Acoustic Logging Tool Utilizing Fundamental Resonance

An acoustic logging tool, comprising:

• a support structure;
• and
• a dual acoustic transducer comprising:
• a substrate comprising a first side, a second side, a first end, a second end, and a mid-portion between the first end and the second end, wherein the first end, second end, and mid-portion are fixed to the support structure;
• a first piezoelectric element coupled to the first side of the substrate between the first end and the mid-portion;
• a second piezoelectric element coupled to the second side of the substrate between the first end and the mid-portion;
• a third piezoelectric element coupled to the first side of the substrate between the mid-portion and the second end;
• and
• a fourth piezoelectric element coupled to the second side of the substrate between the mid-portion and the second end.

A method of performing acoustic logging, comprising:

• energizing a first acoustic transducer;
• energizing a second acoustic transducer, wherein each of the first and second acoustic transducers comprise a substrate, a first piezoelectric element coupled to a first side of the substrate, and a second piezoelectric element coupled to a second side of the substrate;
• emitting a first acoustic signal from the first acoustic transducer;
• and
• emitting a second acoustic signal from the second acoustic transducer in the same direction as the first acoustic signal.