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JJF 1518-2015: Calibration Specification for Medical Ultrasonic Field Measurement Systems
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JJF 1518-2015: Calibration Specification for Medical Ultrasonic Field Measurement Systems

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Calibration Specification for Medical Ultrasonic Field Measurement Systems People's Republic of China National Metrology Technical Specifications Medical ultrasonic field measurement system calibration specifications Issued on. 2015-04-10 2015-07-10 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Medical ultrasonic field measurement system Calibration Specification Focal point. the National Committee of the acoustic measurement technology Drafting unit. Henan Institute of Metrology China Institute of Metrology Zhengzhou Institute of Light Industry This specification metering commissioned National Technical Committee is responsible for interpreting acoustics Drafters of this specification. Zhu Weimin (Henan Institute of Metrology) Edge Wen Ping (China Institute of Metrology) Cao Lingzhi (Zhengzhou University of Light Industry) Qi Fang (Henan Institute of Metrology) Fannai Yin (Henan Institute of Metrology)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 The maximum time-averaged sound power (maximum power) (1) 4 Overview (1) 5 Metrological characteristics (2) 5.1 hydrophone positioning system (2) 5.2 hydrophone (2) 5.3 The maximum time-averaged sound power (2) Calibration Condition 6 (2) 6.1 environmental conditions (2) 6.2 standards and other measuring equipment (2) 7 calibration items and calibration methods (2) 7.1 calibration items (2) 7.2 Calibration method (3) 8 calibration results (4) 8.1 Calibration Data Processing (4) 8.2 calibration certificate (5) 9 Recalibration time and space (5) Appendix A calibration certificate (6) Appendix B Uncertainty Evaluation Measurement Examples (8)

Introduction

This specification based JJF 1071-2010 "National Calibration Specifications writing rules" establishment. Reference GB/T 16540-1996 "acoustic characterization of ultrasonic fields in the frequency range 0.5 ~ 15MHz and measuring hydrophone Is Law ", hydrophone positioning system with reference to the technical requirements of the IEC 62127-1" Ultrasound - hydrophone highest first portion Frequency to 40MHz medical ultrasound characteristics and measurement "(Ultrasonics-Hydrophones-Part 1. Measurementandcharacterizationofmedicalultrasonicfieldsupto40MHz), the maximum time Average sound power error reference to IEC 62127-2 "Ultrasound - hydrophone second part of the highest frequency to 40MHz Ultrasonic Field Calibration "(Ultrasonics-Hydrophones-Part 2. Calibrationforultrasonicfieldsupto 40MHz) concerning medical ultrasonic field measurement system requirements. This specification is the first release. Medical ultrasonic field measurement system calibration specifications

1 Scope

This instruction applies to calibrate medical ultrasonic field measurement system. 2. References This specification references the following documents. JJF 1001-2011 common measurement terms and definitions JJF 1034-2005 acoustic measurement terminology and definitions JJG1070-2011 0.5MHz ~ 5MHz standard hydrophone JJF 1189-2008 length measuring instrument calibration specification GB 3102.7-1993 Quantities and units of acoustics GB/T 16540-1996 acoustic characterization of ultrasonic fields in the frequency range 0.5 ~ 15MHz and its measurement Hydrophone law IEC 62127-1 ultrasound - the first part of hydrophones to measure the maximum frequency of 40MHz of medical ultrasonic fields And features (Ultrasonics-Hydrophones-Part 1. Measurementandcharacterizationofmedical ultrasonicfieldsupto40MHz) IEC 62127-2 ultrasound - the second part of the hydrophone to the highest frequency of 40MHz ultrasound field calibration (Ul- trasonics-Hydrophones-Part 2. Calibrationforultrasonicfieldsupto40MHz) 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

The amount of this specification, the terms and definitions relating to the JJF 1001-2011, GB 3102.7-1993 prescribed And units and the following terms and definitions. 3.1 The maximum time-averaged sound power (maximum power) maximumtemporal-averagetotaltransmitted power Refers to a specific area of time-averaged acoustic power of the scanning system is the total power of all the acoustic pulse.

4 Overview

Medical ultrasonic field measurement system is mainly used hydrophone measurement medical ultrasonic field characteristics of the device. Medical ultrasonic Field measurement system consists of three-dimensional scanning positioning system, sink, hydrophones, hydrophone amplifier (if any) to And sampling and data processing parts. Sink a large enough space to meet the ultrasound transducer relative movement of the transducer and hydrophone between, on the move, Water ...