Piezo-Electric Accelerometers - A/131/V
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Catalog excerpts

Piezo-Electric Accelerometers - A/131/V - 1

Triaxial piezo-tronic accelerometer The d33 component suppression property of the KONIC design, resulting in minimisation of cross axis error, is particularly advantageous for three axis measurement integrity. wideband temperature calibration 3% max. cross axis error low frequency QVC version (/L) 100mV/g sensitivity with constraint on low frequency response FREQUENCY RESPONSE TEMPERATURE RESPONSE The spatial response of a structure to dynamic forcing, may lead to erroneous single axis vibration or shock measurement due to the inherent directional property of the transducer. In cases where this is deemed to be a problem, an orthogonal three axis measurement, allowing computation of absolute value and direction offers a solution. ightweight triaxial vibration transducer comprising three KONIC all welded inserts, each with hybrid QVC, bonded orthogonally into a hard anodised aluminium housing. The inserts are electrically insulated, individually and from the housing, thus eliminating ground loop interference. Low impedance O/P provides a high degree of noise immunity (≈ 80dB improvement vs. equiv. charge source device @ 50Hz) and allows use with low cost coaxial cable. The additional mechanical isolation implicit in the construction provides also near elimination of strain induced error. CONVERSION MODE Voltage sens., ±5% @ 20°C, mV/g (X, Y, Z) Resonant frequency kHz Cross axis error % max Temperature range °C Voltage sens. deviation re 20°C Pyro-electric output, g/°C Pyro-electric corner freq. Hz Base strain sens. g/µ strain Max continuous accn. g sine Supply voltage, V Supply current, mA Bias voltage V (20°C) Settling time to 90% final val. secs L.F. corner frequency, Hz Noise level, equiv. mg Saturation limit, equiv. g Output resistance, ohms Supply ripple reject. @ 50Hz, dB Case seal Insert/block insul. resce, Mohms Materials Mounting Weight gm Connector

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