SU1379628A1 - Laser ship course range fixing device - Google Patents

Abstract

The invention relates to the field of geodetic instrumentation. The purpose of the invention is to improve the measurement accuracy. After setting the initial countdown on the counter 5, the zone mark 2 is moved perpendicular to the resolution using an electric drive or manually. At the time of coincidence of the center of the zone mark 2 with the center of the laser beam, the signals from the photoreceivers 11 of the sensor 10 of the position of the center of the laser beam are compared, and a pulse arrives from the output of the comparator 13, then the signal is received by the photo receiver 8 of the reading device 3. issues a control pulse, according to which the contents of counter 5 is recorded in memory register 6 and displayed on indicator 7. 3 sg. cl

Description

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The invention relates to geodesic (m instrument making, in particular, to devices for measuring the heights of three-U1-o. Lines in polygonometric networks,

The aim of the invention is to improve the measurement accuracy.

Fig, 1 shows a functional diagram of the laser flap; in fig. 2 - shutter fastener design; in fig. 3 is a view A of FIG. 2,

The locking mechanism contains a laser emitter 1, zone mark 2, a joint; With a digital reading device. Including photovoltaic. The first 1 position, the counter 5 HMnyjiiiCOB, memory register 6, indicator 7, the first photodetector 8 and usi; 1ite; B-shaper 9, sensor 10 position of the center of the laser beam, consisting of two photodetectors 11, amplification: teleG formers 12, comparator 13, modulator 14 and radiator 15,

The laser emitter 1 consists of a lasorg-16 with a collimating optics 17 and a modulator 18 mounted on a geodesic reference sign 19 at ps the power of the centering pad 20.

Zone mark 2 is mounted on a movable carriage 21 moving in guides 22 mounted on an intermediate geodesic sign 23 by centering insert 24. Carriage 21 can be moved either manually or by means of electric drive 25. On bar carriage 21, a bar scale 26 is set and on direction 22, there is a photoelectric reading sensor 4. On the reading sensor 4 there is a photo detector 8, oriented along the alignment towards the sensor 10, the position of the center of the laser beam.

The sensor 10 for positioning the center of the laser beam contains a separation prism 27, two photodetectors 11, an electronic unit 28 and an emitter 15 oriented in the direction of the laser emitter 1.

The sensor 10 is mounted on the second reference sign 29 using the centering liner 30.

The fixer works as follows.

The laser emitter 1 is mounted on the reference sign 19 and is oriented according to the sensor 10

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the center of the laser beam mounted on the second reference sign 29. The zone mark 2 with the photoelectric reading device 3 is installed on the intermediate sign 22. After the initial readout is installed on the counter 5, the zone mark 2 is moved perpendicularly to the specified direction manually or by means of the electric drive 25. At the time of coincidence the center of the zone mark 2 with the center of the laser beam, the signals from the photodetectors 11 of the sensor 10 of the position of the center of the laser beam are compared, and a pulse comes from the output of the comparator 13 that turns on the modulator 14 and an emitter 15 (for example, an LED), then a signal is received by the photodetector 8 of the reading device 3.

At the time the signal arrives, the driver shaper 12 inserts a control pulse, according to which the contents of counter 5 is recorded in memory register 6 and outputted to indicator 7.

Thus, time synchronization of the time of reference with the moment of coincidence of the center of the band mark with the center of the laser beam without mechanical and electrical connections is carried out. This greatly facilitates the measurement process and increases labor productivity and measurement accuracy. Automating the process of counting and recording the results in machine memory reduces the likelihood of service failures and increases labor productivity both in measurements and in office processing of information.

Claims (1)

Invention Formula A laser lock-up device containing a laser meter attached to the initial point of the target, a zone mark and a laser beam position sensor, characterized in that it is equipped with a series-connected band position sensor, a pulse counter, a memory register and an indicator to control the measurement accuracy. in series with the first photodetector and the first amplifier, the output of which is connected to the second memory register input, the position sensor of the laser beam is mounted on the final the alignment point and is made in the form of a separating prism, a second and third photodetectors, a second and third amplifiers connected in series to a comparator, a modulator and a radiator; the outputs of the second and third photodetectors are connected via the second and third amplifiers to the first and second inputs of the comparator, respectively. D / g. 5 ha