CST-7 ultrasonic flaw detector

I. Introduction CST-7 ultrasonic flaw detector in the CST-3 type and CST-4 type on the basis of opinions from customers, after several improvements and increased a small, general-purpose portable A-mode pulse reflection ultrasonic flaw detector. It has been widely applied to various industries of boilers, pressure vessels, aviation, aerospace, electric power, petroleum, chemical, pipelines, military, marine, automotive, metallurgy, steel, railways and universities. As the metal material and manufacture of ultrasonic testing (such as forging, casting, welding parts, etc.) used. Second, the instrument main technical indicators and Specifications 1, the working frequency: 0.5-16MHz 2, Operating mode: single or dual probe transmitting and receiving probe pitch-catch. 3, sensitivity margin: with 2.5P20Y probe found DB-PZ20-2 test block φ2 flat bottom hole detection sensitivity margin ≥50dB. 4, level linearity error: <1% 5, vertical linearity error: <3% 6, dynamic range: ≥30dB 7, electrical noise level: ≤10% 8, blind (blind area): ≤10mm 9, far-field resolution Rate: X≥30 db 10, attenuator: total attenuation: 108dB (10dB × 5,6dB × 8,1dB × 10) attenuation error over the operating frequency range: 12dB ± 0.5dB 11, probing depth range: 0.5-300cm (steel longitudinal wave) [depth Coarse] knob points 10cm, 50cm, 300cm third gear, the stall overwrite each other. 12, repetition frequency: (1.5KHz, 750Hz, 375Hz) ± 155 13, transmit pulse amplitude: 650V 14, police work: into the wave alarm, loss of wave alarm. A, alarm gate starting position adjustment range: 1.0cm-300cm B, alarm gate width adjustment range: 0.4cm-500cm C, alarm brake values: the oscilloscope screen display width 5-100% adjusted 15 Power supply: AC22V ± 15% 50Hz; DC7.6V ± 10% 16, the oscilloscope screen display size: in the scale 75 × 65 (mm) 17, volume and weight: Volume: 235 × 135 × 335 (mm); Weight Approx: 5Kg