SHOCK & VIBRATION

Each Quartzdyne transducer design has been qualified by environmental testing, including impact, random vibration, sine sweep vibration, and thermal cycling. Quartdyne's internal standards for these tests are found in a technote. Each transducer is not individually tested due to the risk of latent damage. But each design is periodically tested to re-certify the design.

The growing use of Quartzdyne transducers in logging-while-drilling has prompted laboratory vibration and shock testing at extreme levels to determine potential "weak links" in the transducer design. These tests have led to significant changes in methods for fabricating and installing the transducers' temperature and reference crystals. The improvement in shock resistance was completed in 2000.