(J05;ULTRASONIC5) Transducers -Low frequency for testing concrete and other course grained materials

 (Made in USA)

(FR-J/U311)             BETON ve DİĞER KABA DANELİ MALZEMELER İÇİN DÜŞÜK FREKANSLI ULTRASONİK TRANSDUCER'ler

DÜŞÜK FREKANSLI TRANSDUCERLERİN GENİŞ ALANI, BETON ve DİĞER KALIN DANELİ MALZEMELERİN ULTRASONİK TESTİ İÇİN UYGUN TRANSDUCERLERDİR.

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Ultrasonic Transducers
Low frequency for testing concrete and other course grained materials

The widest range of low frequency transducers available for ultrasonic testing of concrete and other coarse-grained materials.

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Low frequency transducers for ultrasonic testing of concrete and other course grained materials.

Shear Wave transducers (pictured above) are used in combination with compressional wave transducers to calculate Poisson's Ratio. The line of general-purpose compressional wave transducers feature robust PZT elements in stainless steel.

Features & Benefits:

Shear Wave

V-C-7283 180 KHz:
Length 2.37 ins. (60 mm),
Diameter 1.98 ins. (51 mm)
Weight .92 lbs. (416 gr.).
Used in combination with compressional wave transducers, to calculate the Poisson’s ratio which in turn will facilitate a more accurate moduli.

   Exponential

V-C-4911 50 KHz Transmitter: (Used without Pre-Amp)
Length 4.765 ins. (121 mm)
Diameter 1.49 ins. (38 mm)
Weight .94 lbs. (425 gr.)

V-C-4905 50 KHz Receiver: (Used with Pre-Amp)
Length 4.765 ins. (121 mm)
Diameter 1.49 ins. (38 mm)
Weight 1.3 lbs. (590 gr.)

Eliminates the use of couplants on rough, uneven surfaces.

UNDERWATER;

V-C-4876 54 KHz Transmitter:
Length 5.87 ins. (149 mm)
Diameter 2.25 ins.
(57 mm) Weight 5 lbs. (2268 gr.)

V-C-4877 54 KHz Receiver:
Length 6.87 ins. (175 mm)
Diameter 2.25 ins. (57 mm)
Weight 6 lbs. (2722 gr.)
Each supplied with 50-ft. (16 m) underwater cable

(V-C-4969-050) and connectors.
V-C-4969-xxx additional cable per foot (32 cm).

Rolling
V-C-7219 84 KHz:
Width 2.21 ins. (56 mm)
Diameter 2.75 ins.
(70 mm)
Weight 1.64 lbs. (743 gr.)

For use on large smooth surfaces resulting in faster and more complete testing; maximum speed 20 ft/sec. (6 mm/sec.)

Frequencies

Accessories
V-C-4140 Preamplifier:
For very coarse material and long path lengths with direct amplification, x 4 and x 7 using a Switch.

V-C-4874-GSO
Clean in place – For architectural concrete; can be cleaned

V-24145-000
Rubber complant
(10pc-80mmx75mm)

V-24145-001
Rubber complant
(50pc-25mm Diameter)

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What Types of Stress Waves are Introduced into a Structure by Impact?

If transient stress waves are introduced into a concrete structure by mechanical impact at a point on the surface, as shown in Fig. 1, the stress waves include a dilatational (P-) wave and a distortional (S-) wave, which propagate into the structure along hemispherical
wavefronts, and a Rayleigh (R-) wave, which propagates along the surface of the structure. Among the stress waves, the P-wave propagates fastest and the R-wave propagates slowest. The S-wave propagates slightly faster than the R-wave. In an infinite isotropic elastic solid, the P-wave speed, Cp, and the S-wave speed, Cs, are related to the Young’s modulus of elasticity, E, Poisson’s ratio, v, and the density, p. For a Poisson’s ratio of 0.2, the R-wave speed is 92% of the S-wave speed and 56% of the P-wave speed. The motion of a particle disturbed by the P-wave is parallel to the direction of wave propagation while the particle motion disturbed by the S-wave is
perpendicular to the wave propagation direction as schematically illustrated in Fig. 1.

The particle motion disturbed by the R-wave is elliptical. The vertical disturbance of a particle on the impact surface caused by the R-wave arrival is much larger than that caused by the S-wave and P-wave arrivals.

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( FORE CO. reserves the right to alter specifications to equipments to any time. )