generator, for example, a pulse amplifier, a trigger and an indicator device, so that with the aim of measuring the accuracy of The second tandem is inserted into it, the suspension axis is located below the axis of suspension of the first tandem by the estimated length of the Last, and the plane ofeohx oscillations of the emitters coincide, and on the axis of suspension of the second matiCa scanner is symmetrically fixed so that its photosensitive layer

parallel to the curtain of the first tAT is located in the immediate vicinity of it.

Sources of information taken into account in the examination

1. The USSR author's certificate: Sl 352127, cl. G 01 C 9/12, 1971.

2.Patent of France NO 2047067, cl. GOl 9/12, 1972.

5717530. 6

3, Litorszhoo sv1shotolch :: tvo USSR “their measurements. M., Nedra, 1976,

 No. 1.13377, cl. G 01 C 7/04, 19727.c. 69

4. Zatsripny A.V., Automatization. M., 1969. p. 169-179 high-precision engineering geodesic- 5 (prototype),

5. Katys G.P., Automatic ska

Claims (1)

Formulas of the invention 'X An inclination angle sensor containing a 35 pendulum with an illuminator mounted directly on the pendulum curtain, a Scanistor, a sawtooth generator, a pulse amplifier, a trigger indicator device, starting at ^40, kicking in that, in order to increase the measurement accuracy, a second a pendulum whose suspension axis is lower than the suspension axis of the first pendulum by the calculation of the ^45th length of the latter, and the oscillation planes of both pendulums give the same, and the scanner> is symmetrically mounted on the suspension axis of the second pendulum> so that its photo the sensitive layer ^{50 is} parallel to the curtain of the first pendulum and is located in close proximity to it.