光辐射设备的功率测量及传输系统的防爆技术研究

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3.0 牛悦 2024-11-19 4 4 878.33KB 80 页 15积分
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随着激光LED光纤技术发展光辐射设备越来越多的被用于生产
照明测量活动中在这些活动中高能量光辐射吸收体吸收后,可
能会为高温颗粒爆炸性环境一旦达到燃烧条件,极易发生
因此要对光辐射点燃源起足够
章介绍光辐射机理,并研究用的两种
a) 光辐射颗粒吸收后,使它们度升使
们达到点燃周围爆炸性环境
b) 束聚焦处激光直接致气分解,产生子和冲击波最终
点燃源接近分解材料对这些过程起到支持作用。
课题进了解光辐射点燃三种防爆技术光辐射、保护型光辐
联锁装置系统
光辐射能量理,结合虚拟仪器发展
开发光辐射设备辐射功率测量系统
研究工作
1.对光辐射信号进行分类识对不种类辐射同的
实现信号的采测量要相应信号理电,以便放
数据采匹配
2.LabVIEW 平台系统行编程原理分研究数据采
、数据分理、数据印和数据显示实现方法
3.介绍防爆技术理、概念和分研究光辐射防爆技术防爆
理,光辐射功率测量系统光辐射评价数进行了采
研究光辐射设备传输系统的保措施光辐射防爆评价的解
课题研究表明光辐射设备功率测量系统可以实现防爆技术中
评价参数的规定的值予比参光辐射防爆技术
防爆技术理,结合危险评定规,解光辐射设备传输系统的的防爆
关键辐射 技术 电池 电二极管 LabVIEW
ABSTRACT
With the development of the lasers, LEDs, optical fibers, optical radiation
equipment is increasingly used for production, transmission, lighting and measurement.
In these activities, the high optical radiation is absorbed by the absorbers, which may
become hot surfaces or particles at the high temperature. Once they reach the
combustion conditions, to be prone to explosion in the explosive environment.
Therefore, it is considerable necessary to pay sufficient attention to the optical radiation.
This paper described four possible ignition mechanisms, focusing on two
commonly used.
a) Optical radiation is absorbed by surfaces or particles, causing them to heat up,
and, under certain circumstances, this may allow them to attain a temperature which
will ignite a surrounding explosive atmosphere.
b) Direct laser induced breakdown of the gas at the focus of a strong beam,
producing plasma and a shock wave both eventually acting as the ignition source. These
processes can be supported by a solid material close to the breakdown point.
The thesis brought in three explosion-proof technology to protect the optical
radiation equipmentinherently safe optical radiation, protected optical radiation,
optical system with interlock.
In addition, based on the basic principle of limiting the energy in the inherently
safe optical radiation, combined with the virtual instrument, system was designed for
measuring the power of the optical radiation equipment.
The specific research works are as follows:
1. Optical radiation signals were classified into different types of radiation.
Different photoelectric sensors were used to achieve the acquisition of the optical
signals. According to the measurement requirements, signal conditioning circuits were
designed appropriately, in order to match the amplified signal and the input of data
acquisition card.
2. Principles of programming on system software were analyzed based on
LabVIEW to complete the function of data acquisition and storage, data analysis, data
printing and data display.
3. This paper introduced the basic principles of explosion-proof technology,
concepts and classifications, the explosion-proof mechanism of optical radiation. With
the use of optical radiation power measurement system, the inherent the safe optical
radiation evaluation parameters were picked up. The article studied the protection
measures of the optical radiation equipment and transmission system, in addition, it
provided the solution of the optical radiation explosion-proof evaluate.
The research showed that the optical radiation device power measurement system
can be achieved to obtain the evaluation parameters compared with reference to the
limits specified in the standard of inherently safe explosion-proof technology.
According to the optical radiation explosion-proof technology and common proof
techniques, combined with the risk assessment rules, explosion-proof problem of the
optical radiation equipment and transmission system was solved.
Key Words: Optical radiation, Explosion proof technology, Photocell,
Photo diode, LabVIEW
目录
摘要
ABSTRACT
一章 ...................................................... 1
§1.1 课题研究背景及 ...................................... 1
§1.2 国内外研究现状 ............................................ 2
§1.3 课题要研究内容 ........................................ 2
§1.4 技术本文的工作 .................................. 3
§1.4.1 数据采系统 ......................................... 4
§1.4.2 防爆技术 ......................................... 4
§1.4.3 光辐射引机理 ....................................... 5
§1.4.4 本文的组织 ....................................... 6
二章 光辐射测量本理论 ......................................... 8
§2.1 光辐射测量础知 ........................................ 8
