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Cygnus Twin Crystal Ultrasonic Probes

Twin crystal probes are used with the Cygnus gauges in Echo-Echo or Single Echo modes. These types of probes are particularly suited to measuring on heavily corroded metals.

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Description

To compliment our ultrasonic thickness gauges we offer a range of ultrasonic probes. The performance of any ultrasonic thickness gauge relies heavily on the probe and its suitability to the material being measured. Therefore, selecting the right probe is vital.

Twin crystal probes are used with our gauges in Echo-Echo or Single Echo modes. These types of probes are particularly suited to measuring on heavily corroded metals.

All Cygnus’ probes are made form stainless steel 304 and have a hard wear face which will wear down as the probe is used.

In Echo-Echo mode, up to 1 mm (0.040 inch) of surface coating can be read through and ignored. Single-Echo mode should only be used when there are no surface coatings.

Probe
Type
Frequency
Crystal Ø
Tip
Size
Range in Steel
(Single-Echo)
Range in Steel
(Echo-Echo)
Typical Applications Element Connectors Weight Temp.
Range
T2C 2 MHz
12 mm
(0.5 inch)
17 mm
(0.67 inch)
2.5 – 250 mm
(0.099 – 9.84 inch)
5 – 50 mm
(0.20 – 2 inch)
Attenuative materials Composite Twin Lemo 00 56 g
(1.98 oz)
-10°C to 70°C
(14°F to 140°F)
T5B 5 MHz
8 mm
(0.32 inch)
13 mm
(0.5 inch)
1.5 – 200 mm
(0.059 – 7.90 inch)
4 – 50 mm
(0.12 – 2 inch)
High power composite probe
Surfaces with heavily corroded and pitted front/back walls
Composite Twin Lemo 00 61 g
(2.14 oz)
-10°C to 70°C
(14°F to 140°F)
T5A 5 MHz
6.3 mm
(0.25 inch)
10 mm
(0.39 inch)
1 – 150 mm
(0.059 – 7.90 inch)
3 – 50 mm
(0.12 – 2 inch)
General purpose
Economical probe
Monolithic Integral cable to
Lemo 00
81.7 g
(2.89 oz)
-10°C to 70°C
(14°F to 140°F)
T7A 7.5 MHz
5 mm
(0.2 inch)
7.6 mm
(0.3 inch)
0.8 – 50 mm
(0.031 – 2 inch)
3 – 25 mm
(0.12 – 1 inch)
Small diameter pipes
Thin, corroded plate
Monolithic  Integral cable to
Lemo 00
68 g
(2.39 oz)
-10°C to 70°C
(14°F to 140°F)

 

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