New Piezoelectric Charge Constant (d₃₃ ) Tester

Defects in a piezoelectric ceramic, caused by inhomogeneous formulation, processing inconsistencies, careless handling, or other problems, are reflected by a low piezoelectric charge constant (d₃₃ ) value. Consequently, a fast, accurate, easy to use, and economical apparatus for determining d₃₃ values can be very useful for ensuring the quality and consistency of piezoelectric ceramic elements.

Our wide-range d₃₃ tester measures d₃₃ values from 1 - 200 pC/N or 10 - 2000 pC/N, at high resolution, with a high degree of reliability (±2% / ±5% of d₃₃ value, depending on the instrument setting and the d₃₃ value). It accommodates piezo elements of varied size and shape, and d₃₃ values for single crystals can be measured in various directions. Direct display readouts for d₃₃ values or polarity eliminate the need for additional equipment. Special technical expertise is needed  - the instrument is easy to learn to use and easy to operate. The wide-range d₃₃ tester is powered by 110/220 VAC / 50/60 Hz input.

Detailed information about the wide-range d₃₃ testing unit

The addition of the wide-range d₃₃ testing unit to our product line offers researchers and production personnel a choice. The Model 8000 d₃₃ tester we have offered for several years is a low cost / low maintenance unit that provides fast, accurate measurements of d₃₃ values from 0 to ±1200 x 10^-12 m/V. It accommodates ceramic elements of varied size and shape, and allows rapid testing of multiple units. The only additional equipment needed to use the Model 8000 d₃₃ tester, a digital AC voltmeter and a coaxial cable with BNC connectors, are readily available from APCI or other sources. To determine the polarity of ceramic elements, connect the Model 8000 d₃₃ tester to an oscilloscope. Power requirements: 120 VAC / 60 Hz.

Either of these d₃₃ testing units offers a fast, easy, reliable way to ensure the quality of incoming components and/or optimize and monitor production processes.