PCB Test & Measurement Seite 82

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PCB PIEZOTRONICS INC 716 684 0001 Fax 716 685 3886 For Additional Specification Information Visit www pcb com 80 Highlights Measure 3 Orthogonal Forces Simultaneously Stainless Steel Construction Hermeticaly Sealed Choice of ICP or Charge Versions Three component quartz force ring sensors are capable of simultaneously measuring dynamic force in three orthogonal directions X Y and Z They contain three sets of quartz plates that are stacked in a preloaded arrangement Each set responds to the vector component of an applied force acting along its sensitive axis 3 component ring force sensors must be statically pre loaded for optimum performance Pre loading provides the sensing elements with the compressive loading required to allow the proper transmission of shear forces Versions are available with ranges up to 10k lb 45 kN in the z axis perpendicular to the top surface and up to 4000 lb 18 kN in the x and y shear axes Both ICP and charge output styles are available Three component force links eliminate the preload requirement of 3 component quartz force ring sensors and offers a convenient 4 screw hole mounting plate on each side end the sensor Quartz 3 component force links are constructed by installing a 3 component force ring sensor under pre load between two mounting plates An elastic beryllium copper stud holds this stainless steel assembly together The use of this elastic stud permits the applied force to be sensed by the crystals with a minimal amount of shunted force The stud also provides the necessary normal force and thus friction required to transmit shear forces in the x and y axes Since 3 component force links are factory pre loaded they may be used directly for measurements of compression and tension in the z axis a positive and negative forces in the x and y axes Versions are available with ranges up to 10k lb 45 kN in the z axis perpendicular to the top surface and up to 4000 lb 18 kN in the x and y axes Both ICP and charge output styles are available ICP designs utilize built in microelectronic circuitry that provides a low impedance voltage output via a multipin connector This arrangement offers system simplicity by requiring only a single multi conductor sensor cable The low impedance voltage signal makes this sensor ideal for use in harsh industrial environments Charge output 3 component force sensors operate with in line charge converters or conventional laboratory style charge amplifiers The use of laboratory style charge amplifiers permits each channel to be independently ranged by the user to maximize signal to noise ratio Charge output styles are recommended for higher temperature applications and can also be used for quasi static measurements with long discharge time constant charge amplifiers 3 Component Quartz Force Rings and Links 260 261 Series 5 T Mcatalog 2011 Seite 65 82 A4 F G500 21 04 11 15 37 Seite 80


Vorschau PCB Test & Measurement Seite 82