PCB Test & Measurement Seite 31

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For Additional Specification Information Visit www pcb com PCB PIEZOTRONICS INC 716 684 0001 Fax 716 685 3886 29 MEMS DC Response Accelerometers When analysis of very low frequency motion or constant acceleration is required MEMS accelerometers are necessary Unlike piezoelectric accelerometers these sensors respond to 0 Hz and are therefore often referred to as DC response sensors PCB Series 3741 DC response accelerometers are offered in a variety of full scale ranges from 2 to 200 g The units feature silicon MEMS sensing elements for uniform repeatable performance Gas damping mechanical over range stops and a low profile hard anodized aluminum housing are utilized for added durability Electrically the units offer a differential output signal for common mode noise rejection PCB Series 3711 single axis and 3713 triaxial DC response accelerometers are designed to measure low frequency vibration and motion and are offered in full scale ranges from 2 to 200 g to accommodate a variety of requirements The units feature gas damped silicon MEMS sensing elements that provide performance while hermetically sealed titanium housings provide protection from harsh contaminants These units are inherently insensitive to base strain and transverse acceleration effects and offer high frequency overload protection Electrically the units offer a single ended output signal for each channel with power and ground leads Ph ot os C ou rte sy o f P ur du e U ni ve rs ity 2 T Mcatalog 2011 Seite 17 32 A4 F G500 21 04 11 09 07 Seite 29