Pulse Velocity Transducers Proceq offers an extensive range of transducers providing highest accuracy and a proven field track record. The selection of the correct transducer is dependent on the aggregate/grain size and the dimensions of the test object. Bandwidth and aperture size Test Object Limitations Applications Part # Wavelength* Maximum grain size […]
Pulse Velocity Transducers
Proceq offers an extensive range of transducers providing highest accuracy and a proven field track record. The selection of the correct transducer is dependent on the aggregate/grain size and the dimensions of the test object.
Bandwidth and aperture size | Test Object Limitations | Applications | |||
Part # | Wavelength* | Maximum grain size |
Minimum lateral dimension |
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P-wave Transducers | |||||
24 kHz Ø50 mm x 95 mm |
G-896-325 40 026S | 154 mm | ≈ 77 mm | 154 mm | »» Concrete: Very coarse aggregate and large objects (several meters) |
54 kHz Ø50 mm x 46 mm |
G-896-325 40 131S | 68.5 mm | ≈ 34 mm | 69 mm | »» Concrete »» Wood »» Rock |
150 kHz Ø28 mm x 46 mm |
G-896-325 40 141S | 24.7 mm | ≈ 12 mm | 25 mm | »» Fine grained material »» Refractory bricks »» Rock (NX cores) |
250 kHz Ø28 mm x 46 mm |
G-896-325 40 177S | 14.8 mm | ≈ 7 mm | 15 mm | »» Fine grained material »» Refractory bricks »» Rock »» Use on small samples |
500 kHz Ø57 mm x 32 mm |
G-896-325 40 175S | 7.4 mm | ≈ 3 mm | 7 mm | »» Fine grained material »» Refractory bricks »» Rock »» Use on small samples |
54 kHz Ø50 mm x 100 mm |
G-896-325 40 176 | 68.5 mm | ≈ 34 mm | 69 mm | »» Concrete: Rough and rounded surfaces (no couplant required) »» Wood »» Rock (heritage sites) |
S-wave Transducer | |||||
250 kHz Ø41 mm x 32 mm |
G-896-327 20 002 | 10 mm | ≈ 5 mm | Greater than the thickness of the object. |
»» Used for determination of elastic modulus »» Concrete, wood, rock (small samples only) »» Requires special shear wave couplant |
*A pulse velocity of 3700 m/s (longitudinal wave) and 2500 m/s (shear wave) have been used for the computation of the
wavelengths.