Product Description
Accessories
Data Sheet

Ultrasonic Thickness Gauge Transducers

Elcometer has a wide range of transducers available for use with the Elcometer 205, 206 & 208 range of Ultrasonic Thickness Gauges.

When selecting a transducer, it is important to choose one which will meet the application, taking the following into consideration:

  • The type of material to be tested
  • The design of the transducer probe
  • The measurement range
  • Whether the shape of the substrate is flat or curved or hard to reach
  • A range of frequencies and sizes are available to meet specific needs
  • Straight and right angle transducers available as potted or microdot

Definitions:

  • Microdot Transducer: The cable can be unplugged from the transducer and easily replaced on site should it become damaged
  • Potted Transducer: Unlike the microdot transducers, the cables are hard wired into the transducer head
  • Exxon Specification: The gauge and transducer combination must hit specified standards without missing the first cycle
  • High Temperature Transducers: temperature up to 340°C (650°F)

 

Speed of Sound Through Materials

Elcometer Ultrasonic Thickness Gauges can be calibrated by the user for the appropriate material in two ways:

  • Set the calibration to the thickness of the known standard of the same material
  • Set the frequency calibration to the appropriate value using the velocity chart below:

 

Material
km/sec
in/msec
Material
km/sec
in/msec
Air 0.33 0.013 Neoprene 1.60 0.063
Aluminium (2024-T4) 6.38 0.251 Nickel 5.64 0.222
Beryllium 12.88 0.507 Nylon 2.69 0.106
Boron Carbide 10.92 0.430 Platinum 3.69 0.156
Brass 4.39 0.173 Plexiglass 2.69 0.106
Cadmium 2.77 0.109 Polystyrene 2.34 0.092
Copper 4.65 0.183 Polyurethane 1.78 0.070
Glass (Plate) 5.77 0.227 PVC 2.39 0.094
Glycerine 1.93 0.076 Quartz 5.74 0.226
Gold 3.25 0.128 Silver 3.61 0.142
Inconel 5.82 0.229 Steel (4340) 5.84 0.230
Iron 5.89 0.232 Steel (303 Stainless) 5.66 0.223
Iron, Cast 4.55 0.179 Teflon 1.52 0.060
Lead 2.16 0.085 Tin 3.33 0.131
Magnesium 5.84 0.230 Titanium 6.10 0.240
Mercury 1.45 0.057 Tungsten 5.18 0.204
Molybdenum 6.25 0.246 Uranium 3.38 0.133
Monel 5.36 0.211 Water 1.47 0.058
Motor Oil (SAE 30) 1.75 0.069 Zinc 4.32 0.170
Microdot Ultrasonic Transducers
Potted Ultrasonic Transducers

Accessories

T92016871 Graphite Delay Line (for PLAS mode)
T92015701 Ultrasonic Couplant – 120ml (4fl oz) Bottle

T92015701-5

Ultrasonic Couplant; 120ml (4fl oz), Pack of 5 Bottles

T92024034-7

Ultrasonic Couplant – 300ml (10fl oz) Bottle

T92024034-8

Ultrasonic Couplant – 500ml (17fl oz) Bottle

T92024034-3

Ultrasonic Couplant – 3.8l (1 US Gallon) Bottle

T92024034-9 High Temperature Ultrasonic Couplant; 398°C (750°F) – 60ml (2fl oz)

T92024034-10

High Temperature Couplant; 60ml (2fl oz), Pack of 2

T9205243- Test Wedge: 2 - 25mm (0.07 - 0.98”) in 6 Steps
T9205270- Test Wedge: 30 - 100mm (1.18 - 3.93”) in 8 Steps