Novel off-axis handheld laser methane remote sensing instrument

Abstract

The utility model is suitable for the technical field of methane telemeters, and provides a novel off-axis handheld laser methane telemeter which comprises a laser telemetering module, a shell assembly and a handheld assembly. The laser telemetering module comprises a photoelectric shell, a receiving lens and a main control board; a detection laser emission module and an indication laser emission module are arranged in the photoelectric shell, and the detection laser emission module and the receiving lens are installed at an included angle of 10 degrees; the shell assembly comprises a shell body, a sighting telescope and a display screen. The handheld assembly comprises a handle body, a key and a battery; the handle body is connected with the shell body; the button is arranged on the handle body, and a battery is further arranged in the handle body. The device is high in precision detection and strong in portability and durability; the whole machine is light in weight and can be operated by a single hand; and maintenance can be facilitated through a modular structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of methane telemetry, and in particular relates to a novel off-axis handheld laser methane telemetry device. Background Technology

[0002] The handheld laser methane telemetry device is an advanced gas detection instrument specifically designed for the rapid and accurate measurement of methane (CH4) concentration in the air. This device plays a crucial role in various fields, including environmental monitoring, industrial safety, and oil and gas exploration.

[0003] The telemetry instrument emits detection lasers within a specific wavelength range. These lasers are diffusely reflected when they encounter reflective objects (such as the ground, valves, pipes, or walls) and return to the instrument's detection unit. If there is a methane leak forming a gas cloud in the beam path, a certain amount of laser light will be absorbed. Based on the ratio of unabsorbed light to absorbed light, the concentration of the methane gas cloud can be deduced.

[0004] However, most existing handheld laser methane telemetry instruments adopt a coaxial optical path design, which is easily affected by ambient light and background scattering interference, resulting in low signal-to-noise ratio and bulky size. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a novel off-axis handheld laser methane telemetry instrument, which aims to solve the problems mentioned in the background art.

[0006] This utility model is implemented as follows: a novel off-axis handheld laser methane telemetry device includes a laser telemetry module, a housing assembly, and a handheld assembly.

[0007] The laser telemetry module includes a photoelectric housing, a receiving lens, and a main control board; wherein, the receiving lens and the main control board are respectively installed at both ends of the photoelectric housing, the photoelectric housing has a built-in detection laser emission module and an indicator laser emission module, and the detection laser emission module is installed at a 10° angle to the receiving lens; the main control board is used to analyze methane concentration;

[0008] The housing assembly includes a housing body, a sight, and a display screen; the laser telemetry module is installed in the housing body, and the sight is coaxial with the laser beam path to assist the user in accurately locating the detection target; the display screen is used to display concentration data in real time.

[0009] The handheld component includes a handle body, a button, and a battery; the handle body is connected to the outer shell; the button is located on the handle body and is used for start detection and mode switching; the handle body also has a battery inside for power supply.

[0010] A further technical solution involves using silicone sealing rings at the seams of the outer casing.

[0011] In a further technical solution, the main control board is mounted on the photoelectric housing via a locking ring, which facilitates disassembly, maintenance, and subsequent upgrades.

[0012] In a further technical solution, a buzzer is also provided on the photoelectric housing, which is used to receive signals from the main control board and issue an alarm.

[0013] In a further technical solution, the housing assembly also includes a screen protector and a main control board protector.

[0014] In a further technical solution, the button is made of silicone material and features a waterproof and dustproof design.

[0015] In a further technical solution, the handle body adopts an ergonomic handle.

[0016] In a further technical solution, the battery is a removable lithium battery.

[0017] This utility model provides a novel off-axis handheld laser methane telemetry instrument, the beneficial effects of which are as follows:

[0018] (1) High-precision detection: The off-axis optical path design (10° angle) is adopted to effectively avoid interference from the coaxial light source. Combined with dual-wavelength laser detection technology, the signal-to-noise ratio is significantly improved and the detection sensitivity is high, making it suitable for methane concentration measurement in complex environments.

[0019] (2) Optimization of portability and durability: The whole machine is lightweight and can be operated with one hand; the shell components are sealed with silicone, providing a high level of protection and adapting to harsh outdoor working conditions.

[0020] (3) Modular and efficient maintenance: The main control board and lock ring can be quickly disassembled and assembled, reducing the complexity of maintenance.

[0021] (4) Intelligent interaction and long battery life: The display screen provides real-time data feedback, and the buzzer provides timely sound and light alarms to respond to concentration exceeding the standard; the removable lithium battery supports ≥20 hours of continuous operation to meet the needs of long-term inspection. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a novel off-axis handheld laser methane telemetry instrument provided for an embodiment of this utility model;

[0023] Figure 2 A schematic diagram of the laser telemetry module in a novel off-axis handheld laser methane telemetry device provided for an embodiment of this utility model;

[0024] Figure 3 A schematic diagram of the outer shell assembly in a novel off-axis handheld laser methane telemetry device provided for an embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the handheld component in a novel off-axis handheld laser methane telemetry device provided for an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the photoelectric housing in a novel off-axis handheld laser methane telemetry device provided for an embodiment of this utility model.

