Số hiệu tiêu chuẩn
FprEN 61689
Tên tiêu chuẩn
IEC 61689, Ed. 3: Ultrasonics - Physiotherapy systems - Field specifications and methods of measurement in the frequency range 0,5 MHz to 5 MHz
Ngày phát hành
2011-09-00
Tiêu chuẩn tương đương
C97-909PR, IDT * IEC 87/484/CDV (2011-09), IDT * OEVE/OENORM EN 61689 (2011-11-01), IDT
Từ khóa
Acoustics * Definitions * Electrical engineering * Measurement * Measuring techniques * Medical equipment * Medical sciences * Performance in service * Physiotherapy * Ratings * Sound pressure * Testing * Therapy equipment * Ultrasonic devices * Ultrasonic engineering * Ultrasonic frequencies * Ultrasonics