Explanation of terms of ultrasonic flaw detector All of our Deluxe Beauty & Massage Equipment are handmade with the best leather material and manufactured by the newest technological machinery, to achieve the utmost level of comfort for customers and an extended period of use for tattoo artists. Deluxe Beauty & Massage Equipment Deluxe Beauty Equipment,Deluxe Massage Equipment,Beauty Equipment,Massage Equipment Kimya Beauty Salon Manufacturer , https://www.jmkimya.com
Explanation of terms of ultrasonic flaw detector
1. Pulse amplitude: the voltage amplitude of the pulse signal. When the A-type display is used, it is usually the height from the time base line to the peak of the pulse peak.
2. Pulse length: pulse duration expressed in time or period values.
3. Decibels: The logarithmic representation of the ratio of two amplitudes or intensities.
4. Acoustic impedance: The ratio of the sound pressure of a sound wave to the particle vibration velocity, usually expressed by the product of the density p of the medium and the velocity c.
5. Acoustic impedance matching: coupling between two media with equivalent acoustic impedance.
6. Attenuation: When ultrasonic waves propagate in the medium, as the propagation distance increases, the sound pressure gradually weakens.
7. Total attenuation: any shape of ultrasonic beam, the sound pressure of its specific waveform increases with the propagation distance, due to the attenuation caused by scattering, absorption and sound beam diffusion.
8. Attenuation coefficient: when the ultrasonic wave propagates in the medium, the loss of sound pressure within a unit distance due to material scattering is usually expressed in decibels per centimeter.
9. Defects: The size, shape, orientation, location or nature will cause damage to the effective use of the workpiece, or discontinuities that do not meet the requirements of the prescribed acceptance standards.
10. Type A display: An information representation method in which the horizontal baseline (X axis) represents distance or time, and the deflection perpendicular to the baseline (Y axis) represents amplitude.
11. Transmit pulse: the electrical pulse applied to the transducer in order to generate ultrasonic waves.
12. Time Baseline: A horizontal scanning line indicating time or distance in the A-type display screen.
13. Scanning: The electron beam moves across the fluorescent screen of the flaw detector in the same pattern.
14. Scanning range: the maximum sound path that can be displayed on the baseline when the screen is fluorescent.
15. Scanning speed: the ratio of the horizontal axis on the fluorescent screen to the corresponding sound path.
16. Delayed scanning: In the A-type or B-type display, the scanning method that makes the start part of the time baseline not displayed.
17. Horizontal linearity: the degree to which the signal displayed on the time or distance axis of the screen of the ultrasonic flaw detector is directly proportional to the signal input to the receiver (through a corrected time generator or multiple echoes from a plate of known thickness).
18. Vertical linearity: the degree to which the signal displayed on the time or distance axis of the screen of the ultrasonic flaw detector is directly proportional to the signal amplitude of the input receiver.
19. Dynamic range: The ratio of the maximum and minimum reflection area wave height that can be resolved on the fluorescent screen of the ultrasonic flaw detector when the gain adjustment is unchanged. Usually expressed in decibels.
20. Pulse repetition frequency: In order to generate ultrasonic waves, the number of pulses of the probe chip excited by the pulse generator per second.
To be continued.