§2.1.1 光辐射 ............................................. 8
§2.1.2 辐射学关 .................................. 10
§2.2 光辐射测量 ........................................... 11
§2.2.1 体辐射 .......................................... 11
§2.2.2 替代绝对辐射 .................................... 12
§2.2.3 测量方法 ........................................ 12
§2.3 测量系统 ............................................. 13
§2.3.1 测量系统 .................................... 14
§2.3.2 源信号 ........................................ 14
§2.3.3 光辐射设备 .......................................... 15
§2.3.4 ............................................ 21
§2.3.5 光辐射系统 .................................. 25
§2.4 ................................................. 26
三章 光辐射功率测量系统 .................................. 27
§3.1 光辐射测量系统 ................................... 27
§3.2 数据采单元 ............................................. 29
§3.2.1 数据采系统原 .................................... 29
§3.2.2 数据采系统的构成 .................................. 29
§3.2.3 数据采 .................................... 30
§3.3 ............................................... 31
§3.3.1 器性 .................................. 31
§3.3.2 种类及特 .............................. 34
§3.3.3 ...................................... 34
§3.3.4 转换 ................................ 35
§3.3.5 光辐射测量 ...................................... 36
§3.4 测量光 ......................................... 37
§3.4.1 ............................ 37
§3.4.2 测光及负载特 ........................ 38
§3.4.3 LM358 .................................. 40
§3.4.4 大电 ........................................ 41
§3.5 二极测光 ....................................... 42
§3.5.1 二极的构成 .............................. 42
§3.5.2 PIN 二极 ............................. 44
§3.5.3 CA3140 ........................................ 44
§3.5.4 二极测光 .................................. 45
§3.5.5 信号理电 .................................... 46
§3.6 ......................................... 48
§3.7 ................................................. 48
第四 光辐射功率测量系统计原 .............................. 50
§4.1 虚拟仪器LabVIEW ....................................... 50
§4.1.1 虚拟仪器 ............................................ 50
§4.1.2 虚拟仪器开发平台 LabVIEW ............................ 51
§4.2 思想及总体设 ................................... 52
§4.3 模块 ............................................. 53
§4.3.1 数据采储模块 ................................ 53
§4.3.2 LabVIEW 访问数据库 ................................... 54
§4.3.3 数据模块 ........................................ 54
§4.3.4 图像显示模块 ........................................ 55
§4.3.5 数据分析模块 .................................... 55
§4.4 ................................................. 56
第五 光辐射设备传输系统防爆技术 .............................. 57
§5.1 防爆技术 ............................................. 57
§5.2 防爆技术概念及 ................................... 58
§5.2.1 设备环境 .................................. 58
§5.2.2 设备温组别进行分 .............................. 59
§5.2.3 爆炸性 .......................... 60
§5.2.4 按危险 ...................................... 60
§5.2.5 设备 .................................. 61
§5.3 光辐射防爆技术 ....................................... 62
§5.4 光辐射防爆型 ........................................... 63
§5.4.1 光辐射op is ............................ 64
§5.4.2 护型光辐射op pr ............................... 66
§5.4.3 光辐射联锁装置op sh ............................. 67
§5.5 ................................................. 68
.................................................. 69
§6.1 ..................................................... 69
§6.2 ..................................................... 69
附录 A吸收辐射体1064nm805nm
8393
%,%
αα==
1064nm 连续辐射
情况辐射点燃功率 ........................................... 70
附录 B 点燃曲线 ....................................... 71
........................................................... 72
公开发表的论文和承担项目取得 ..................... 75
............................................................. 76
摘要:

摘要随着激光、LED、光纤技术的发展,光辐射设备越来越多的被用于生产、传输、照明、测量等活动中。在这些活动中,高能量的光辐射被吸收体吸收后,可能会成为高温热表面或颗粒,在爆炸性环境中,一旦达到燃烧条件,极易发生爆炸。因此,需要对光辐射点燃源引起足够重视。文章介绍了光辐射的引燃机理,并重点研究常用的两种。a)光辐射被表面或颗粒吸收后,使它们的温度升高,在某些条件下,会使它们达到点燃周围爆炸性环境的温度。b)在强光束聚焦处激光直接导致气体分解,产生等离子和冲击波,二者最终成为点燃源。接近分解点的固体材料能够对这些过程起到支持作用。课题引进了解决光辐射点燃的三种防爆技术:固有安全光辐射、保护型光辐射...

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作者:牛悦 分类:高等教育资料 价格:15积分 属性:80 页 大小:878.33KB 格式:PDF 时间:2024-11-19

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