Field remote spectrum detection device and method

Abstract

A field remote spectrum detection device comprises a device shell, an area-array camera, a convergence lens, an optical fiber probe and an optical fiber spectrograph, wherein the area-array camera, the convergence lens, the optical fiber probe and the optical fiber spectrograph are arranged in the device shell, a convergence lens hole and an area-array camera hole are formed in the same side wall of the device shell at the same time, the convergence lens is arranged on the inner side of the convergence lens hole, the area-array camera is arranged on the inner side of the area-array camera hole, the convergence lens and the area-array camera are arranged in parallel, and the convergence lens is connected with the optical fiber spectrograph through the optical fiber probe. The invention discloses a field remote spectrum detection method at the same time. Compared with the prior art, the field remote spectrum detection device and method have the advantages that long-distance spectrum detection can be achieved for the distance detected through a field spectrum; a target where the spectrum is collected can be accurately positioned through images; the range of the target of the collected spectrum can be accurately controlled through the convergence lens, and the long-distance and small-target spectrum detection can be achieved.

Description

technical field [0001] The invention relates to an on-site long-distance spectral detection device and method, belonging to the technical field of spectral detection. Background technique [0002] When performing spectral detection on the target on site, a fiber optic spectrometer is usually used. In order to ensure the accuracy of the measurement, the measurement method is to hold the fiber optic probe and point the fiber optic probe at the target at close range to collect the spectrum, generally within a few centimeters. When performing spectral measurement on a long-distance target, since the fiber optic probe is far away from the target, this method will encounter the following difficulties: (1) it cannot ensure that the fiber optic head is accurately pointed to the measured target; (2) due to the The numerical aperture of the optical fiber used in the spectrometer is relatively large. When the detection target is far away, all the light in the field of view of the optic...

AI Technical Summary

Problems solved by technology

When performing spectral measurement on a long-distance target, since the fiber optic probe is far away from the target, this method will encounter the following difficulties: (1) it cannot ensure that the fiber optic head is accurately pointed to the measured target; (2) due to the The numerical aperture of the optical fiber used in the spectrometer is relatively large. When the detection target is far away, all the light in the field of view of the optical fiber probe enters the spectrometer, making it impossible to perform spectral detection on the specified small target.

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