YY/T 0756-2009Optics and optical instruments - Lasers and laser-related equipment - Test method of laser beam power (energy) density distribution (English PDF)
光学和光学仪器 激光和激光相关设备 激光光束功率（能量）密度分布的试验方法
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Issued by
NMPA
Level / Type
Industry · Recommended
Issue date
December 30, 2009
Implementation date
June 1, 2011
Scope
YY/T 0756-2009 is the English-translated version of 光学和光学仪器 激光和激光相关设备 激光光束功率（能量）密度分布的试验方法.
YY/T 0756-2009 is the Chinese pharmaceutical industry standard, identical to ISO 13694:2000, that gives the test method for the power (energy) density distribution of laser beams.
It defines the measured quantities, such as power density, energy density and power at a given plane, and the characteristic parameters derived from the measured spatial distribution, and covers distribution fitting, the coordinate system, the test principle, the measuring arrangement with detector system, attenuators and beam splitters, detector calibration, data recording and noise correction, background correction and the test report.
It applies to continuous and pulsed laser beams used in optics and optical instruments. Issued on 30 December 2009, it has applied since 1 June 2011.
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Document preview — YY/T 0756-2009
National Standard of the People's Republic of China
- Classification
- C 41
Issued by: National Medical Products Administration of the People's Republic of China
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Measuring volume
- 3.2 Characteristic parameters
- 3.3 Distribution fitting
- 4 Coordinate system
- 5 Characteristic parameters derived from the measured spatial distribution
- 6 Distribution fitting
- 7 Test Principle
- 8 Measuring arrangement and test equipment
- 8.1 Overview
- 8.2 Preparation
- 8.3 Environmental control
- 8.4 Detector system
- 8.5 Beam shaping optics, optical attenuators and beam splitters
- 9 Test procedure
- 9.1 Equipment preparation
- 9.2 Detector calibration procedure
- 9.3 Data recording and noise correction
- 10 Evaluation
- 10.1 Selection and optimization of integral limits
- 10.2 Control and optimize background correction
- 11 Test report
Foreword
This standard is equivalent to ISO 13694:2000 "Optical and optical instrument laser and laser related equipment laser beam power (energy) Test Method for Density Distribution" and Technical Corrigendum Cor1.2005 (English version).
Many applications of lasers involve the use of near-field and far-field power (energy) density distributions of laser beams. The power of the laser beam (energy The characteristic of the density distribution is the spatial distribution of the irradiation power (energy), and it is the lateral distribution of a specific plane perpendicular to the direction of propagation.
Generally, the power (energy) density distribution of the laser beam changes with the propagation direction.
1 Scope
This standard specifies the method for measuring the power (energy) density distribution and defines the laser power (energy) density distribution function on a given plane Number of characteristic parameters.
The methods specified in this standard are suitable for detecting and describing the characteristics of continuous laser and pulsed laser beams used in optical and optical instruments.
2 Normative references
The clauses in the following documents constitute the clauses of this standard through reference in this article. For dated reference documents, all subsequent The amendments (not including errata content) or revisions do not apply to this standard. However, all parties that have reached an agreement based on this standard are encouraged to study Is the latest version of these files available? For undated reference documents, the latest version applies to this standard.
GB/T 15313-2008 Laser Terminology (MOD, ISO 11145:2006)
JB/T 6860-1993 Detectors, instruments and equipment for measuring laser radiation power energy (MOD, IEC 1040:1990)
ISO 11146:1999 Lasers and laser-related equipment-Test methods for laser beam parameters-Beam width, divergence angle and beam propagation factor
ISO 11554:1998 Optics and optical instruments-Lasers and laser-related equipment-Test methods for laser beam power, energy and temporal and spatial characteristics
3 Terms and definitions
The following terms and definitions defined in GB/T 15313-2008 and JB/T 6860-1993 apply to this document.
3.1 Measurement volume
3.1.1 Power density
E(x,y,z)
The power of the beam projected on the deltaA area of (x,y) at position z is divided by the area deltaA.
3.1.2 Energy Density
H(x,y,z)
< Pulse laser beam> The beam energy (integration of power versus time) projected on the deltaA area of (x, y) at position z divided by the area.
3.1.3 Power
P(z)
The power of the continuous beam (cw) of the beam at position z.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 15313-2008Terminology for laser
- JB/T 6860-1993Power and Energy Measuring Detectors, Instruments and Equipment for Laser Radiation
ISO 11146:1999 · ISO 11554:1998
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Related Standards
GB/T 15313-2008 — Terminology for laser
JB/T 6860-1993 — Power and Energy Measuring Detectors, Instruments and Equipment for Laser Radiation
YY/T 0297-2026 — General requirements for clinical investigation of medical devices
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