[0027] In the attached diagram: Laser telemetry module 1: photoelectric housing 1-1; detection laser emission module 1-1-1; indication laser emission module 1-1-2; buzzer 1-1-3; receiving lens 1-2; locking ring 1-3; main control board 1-4; housing assembly 2; housing body 2-1; aiming scope 2-2; display screen 2-3; screen protection cover 2-4; main control board protection cover 2-5; handheld assembly 3; handle body 3-1; button 3-2. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0030] like Figures 1-5 As shown, a novel off-axis handheld laser methane telemetry device is provided in one embodiment of the present invention, including a laser telemetry module 1, a housing assembly 2, and a handheld assembly 3;

[0031] The laser telemetry module 1 includes a photoelectric housing 1-1, a receiving lens 1-2, and a main control board 1-4. The receiving lens 1-2 and the main control board 1-4 are respectively mounted at both ends of the photoelectric housing 1-1. The photoelectric housing 1-1 houses a detection laser emission module 1-1-1 and an indication laser emission module 1-1-2. The detection laser emission module 1-1-1 is mounted at a 10° angle to the receiving lens 1-2 to avoid direct light interference, support dual-wavelength detection, and improve anti-interference capabilities. The main control board 1-4 is used to analyze methane concentration.

[0032] The outer casing assembly 2 includes an outer casing body 2-1, a sight 2-2, and a display screen 2-3; the laser telemetry module 1 is installed in the outer casing body 2-1, the sight 2-2 is coaxial with the laser beam path to assist the user in accurately locating the detection target; the display screen 2-3 is used to display concentration data in real time.

[0033] The handheld component 3 includes a handle body 3-1, a button 3-2, and a battery; the handle body 3-1 is connected to the outer shell body 2-1; the button 3-2 is located on the handle body 3-1 and is used for start detection and mode switching; the handle body 3-1 also has a battery inside for power supply.

[0034] In this embodiment of the invention, the handheld laser methane telemetry device is made of lightweight aluminum alloy, which effectively reduces the weight of the device.

[0035] In a preferred embodiment of this utility model, the seam of the outer shell 2-1 is sealed with a silicone sealing ring, and the protection level reaches IP67.

[0036] like Figure 2 As shown, in a preferred embodiment of this utility model, the main control board 1-4 is mounted on the photoelectric housing 1-1 by the locking ring 1-3, which facilitates disassembly, maintenance and subsequent upgrades.

[0037] like Figure 5 As shown, in a preferred embodiment of the present invention, a buzzer 1-1-3 is also provided on the photoelectric housing 1-1. The buzzer 1-1-3 is used to receive signals from the main control board 1-4 and to issue an alarm.

[0038] like Figure 3 As shown, in a preferred embodiment of the present invention, the outer shell assembly 2 further includes a screen protection cover 2-4 and a main control board protection cover 2-5. The screen protection cover 2-4 and the main control board protection cover 2-5 can achieve dust and drop protection and protect the internal circuit.

[0039] In a preferred embodiment of this utility model, the button 3-2 is made of silicone material and has a waterproof and dustproof design.

[0040] In a preferred embodiment of this utility model, the handle body 3-1 adopts an ergonomic handle to improve the operator's operating comfort.

[0041] In a preferred embodiment of this utility model, the battery is a removable lithium battery that supports fast charging and has a battery life of ≥20 hours.

[0042] Working Principle: In use, optical path calibration is first performed. The target is aligned using the aiming scope 2-2, and the indicator laser 1-1-2 is activated for positioning assistance. Then, the electronic system is debugged, detecting the light emitted by laser 1-1-1 towards the target gas, with the reflected light captured by the receiving lens 1-2. The main control board 1-4 processes the signal, loading an adaptive filtering algorithm to eliminate interference from ambient temperature and humidity (this part is existing technology and will not be described in detail here). The display screen 2-3 is linked with the buzzer 1-1-3, triggering an audible and visual alarm when a threshold concentration (2000 ppm·m) is set. Specifically, during data processing, the main control board 1-4 analyzes the absorption spectrum, calculates the methane concentration, and outputs it to the display screen 2-3. When the concentration exceeds the limit, the buzzer 1-1-3 triggers an audible and visual alarm, the data is automatically stored, and the data is sent to the cloud.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel off-axis handheld laser methane telemetry instrument, characterized in that, Includes a laser telemetry module, housing assembly, and handheld assembly; The laser telemetry module includes a photoelectric housing, a receiving lens, and a main control board; wherein the receiving lens and the main control board are respectively installed at both ends of the photoelectric housing, the photoelectric housing has a built-in detection laser emission module and an indication laser emission module, and the detection laser emission module is installed at a 10° angle to the receiving lens; The housing assembly includes a housing body, a sight, and a display screen; the laser telemetry module is installed in the housing body, and the sight is coaxial with the laser beam path; the display screen is used to display concentration data in real time. The handheld component includes a handle body, a button, and a battery; the handle body is connected to the outer shell body; the button is located on the handle body, and the battery is also located inside the handle body.

2. The novel off-axis handheld laser methane telemetry instrument according to claim 1, characterized in that, The main control board is mounted on the photoelectric housing via a locking ring.

3. The novel off-axis handheld laser methane telemetry instrument according to claim 1, characterized in that, The photoelectric housing is also equipped with a buzzer, which is used to receive signals from the main control board and issue an alarm.

4. The novel off-axis handheld laser methane telemetry instrument according to claim 1, characterized in that, The housing assembly also includes a screen protector and a main control board protector.

5. The novel off-axis handheld laser methane telemetry instrument according to claim 1, characterized in that, The button is made of silicone material.

6. The novel off-axis handheld laser methane telemetry instrument according to claim 1, characterized in that, The handle body adopts an ergonomic handle design.

7. The novel off-axis handheld laser methane telemetry instrument according to claim 1, characterized in that, The battery is a removable lithium battery.

Images