Measuring Principle; Equipment - sauter TU-US Instruction Manual

1.3 Measuring principle

The Ultrasonic Digital Material Thickness Gauge measures the thickness of a part or
structure by accurately measuring the time taken for a short ultrasonic pulse to pass
through the thickness of a material controlled by a probe, then reflected from the back
or inner surface and returned to the probe.
This measured two-way transmission time is divided by 2 (representing the outward
and return journey), and then multiplied by the sound velocity of the corresponding
material. The result is expressed by the following formula:

v t
=
H
2
H = Material thickness of the test object
v = sound velocity of the corresponding material
t = the measured transit time for the sound

1.4 Equipment

Scope of delivery
Accessories sold
separately
TU_US-BA-e-2020
No. Designation
1 Main body
2 Measuring probe
3 Coupling means
4 Transport case
5 Instruction manual
6 Screwdriver
7 Alkaline battery
8 Measuring probe: ATU-
US01
9 Measuring probe: ATU-
US02
10 Measuring probe: ATB-
US02
13 Data Pro for material
thickness gauge
14 Communication cable
Quantit Note
y
1
1 ATU-US10 90°
1
1
1
1
2 size AA
See table p.10
1 for PC
1
5