S.I. Kuznetsov FSUE “VNIIFTRI”, Mendeleevo, Moscow region, Russiasergantex@vniiftri.ru Al’manac of Modern Metrology № 3 (31) 2022, pages 31–44 Abstract. As part of the work to improve the state primary standard of an ultrasonic power unit in water GET 169 a reference meter of ultrasound power in water EIMU-3 was developed and put into operation, using … Continue reading Reference power meter for ultrasound beam in water EIMU-3