Any one have the characteristic of the transducer Panametric A3441
I am looking for the characteristics of the focal type immersion transducers Panametric A3441 500kHz.
Does any one has the information about frequency range, resolution, sensitivity, angle of divergence and the near -field distance of this transducer?
Truong Q., H.
|Tom Nelligan |
retired, USA, Joined Nov 1998, 390
Re: Any one have the characteristic of the transducer Panametric A3441 The A3441 is a custom transducer that we have built in limited quantities to meet requested customer specifications, not a catalog item. It would normally be unfocused, unless yours is further customized with a focused lens. It is a 500 KHz narrowband transducer with a design bandwidth of 60%.
As with any transducer, resolution and sensitivity will be specific to a given test (instrument, pulser/receiver setup, and test material) and thus highly variable, however by design these are high sensitivity, low frequency transducers with relatively slow ringdown.
Beam spread angle for this or any transducer is dependent on the velocity of the test medium, but for an unfocused A3441 in water it would be 4.5 degrees for the half-angle (beam centerline to outer ray at -6dB) or 9 degrees for the full included angle. Near field length would be approximately 30 mm in water, and shorter of course in materials with higher sound velocities.
If you're not familiar with the formulas for calculating these parametersin other materials, see the tech note section of the Panametrics-NDt transducer catalog (link below).
----------- Start Original Message -----------
: I am looking for the characteristics of the focal type immersion transducers Panametric A3441 500kHz.
: Does any one has the information about frequency range, resolution, sensitivity, angle of divergence and the near -field distance of this transducer?
: Truong Q., H.
------------ End Original Message ------------
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