超音波学.物理疗法系统.频率范围0.5MHz～5MHz的现场规范和测量方法

[中文适用范围]： 本国际标准适用于设计用于物理治疗的超声波设备，该设备由超声波换能器组成，产生频率范围为 0.5 MHz 至 5 MHz 的连续或准连续波超声波能量。该标准仅涉及每个治疗头采用单平面非聚焦圆形换能器、产生垂直于治疗头表面的静态波束的超声波物理治疗设备。本标准规定： – 基于参考测试方法的超声理疗设备输出的测量和表征方法； – 超声波理疗设备制造商根据参考测试方法规定的特性； – 超声波理疗设备产生的超声波场的安全指南； – 基于常规测试方法的超声理疗设备输出的测量和表征方法； – 基于常规测试方法的超声理疗设备输出方面的验收标准。超声理疗设备的治疗价值及使用方法不属于本标准范围。 [外文原描述]： Is applicable to ultrasonic equipment designed for physiotherapy consisting of an ultrasonic transducer generating continuous or quasi-continuous wave ultrasonic energy in the frequency range 0,5 MHz to 5 MHz. This standard only relates to ultrasonic physiotherapy equipment employing a single plane unfocused circular transducer per treatment head, producing static beams perpendicular to the face of the treatment head. This standard specifies: - methods of measurement and characterization of the output of ultrasonic physiotherapy equipment based on reference testing methods; - characteristics to be specified by manufacturers of ultrasonic physiotherapy equipment based on reference testing methods; - guidelines for safety of the ultrasonic field generated by ultrasonic physiotherapy equipment; - methods of measurement and characterization of the output of ultrasonic physiotherapy equipment based on routine testing methods; - acceptance criteria for aspects of the output of ultrasonic physiotherapy equipment based on routine testing methods. Therapeutic value and methods of use of ultrasonic physiotherapy equipment are not covered by the scope of this standard. This second edition cancels and replaces the first edition published in 1996 and constitutes a technical revision. This second edition is a result of maintenance on this standard and the referenced standards IEC 61161 (2006) and IEC 62127-1. A relatively large technical change is the determination of the effective radiating area. This is now no longer based on the measurement of four areas but only on one. This change was needed to improve the accuracy of the determination of this parameter for small transducers. Be aware that this change may alter the value obtained for this and related parameters.