Optical lever method distance meter and measuring method thereof
A technology of optical lever method and rangefinder, which is applied in the field of measuring instruments, can solve the problems of lack of teaching demonstration effect, etc., and achieve the effect of clear principle, convenient assembly and simple operation
Pending Publication Date: 2018-03-30
SHENYANG JIANZHU UNIVERSITY
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Problems solved by technology
Tape measure and steel tape need two people to cooperate to complete the measurement, while the laser range finder has high precision and accurate measurement, but the instrument is automatic measurement and has no teaching demonstration effect
Method used
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[0024] Such as figure 1 As shown, an optical lever method rangefinder is composed of two parts: a distance measuring device and a mirror scale 9, and its structure is as follows: the laser pointer 2 is fixed on the rotating frame 5 with a spring piece, and the spiral micrometer 3 is welded on the On the fixed frame 6, the rotating frame 5 around the axis is fixed on the polished rod 8 connected to the base 1 by the pin 4, and the fixed frame 6 is fixed on the polished rod 8 connected to the base 1 with screws, and its height can be adjusted along the polished rod 8. The screws are fastened, the tip of the spiral micrometer 3 is on the tail of the laser pointer 2, and the laser pointer 2 is fixed on the pivoting frame 5 that can rotate around the pin 4. When measuring, rotate the rod body at the bottom of the spiral micrometer 3, Then the top of the spiral micrometer 3 moves vertically, pushing the laser pointer 2 to rotate around the axis, so that the distance moved by the tai...
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The invention provides an optical lever method distance meter which can be used for physics experiment teaching. An optical lever principle is adopted, and an experimental apparatus which is formed bya distance measuring part and a mirror surface ruler part and can measure the distance of 2-5 meters is designed. The measuring part in the apparatus comprises a laser pen and a screw micrometer, during measuring, the screw micrometer is rotated so that the tip of the micrometer moves upward, the tail part of the laser pen which is in contact with the screw micrometer is pushed to rotate around afixed axis accordingly, the laser pen and the light ray form the optical lever, and the distance from a mirror surface ruler to a measuring apparatus can be measured by measuring the movement distance of the tip of the screw micrometer, the arm length of the laser pen and the movement distance of a laser point on the mirror surface ruler. According to the device, the principle is simple, measurement is accurate, dismounting and mounting are convenient, the basic adjustment skill of experiential measurement and the training content of the use method of a length apparatus are contained, and thedevice is very suitable for basic experimental teaching.
Description
technical field [0001] The invention relates to a measuring instrument, in particular to a novel optical lever method distance measuring instrument and a measuring method thereof. Background technique [0002] The measurement of length is often used in production and life. The dimensions of the product, the height of the human body, and how far the distant starry sky is from us are all issues related to length or distance measurement. Reading microscopes and laser interferometers can be used to measure tiny lengths, satellite locators and optical telescopes can be used for long-distance measurements, and tape measure, steel ruler and laser rangefinders can be used for measurements within 1m to 100m. [0003] In the teaching of physics experiments, tape measure, steel tape and laser range finder are often used to measure the length of more than 1 meter. The tape measure and the steel tape measure require two people to cooperate to complete the measurement, while the laser ra...
Claims
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IPC IPC(8): G01C3/00G01B5/02G09B23/06
CPCG09B23/06G01B5/02G01C3/00
Inventor 樊旭峰单海江颜婷婷陈彪马振宁李星于智清李强单亚拿王逊
Owner SHENYANG JIANZHU UNIVERSITY