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Photoelectric curve distance meter

A technology of distance meter and curve, applied in the field of photoelectric curve distance meter, can solve the problems of single shape, poor precision and complicated operation of curve measurement tools, and achieve the effect of conforming to ergonomics, reducing the weight of the instrument and stable performance.

Inactive Publication Date: 2010-08-11
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These problems are mapped to the market, making the curve measurement tool single in appearance, poor in accuracy and complicated in operation

Method used

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  • Photoelectric curve distance meter
  • Photoelectric curve distance meter
  • Photoelectric curve distance meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Implementation example one: see figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 , The photoelectric curve rangefinder includes a handle 1, an LCD display 2, a telescopic rod 3, a measuring wheel 9, a photoelectric counter 6, a grating 7 and a rotating shaft 8. The measuring wheel 9 and a support wheel 10 are installed side by side to form a double-wheel mechanism; the grating 7 is set on the rotating shaft 8 and fixedly connected with the measuring wheel 9, and the photoelectric counter 6 is fixed on the telescopic rod 2 to align with the grating 7 , constitute a measuring mechanism; the front end of the handle 1 is connected with the telescopic rod 3, the LCD display 2 is set at the joint, and the output of the photoelectric counter 6 is connected to the LCD display 2 to form a display system; the telescopic rod 3 adopts Telescoping rod.

Embodiment 2

[0032] Implementation example two: this implementation example is basically the same as implementation example one, and the features are as follows: see Figure 4 , Figure 5 , Figure 6 , the double-wheel mechanism that above-mentioned measuring wheel and supporting wheel constitute is: left wheel is measuring wheel 9, and right wheel is supporting wheel 10, and middle is connected by rotating shaft 8, and rotating shaft 8 is fixed on the casing 4, and two wheels are coaxial in measuring process Rotate; during measurement, the measurer tries to make the measuring wheel 9 close to the actual position of the measured curve, and rolls the measuring wheel 9 for measurement; the supporting wheel 10 plays an auxiliary measurement role in the straight walking process; when curve measurement is required, The measurer offsets the measuring wheel according to the tangential direction of the curve, and the supporting wheel 10 provides support for the measuring wheel to prevent the meas...

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PUM

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Abstract

The invention relates to a photoelectric curve distance meter which comprises a handle, an LCD (liquid crystal display), a telescopic rod, a measuring wheel, a photoelectric counter, a raster and a rotating shaft, wherein the telescopic rod can realize up-and-down stretching and shrink the space volume; the LCD at the front end of the handle is convenient for an operator to read and operate data in time. The invention can push a rolling wheel by holding the handle through a hand to roll according to the practical track position of the measured curve, convert a counting result obtained by a pulse signal of the counter into the practical length of the curve and realize the length measuring function on a plane and a stereoscopic curve, thereby helping a traffic police to measure the brake distance and helping an engineer and a teacher to measure a common curve distance. The invention has simple structure, adjustable height, convenient and precise measurement and convenient and rapid operation.

Description

technical field [0001] The invention relates to a photoelectric distance measuring instrument, especially a photoelectric curve distance measuring instrument, which cuts off an infrared photoelectric counter in a rolling form through a grating to obtain a pulse signal for counting, and then calculates the distance of the actual curve obtained by rolling the measuring wheel. The measurer holds the handle, adjusts the telescopic rod to adapt to the measurer's height, measurement environment and measurement method, and rolls the measuring wheel according to the actual position of the curve, finally realizing the function of measuring the distance of a plane or a three-dimensional curve. Background technique [0002] With the development of society, the problem of measurement of curve distance is increasingly presented. How to measure it accurately and conveniently has become a research hotspot. These problems are mapped to the market, making the curve measurement tool single in...

Claims

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Application Information

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IPC IPC(8): G01S17/10G01S7/481G01S7/51
Inventor 许东旭虞世鸣
Owner SHANGHAI UNIV