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JJF 1543-2015 PDF English

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JJF 1543-2015: Calibration Specification for Visual Electrophysiological Instruments
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JJF 1543-2015English649 Add to Cart 5 days [Need to translate] Calibration Specification for Visual Electrophysiological Instruments

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Basic data

Standard ID JJF 1543-2015 (JJF1543-2015)
Description (Translated English) Calibration Specification for Visual Electrophysiological Instruments
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A60
Classification of International Standard 17.180
Word Count Estimation 28,274
Date of Issue 2015-08-24
Date of Implementation 2015-11-24
Quoted Standard ISCEV(2003)
Regulation (derived from) AQSIQ Announcement 2015 No.106
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to the clinical use of visual electrophysiology instrument calibration.

JJF 1543-2015: Calibration Specification for Visual Electrophysiological Instruments


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Visual Electrophysiological Instruments People's Republic of China National Metrology Technical Specifications Calibration Specification for visual electrophysiology Issued on. 2015-08-24 2015-11-24 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Calibration Specification for visual electrophysiology Focal point. the National Technical Committee on Medical Measurement The main drafting units. China Institute of Metrology Participated in the drafting. Special Medical Equipment Co., Chongqing, China Shandong Province Institute of Metrology Chinese Academy of Sciences Institute of Optical Technology This specification entrusted to the National Technical Committee is responsible for interpreting medical measurement The main drafters of this specification. Set Xiang (China Institute of Metrology) HE Yu (Chongqing, China Special Medical Equipment Co., Ltd.) Zhang Ji Yan (China Institute of Metrology) Drafters participate. Sun Xin (Shandong Province Institute of Metrology) Bai Wei (Chongqing States special medical equipment Limited) Shi Guohua (Institute of Optoelectronic Technology Institute)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 average luminance pattern (1) 3.2 Graphics contrast (1) 3.3 brightness uniformity (1) 3.4 flash intensity (1) 3.5 flash duration (1) Latency 3.6 (1) 4 Overview (1) 5 Metrological characteristics (1) 5.1 flash intensity setting error (1) 5.2 flash duration (2) 5.3 flash stimulator background brightness setting error (2) 5.4 Graphics Contrast (2) 5.5 Graphics average brightness setting value error (2) 5.6 Graphics stimulator luminance uniformity (2) 5.7 shows the magnitude of the electrical signal error (2) 5.8 electrical signal frequency indication error (2) 5.9 latency indication error (2) Calibration Condition 6 (2) 6.1 environmental conditions (2) 6.2 standards and other measuring equipment (2) 7 calibration items and calibration methods (3) 7.1 appearance and function check (3) 7.2 flash intensity setpoint error (3) 7.3 flash duration (3) 7.4 flash stimulator background brightness setting error (3) 7.5 Graphics Contrast (3) 7.6 Graphics average brightness setting error (4) 7.7 Graphics stimulator luminance uniformity (4) 7.8 shows the magnitude of the electrical signal error (4) 7.9 Indication error frequency signals (5) 7.10 latency indication error (5) 8 calibration results expression (6) 8.1 Calibration records (6) 8.2 Calibration process results (6) 9 Recalibration interval (6) Appendix A visual electrophysiology instrument calibration original records (recommended) formatting styles (7) Appendix B calibration certificate within the page (recommended) formatting styles (10) Appendix C Measurement Uncertainty Example (14)

Introduction

This specification is for the measurement of technical regulations visual electrophysiology instrument calibration making. Preparation of this specification to JJF 1071-2010 "National Calibration Specifications writing rules", JJF 1001-2011 "common measurement terms and definitions" JJF 1059.1-2012 "Evaluation and Expression of Uncertainty in Measurement" as the basis and foundation, with reference to the ISCEV (2003) "Clinical Visual electrophysiological stimulation and recording parameters Calibration Guide" (Guidelinesforcalibrationofstimulusand recordingparametersusedinclinicalelectrophysiologyofvision) regulations. This specification is the first release. Calibration Specification for visual electrophysiology

1 Scope

This instruction applies to visual electrophysiology instrument calibration clinical use. 2. References This specification refers to the following documents. ISCEV (2003) "clinical visual electrophysiological stimulation and recording parameters Calibration Guide" (Guidelinesforcali- brationofstimulusandrecordingparametersusedinclinicalelectrophysiologyofvision) For dated references, only the dated edition applies to this specification; undated reference documents Member, the latest edition (including any amendments) applies to this specification.

3 terminology and units of measurement

3.1 Graphics average luminance meanluminanceofpattern The average of the graphic form of the highest brightness and the lowest brightness, unit. candela per square meter, symbol. cd/m2. 3.2 Graphics contrast patterncontrast Drawing light grid brightness and brightness contrast dark grid, expressed as a percentage. 3.3 brightness uniformity luminanceuniformity Graphics stimulator full brightness uniformity of display when expressed as a percentage. 3.4 flash intensity flashintensity Instantaneous flash of brightness integrated value time unit. seconds candela per square meter, symbol. cd · s/m2. 3.5 flash duration flashduration Single flash duration, unit. milliseconds symbol. ms. 3.6 latency latency Eye irritation from the received light signal to an electrical signal characteristic between the time delays, unit. milliseconds symbol. ms.

4 Overview

Visual electrophysiology instrument is one kind of electrophysiological signals measured by the human visual system after light stimuli to diagnose Instrument of visual function. Visual electrophysiology instrument to the human eye to light stimulation signal emitted by the stimulator while collecting electrode by the human visual system Biological signals generated by the electrical signal amplification and processing after recording and display, providing for clinical visual function Medical diagnosis. Visual electrophysiology instrument by the flash stimulation, graphics stimulator, electrode, signal acquisition, data processing Operating system and the display system.

5 Metrological characteristics

5.1 flash intensity settings error No more than ± 10%. ...

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