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Miniature laser methane telemetering device

A telemetry device and laser technology, applied in the field of methane telemetry, can solve the problems of large size of optical lens, large spherical aberration, poor image quality, etc., and achieve the effects of high measurement performance, reduced volume, and good portability

Pending Publication Date: 2021-06-25
数量级(上海)信息技术有限公司
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Problems solved by technology

High-power lasers and large-diameter lenses occupy a large volume of space, and the spherical aberration of a single large-diameter spherical optical lens is generally large, and a longer focal length is required to reduce the spherical aberration of the optical system. The volume of such an optical lens Large, poor image quality, reducing portability and measurement performance of laser methane telemetry devices

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  • Miniature laser methane telemetering device
  • Miniature laser methane telemetering device
  • Miniature laser methane telemetering device

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail through the following embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] The serial numbers assigned to components in this article, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application include direct and indirect connection (connection) unless otherwise specified. In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", "cl...

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Abstract

The invention discloses a miniature laser methane telemetering device which comprises an indicating laser, a tunable laser, a detector, an optical receiving lens and a circuit board. The indicating laser and the tunable laser are arranged in parallel in axis, the optical receiving lens and the tunable laser are arranged in parallel in axis, the optical receiving lens is arranged on a reflection light path of the tunable laser, and the detector is arranged behind the optical receiving lens and collinear with the optical receiving lens in axis. The circuit board is electrically connected with the indicating laser, the tunable laser and the detector, and the optical receiving lens adopts a single aspheric optical lens with a large numerical aperture. Compared with a laser methane telemetering device in the prior art, the size of the device is greatly reduced on the premise that the operating distance and the measurement sensitivity are not changed, and the measurement performance is relatively high.

Description

technical field [0001] The invention relates to the technical field of methane telemetry, in particular to a miniature laser methane telemetry device. Background technique [0002] Since the laser methane remote measurement has the following advantages: (1) There is no contact chemical reaction between the laser and the gas, which will not affect the composition and form of the gas to be measured; (2) Realize remote telemetry, and remote measurement of dangerous gases can be carried out. The transmission distance of the sensor can reach several kilometers to ensure the safety of the testers; (3) The concentration detection is carried out through the resonance absorption of the specific laser by the gas, the measurement accuracy is extremely high, and the lower limit of the measurement can reach the ppm level; (4) Intrinsically safe, the sensor end It is not easily interfered by electromagnetic radiation and does not generate sparks; (5) The monitoring of each gas corresponds...

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Application Information

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IPC IPC(8): G01N21/39
CPCG01N21/39
Inventor 王海伟肖琳
Owner 数量级(上海)信息技术有限公司
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