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Laser ruler capable of obtaining length of long object through one-time measurement and control method thereof

A technology of single measurement and control method, applied in the direction of measurement device, mechanical measurement device, and optical device, etc., can solve the problem that can only be estimated from a distance, the measurement of tall objects is inconvenient, and the scale is difficult to directly read the length of long objects. and other problems, to achieve the effect of reducing measurement error and simple and reliable measurement method.

Pending Publication Date: 2021-03-09
江苏苏威尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem that the scale can only be estimated from a distance when it cannot be measured directly; solves the problem that the scale is difficult to directly read the length of long objects; solves the problem that taller objects are inconvenient to measure

Method used

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  • Laser ruler capable of obtaining length of long object through one-time measurement and control method thereof
  • Laser ruler capable of obtaining length of long object through one-time measurement and control method thereof
  • Laser ruler capable of obtaining length of long object through one-time measurement and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0035]DETAILED DESCRIPTION 1: Measure the length of the short distance object;

[0036] Append image 3 As shown, the experimental steps are:

[0037] Step 1: Open the laser switch;

[0038] Step 2: One end of the object is aligned with the zero-trim line of the scale line, and the tick is close to the object;

[0039] Step 3: Move the first laser emitter until the transmitted red line is aligned with the other end of the object; to read the length of the object at this time.

specific Embodiment 2

[0040] DETAILED DESCRIPTION 2: Measure the height of the street lamp for long distances;

[0041] Append Figure 4 As shown, the experimental steps are:

[0042] Step 1: Open the laser switch;

[0043] Step 2: The scale of the tissue is tightened by the lamppost and the scale of the scale and the lamppost are vertical;

[0044] Step 3: Turn the second laser emitter until the red line transmitted to the street light; read the angle between the red line and the body is α, the height h = L * Tanα of the street lamp, where L is the length of the scale. As the length of the drawing of the laser is 35cm, the street lamp height: h = 0.35m * tan85.0 = 4.0m, is displayed directly on the display.

specific Embodiment 3

[0045] DETAILED DESCRIPTION 3: Huke's law experiment, spring elongation measurement;

[0046] Append Figure 5 As shown, the experimental steps are:

[0047] Step 1: Open the laser switch;

[0048] Step 2: Put the laser foot Figure 5 The scales shown in the scales are hanging on the iron frame; when the spring is not suspended, the zero-trim line is aligned with the suspension point;

[0049] Step 3: After hooking the hook code, move the first laser transmitter until the transmitted red line is aligned with the other end of the object; to read the elongation length of the spring.

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Abstract

The invention discloses a laser ruler capable of obtaining the length of a long object through one-time measurement and a control method thereof. A guide rail for moving a first laser emitter is arranged at the upper end of the front face of the laser ruler. A second laser emitter is rotatably mounted at the non-zero scale line end of the graduated scale body; the laser ruler control circuit comprises a first laser emitter data acquisition circuit, a second laser emitter data acquisition circuit and a CPU; when the laser emitter of the first laser emitter data acquisition circuit moves, the resistance in the linear sliding push-pull potentiometer changes, the current sensor measures the change value of the current and transmits the change value to the CPU, and the CPU calculates the lengthof the measured object; and when a second laser transmitter of the second laser transmitter data acquisition circuit rotates around a shaft by a certain angle, the resistance of the knob potentiometer changes, the current sensor measures a current change value in the circuit and transmits the current change value to the CPU, and the CPU calculates the length to be measured. The measured length isnot limited to the measuring range of the scale lines.

Description

Technical field [0001] The present invention relates to the field of length measuring equipment, and more particularly to a single measurement to obtain a laser scale and a control method thereof. Background technique [0002] The scale is a general instrument as the most important equipment for measurement displacement, and is widely used in various mid-physics experiments. There are many limitations in the scale of reality. For example, the length is limited, and the general student is only 30 cm or 40cm long. When measuring longer objects, you need to make a marker superposition measurement. This will not only cost time, but will also cause additional errors. For example, a single pendulum can be measured in a medium physics, which can be 1M or 1.5m; the railway of the carrier can be measured, which can be up to 1 m or 1.2m. This allows students to measure directly with the scale of scale. This problem can be solved by the tape measure, usually 2m to 3m long. But still sometim...

Claims

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Application Information

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IPC IPC(8): G01B5/02G01B11/02
CPCG01B5/02G01B11/02
Inventor 王知非
Owner 江苏苏威尔科技有限公司
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