Table of Contents
Advertisement
Model Freq
Dia.
MHZ
mm
ATU-
2
22
US01
ATU-
5
10
US09
ATU-
5
10
US10
/90°
ATU-
7
6
US02
ATB-
5
14
US02
4.2 Conditions and preparations for surfaces
For any kind of ultrasonic measurement, the condition and roughness of the surface to
be measured is of utmost importance. Rough, uneven surfaces can
restrict the penetration of the ultrasonic waves through the material, resulting in
unstable, incorrect measurement results
The surface to be measured should be clean and free of any substances, rust or
verdigris. If this is the case, the measuring probe cannot be clean
can be placed on the surface. A wire brush or scraper is often helpful to clean the
surface. In extreme cases, belt sanders or the like can be used. However, it is important
to avoid gouging the surface, which prevents a clean placement of the probe.
Extremely rough surfaces like cast iron are very difficult to measure. These types of
surfaces behave as if light were shining on frosted glass; the beam is scattered and
sent in all directions.
In addition, rough surfaces contribute to considerable wear and tear of the probe,
especially in situations where it is "scrubbed" over the surface.
They should therefore be checked at a certain distance, especially at the first signs of
unevenness on the contact surface. If it is worn down more on one side than the other,
the sound waves can no longer penetrate vertically through the material surface of the
test object. In this case, small irregularities in the material are difficult to measure
because the sound beam is no longer exactly below the measuring probe.
5. How it works
5.1 Switching on and off
The unit is switched on and off with the on/off key. When the unit is switched on for the
very first time, the model type, manufacturer information and serial number are
10
Measuring range
3.0mm～300.0mm(Stahl
）
40mm (cast iron)
1.2mm～230.0mm (steel) Φ20mm×3.0mm Normal
1.2mm～230.0mm(Stahl
）
0.75mm～80.0mm
(Stahl）
3～200mm
(steel)
Lower limit
Description
20
For thick, highly
damping
highly scattering
materials
measurement
Φ20mm×3.0mm Normal
measurement
Φ15mm×2.0mm For
slightly bent tube
material
30
High temperature
measurement
gen.(< 300°C)
TU_US-BA-e-2020
or
thin
or
Advertisement
Table of Contents
