Piezo accelerometers offer wide frequency response
An
Endevco product story
Edited by the Engineeringtalk editorial team
Nov 29, 2001
Endevco's Piezopak series of low-cost piezoelectric accelerometers offer a wide frequency response, high shock survivability and low noise
Endevco's Piezopak series of low-cost piezoelectric accelerometers are designed specifically to provide high-performance, integrated vibration measurement of machines, structures and vehicles.
The accelerometers offer a wide frequency response, high shock survivability and low noise.
Additional features include shielding, ground isolation, and sealing against environmental contamination.
The piezoPAK accelerometers measure only 15.2 x 20.3 x 5.3 mm and weigh less than 5 grams.
Five solder pads are provided for power and signal connection.
Endevco can also package the PiezoPAK series into customized housings, allowing for cable/connector options.
The Piezopak accelerometers offer 15 mV/g or 100 mV/g sensitivity with X, Y or Z axis orientation.
Signal ground is connected to the cover and an internal shield.
The standard power configurations include +3 to +16 VDC for the Model 55; +2.7 to +5.5 VDC for the Model 55L; and +10 to +24 VDC with a 2-20mA constant current source for the Model 56.
The output bias is 50% of the supply voltage for the Models 55 and 55L, and 6.6-7 VDC for the Model 56.
Peak linear range is 42% of the supply voltage for Models 55 and 55L, and 2 VDC for Model 56.
An optional temperature sensor with a linear output of 10 mV/*C is also available and is specified by the "T" option in the model number designation.
The temperature sensor has a separate power input and requires a voltage of 4.5 to 10 VDC.
At 0*C, the unit has a 500 mV bias.
(This was Engineeringtalk's Top Story on 28 November 2001).
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