Outdoor calibration method for infrared range finder

An infrared rangefinder and external calibration technology, which is applied in the field of rangefinder calibration, can solve problems such as the lack of on-site calibration methods, and achieve the effect of saving calibration time and wide application range

Active Publication Date: 2020-10-13
安东仪器仪表检测有限公司
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Problems solved by technology

[0003] At present, infrared range finders need to use standard steel tape devices (within 50m) or standard length baseline devices (50m ~ 200m) to perform indication error verification under laboratory conditions, but the 50m standard steel tape verification platform and standard length reference are generally There are no p

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  • Outdoor calibration method for infrared range finder

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Embodiment Construction

[0033] In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose of the invention, the specific implementation and structure of an outdoor calibration method for an infrared range finder proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , features and their effects are described in detail below.

[0034] An embodiment of the present invention provides an outdoor calibration method for an infrared range finder, such as figure 1 As shown, the method includes:

[0035] 101. Select a preset calibration site, and determine the initial point and measurement direction.

[0036] Specifically, since the infrared range finder calculates the distance by emitting infrared rays and detecting and receiving the reflected infrared rays, when calibrating the infrared range finder, it needs to be in the wilderness or road that can facilit...

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Abstract

The invention discloses an outdoor calibration method for an infrared range finder, and relates to the technical field of range finder calibration. The method comprises the following steps: selectinga preset calibration site, and determining an initial point and a measurement direction; placing a laser ranging sensor at the initial point, determining a base line along the measurement direction bymatching with a reflecting plate, and setting a first base point with a preset distance from the initial point on the base line; using a theodolite and a benchmark instrument to measure and extend the base line in the measuration direction, setting a second base point-Nth base point at the extending part of the base line at intervals, and enabling the distance between every two adjacent base points to be smaller than or equal to the measuring limit of the laser distance measuring sensor; placing a measured infrared range finder at the initial point, setting a measurement point on the baselinealong the measurement direction, measuring the distance L of the measurement point by using the measured infrared range finder, and measuring the distance L' from the measurement point to the initialpoint based on the first base point to the Nth base point by using the laser range finding sensor; and subtracting the distance L from the distance L' to obtain an error value delta L of the measuredinfrared range finder.

Description

technical field [0001] The invention relates to the technical field of rangefinder calibration, in particular to an outdoor calibration method for an infrared rangefinder. Background technique [0002] Infrared rangefinder is a portable measuring instrument that uses laser as the carrier and is characterized by diffuse reflection measurement on the target surface. It uses pulse method, phase method and other methods to measure the short-range distance in space. Used in industrial measurement and control, mines, ports, military and other fields. [0003] At present, infrared range finders need to use standard steel tape devices (within 50m) or standard length baseline devices (50m ~ 200m) to perform indication error verification under laboratory conditions, but the 50m standard steel tape verification platform and standard length reference are generally There are no provincial-level metrology technical institutions, and the national-level metrological technical institutions ...

Claims

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Application Information

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IPC IPC(8): G01S7/497
CPCG01S7/497
Inventor 武大志伍海峰周婷
Owner 安东仪器仪表检测有限公司
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