DE19913674A1 - High resolution angle measuring instrument and range finder uses microcomputer to obtain calculation using several function programs stored in memory - Google Patents

Abstract

A start receiver (7) is fastened e.g. using magnets. A continuous line laser can be uses as transmitter (11) with the rotating mass interact with an operating switch. Light receivers (8) are used to receive a laser light. The mass is used to reduce oscillations of the synchronous motor. A computer is used to calculate all required functions using suitable programs stored in memory.

Description

The invention relates to an angle measuring device that rotates a small Inertia is used to measure the measured angle in a time number convert. For example: one revolution is 360,000,000 sec (degrees) or 400,000,000 sec (new degree).

The level of this flywheel is electromagnetic, or via light probes queried.

The distance is determined by two angle measurements and the tangent function of an object. The angle measuring device has a built-in Microprocessor that can store and process measured values, as well as a Keyboard and display.

There are many ways to measure an angle today, Absolutely Angle of rotation encoder, with a coding disk (Eiken code one bit changes) and are usually still provided with a gear transmission. Potentiometer the Specify voltage divisions in degrees, or mechanical line scales in one Circle are driven. All of these measurement methods have errors due to the mechanical play.

In my invention, a basic oscillator Fig. 1 No. 4 for generating high-frequency vibrations as a basic frequency, which is ten powers greater than the number of degrees (360 or 400 of the circle) a downstream frequency divider No. 5 for generating a drive frequency (100 Hz) for a synchronous motor no. 10 and a power amplifier no. 9 downstream of the frequency divider or a stepper motor control board if no. 10 a stepper motor is used. A step or synchronous motor no. 10 drives a flywheel no. 11 , which a light transmitter, or El.-magnetic transmitter that emits a focused signal. Two mobile receivers, Fig. 1 No. 7 of the start receiver and No. 8 of the stop receiver receive the emitted signals from the transmitter No. 11 which is in a rotating flywheel. A flip-flop No. 6 that opens and closes alternately with the received signals to supply an input voltage for a gate No. 3 when the flip-flop is open, the gate receiving a further input voltage via a branch No. 12 of the line leading to the frequency divider, a to the Output of the gate connected microcomputer No. 1 with digital display and keyboard No. 2 and integrated counter module with a counting frequency that corresponds to the basic frequency. The Integrated counter module downstream memory with a display portion whose digit number equal to, or smaller than that of the fundamental frequency and by a branch (13) for transmission of signals of the counting operation on the flip-flop triggering receiver no. 7 to the memory adapted (programmed) is to enter the basic frequency pulse sum stored in the memory from the previous counting process by deleting the stored pulse sum when the input of a trigger signal to the display part, so that the memory is free to receive a new pulse sum.

Mechanical fixation of the receiver probe

The start receiver probe No. 7 can be attached with the help of a magnet pointing north, or connected with an adjustable gyro. The start receiver can also be connected to the tripod mounting screw Fig. 2 No. 17 . Transmitter No. 11 with the rotating flywheel is running while operating switch No. 18 is switched on. Transmitter 11 can also be a continuous wave laser and probes 7 and 8 can be light receivers. The flywheel serves around the mech. To dampen vibrations of the synchronous motor.

The stop receiver probe is with the line of sight of the telescope connected. In the field of view of the telescope is a crosshair with lines. The telescope can be tilted for vertical and horizontal measurements.

The data is displayed on a mini sw. Screen in the field of view of the telescope shown.

To measure not only the angle but also the distance, a Reference distance e.g. B. 1 meter or a stereo rocker that delivers a defined distance. With this parallax you can measure the distance over the tangent. For such a parallax too can measure one also built-in electronics-mechanical tape measure its length is also projected into the visual display of the telescope.

The basic oscillator is switched by software as required at 360 MHz or 400 MHz grade.

The microcomputer program can at a fixed angle z. B. five Carry out angle measurements, add all pulses and by the number of Divide measurements, this compensates for errors. For example hands-free holding of the angle measuring device. Such an angle measuring device can also replace a leveling device or theodolites.

Dragonfly No. 19 and tripod screw No. 17 are intended for horizontal angle measurement. The level 20 and the tripod screw No. 21 are intended for vertical angle measurement (alignment). The measurement rotated by 90 degrees is primarily intended when an adjustable gyro is used. But a magnetic needle can also be turned 90 degrees, in this case the needle continues to point north (downwards towards the earth's magnet). Trigonometric height determination is also possible. The two dragonfly positions No. 19 , 20 are also shown in the field of view of the telescope. The measuring tape No. 14 can be pulled out and firmly attached with an eyelet No. 22 and locked with a locking screw No. 23 . With the help of the computer, odd degrees of the receiver probe No. 7 can be converted to zero, even though there is an odd angle value in the computer's memory.

Claims (3)

1. High-resolution angle measuring device and rangefinder, characterized in that a flywheel driven by a synchronous motor whose operating frequency is controlled by a basic oscillator (400 or 360 MHz). Characterized that a revolution of the flywheel takes 1 sec time and during this time a counter between in a microcomputer (PENTIUM up to 600 MHz) z. B. Counting 360 million pulses. And characterized in that the flywheel has a directional steel transmitter (e.g. LASER, light, static, magnetic), which are received by two receiver probes, which are rotatably mounted around the flywheel. A receiver is the start receiver, which can either be set with a gyroscope or connected with a magnetic needle pointing north. The second receiver rotatably mounted around the flywheel is the telescope sight axis itself. The telescope can be rotated by 90 degrees and the sight axis in order to measure the angle horizontally and vertically. For this purpose, dragonflies and tripods offset by 90 degrees are provided. With the help of the keyboard and the built-in microcomputer (microcomputers) and display, several measured angles and calculated distances are sent to the corresponding memory by using the appropriate trigonometric formulas (available in the computer) or for special applications, the formulas used must be entered directly using the keyboard and possibly saved. 2. High-resolution angle measuring device and range finder, according to claim 1, characterized in that the measuring process several times on a tripod is repeated, e.g. B. 10 times in 10 sec. (This corresponds to a circle 3600 000 000 pulses) to increase the degree of accuracy, whereby the calculator that is always ten decimal places behind the true angle value be displayed and offset. 3. High-resolution angle measuring device and rangefinder according to claim 1, characterized in that the same device also in Machine tools are installed without a telescope to be more precise To get circular divisions.