UT chapter 3 Flashcards
ultrasonic testing systems are referred to or being one of three types:
A scan
B scan
C scan
typical ultrasonic instruments are designed to produce outgoing _____ and to amplify returning ______ from test materials
electronic pulses, echoes
In an A-scan system the horizontal base line on the screen indicates ______ and the vertical deflection shows signal ________
time, amplitude
B-scan displays are typically used in applications such as?
corrosion monitoring and laminating detection.
B-scan representation produces a ____ view of _______ cross-sectional plane through the test object.
2D, reflectors
C-scan displays ultrasonic testing data in the form of a?
plane view
In a C-scan display, the received signals are converted to variations in?
color or a gray scale
The images of a C-scan show the ______ and ______ of the reflections
shapes, plane position
Pulse-echo power supply is served from ____ ______ or, as in the case of portable, from a _____ contained within the unit
line supply , battery
a transducer is a devise that converts______ into on form or another
energy
what are two other names for a transducer?
Element and crystal
The pulser is the source of ________________ of electrical energy that are applied by the transducer
short, high energy bursts
The timer is also referred to as the:
rate generator or clock
what is the purpose of the gain control?
they connect to the amplifier and adjust the amount of amplification that incoming signals from the transducer receive before the screen display is made
what is the purpose of the probe mode control switch?
the switch determine if the instrument will drive and display the activity of one transducer or two
