Ultrasonic flaw detector verification device uses pulse modulation method to calibrate the main performance of ultrasonic flaw detector, so as to avoid the influence of probe on verification/calibration data.
The system fully meets the requirements of JJG 746-2004 Verification Regulations for Ultrasonic Fault-Detector, and can be used as a metrological standard device to calibrate/calibrate the main performance of Ultrasonic Fault-Detector, such as: horizontal linearity, vertical linearity, dynamic range, attenuator error, operational sensitivity, etc.
[Technical indicators]
· Frequency range: 0.01MHz ~ 20MHz
· Frequency stability: 5×10-6
· Frequency accuracy: 5×10-6
· Signal amplitude range :(-55 ~ +23) dB
· Attenuation range :(0 ~ 101) dB
· Attenuator grading form: 20dB×2;10 db * 5;1 db x 10;0.1 dB x 10;
· Attenuator error :(0.5%*A±0.02dB), where A is the attenuation amount
· Number of sinusoidal waves included in burst sound: 1 ~ 100 can be adjusted, and the sinusoidal wave distortion is no more than 0.5%
· Sound range :(50 ~ 6000) mm
· Sound velocity range :(1000 ~ 9999) m/s
· Signal output mode: continuous wave, burst sound
Ultrasonic Flaw Detector Verification Device 2020-12-3 This article was read 7348 Times
