Piezoelectric Force Sensor
Kistler North America
Aug 13, 2012
Piezoelectric Force SensorThe Type 9211BE miniature quartz force sensor with single-wire technology is designed for high-reliability dynamic and quasi-static mold cavity measurements of up to 3,000 bar (43,511 psi), over a range of 0 to 2,500 N, in support of demanding plastics injection molding operations. With a total diameter measuring just six millimeters, the compact Type 9211BE operates on the piezoelectric principle, whereby the high-resolution force sensor charge signal output is converted within the charge amplifier or monitoring unit into a proportional output voltage of up to 10V, which is largely dependent upon sensor cable length. Piezoelectric sensing elements are housed within a rugged welded case with replaceable cable.
The Type 9211BE offers the benefits of Kistlerís own single-wire technology, allowing for the shortening of an individual cable to required length, with connection via the proven cut-and-grip technique. Single-wire cables transmit the necessary electrical charge with required shielding provided by the injection mold itself, with cables and connectors completely integrated into the mold. Single-wire cabling is also fully field-repairable and exchangeable and may be cut to desired lengths. Cables can be fitted directly into mold cavity bores to minimize milling, protecting bores from potential mechanical damage. They may also be connected to Kistler multichannel charge amplifiers for cost-effective multi-cavity mold preparation.
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