Vibration Measure System

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Lizbeth Dennis
5 years ago
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1 Product Summary McLaren Technology Centre Chertsey Road Woking Surrey GU21 4YH UK Suite 115 Bostick Building 9801 West Kincey Avenue Huntersville NC USA 2014 Revision Date: 05 Nov 2010 Page 1 of 8

Available with two, three or six channels, the AIU (Accelerometer Interface Unit) is to be used with IEPE (Integrated Electronics Piezo-Electric) accelerometers and harness to provide a

The voltage output from the IEPE is attenuated and buffered by the AIU to convert the 10V full scale measurement range to an output in the range of 0.5 to 4.5V,

2 Available with two, three or six channels, the AIU (Accelerometer Interface Unit) is to be used with IEPE (Integrated Electronics Piezo-Electric) accelerometers and harness to provide a high-frequency/high-g signal for the High Speed Logger (HSL-500) or alternative unit. The AIU provides a constant current source to power the IEPE accelerometer. The voltage output from the IEPE is attenuated and buffered by the AIU to convert the 10V full scale measurement range to an output in the range of 0.5 to 4.5V, biased at 2.5V. AIU Application High-frequency chassis and engine vibration analysis. Supply Voltage 8 to 16V Reverse polarity protection Excitation voltage 24±0.2V Excitation current 2.45±0.1mA per channel Output voltage per channel 0.5 ±0.025V Full scale negative 2.5 ±0.025V 0g 4.5 ±0.025V Full scale positive The above tolerance does not include the sensitivity tolerance and sensitivity drift of the IEPE accelerometer Gain fixed at 0.4 AC coupled Filter characteristics: High pass Filter: -3dB at 10Hz Low pass Filter: -3dB at 4.8kHz Output impedance 100Ω Environmental HE30 aluminium alloy body, anodised and dyed blue Splash resistant to standard motorsport fluids Maximum humidity 100% Operating temperature 0 to +125 C Six-Channel AIU Supply current 12V typ Weight less than 45g Output connector: Lemo HES.1F.308.XLDP Supply Ground USA: 2014 Revision Date: 05 Nov 2010 Page 2 of 8

3 Pin 3 Output Channel 1 Pin 4 Output Channel 2 Pin 5 Output Channel 3 Pin 6 Output Channel 4 Pin 7 Output Channel 5 Pin 8 Output Channel 6 Input Connector: Lemo HEN.1F.308.XLNP Pin 3 IEPE Channel 1 Pin 4 IEPE Channel 2 Pin 5 IEPE Channel 3 Pin 6 IEPE Channel 4 Pin 7 IEPE Channel 5 Pin 8 IEPE Channel 6 Six-Channel AIU O Three-Channel AIU Supply current 12V typ Weight less than 35g USA: 2014 Revision Date: 05 Nov 2010 Page 3 of 8

4 Output connector: Lemo HES.0F.305.XLDP Supply Ground Pin 3 Output Channel 1 Pin 4 Output Channel 2 Pin 5 Output Channel 3 Input Connector: Lemo HES.0F.305.XLNP Pin 3 IEPE Channel 1 Pin 4 IEPE Channel 2 Pin 5 IEPE Channel 3 Three-Channel AIU O Two-Channel AIU Supply current 12V typ Weight less than 30g Output connector: Lemo HES.FF.304.XLDP USA: 2014 Revision Date: 05 Nov 2010 Page 4 of 8

5 Supply Ground Pin 3 Output Channel 1 Pin 4 Output Channel 2 Input Connector: Lemo HEN.FF.304.XLNP Pin 3 IEPE Channel 1 Pin 4 IEPE Channel 2 Two-Channel AIU O IEPE - Three-Axis Excitation voltage 18 to 30 VDC Constant current excitation 2 to 20mA Output impedance #200ohm Output Bias voltage 7 to 11 VDC Settling time (within 10% of bias) <3sec Performance Sensitivity: 5mV/g ±20% Measurement range: ±1000g Frequency range (±5%) Y and Z axis: 2 to 8000Hz Frequency range (±5%) X axis: 2 to 5000Hz Frequency range (+1dB) X axis: 5000 to 8000Hz Broadband resolution 1 to 10000Hz: 0.003g rms Non-linearity: 1% USA: 2014 Revision Date: 05 Nov 2010 Page 5 of 8

Transverse sensitivity: 5% Environmental Titanium body Operating temperature -50 to +160 C Overload limit (shock) ±10000g pk Weight less than 1g (without cable) Cable length 1500mm Interface

6 Transverse sensitivity: 5% Environmental Titanium body Operating temperature -50 to +160 C Overload limit (shock) ±10000g pk Weight less than 1g (without cable) Cable length 1500mm Interface Harnesses Teflon coated cable Harness length 1000mm ±1000g three-axis accelerometer O IEPE - One-Axis Excitation voltage 18 to 30 VDC Constant current excitation 2 to 20mA USA: 2014 Revision Date: 05 Nov 2010 Page 6 of 8

Output impedance #200ohm Output Bias voltage 7 to 11 VDC Settling time (within 10% of bias) <3sec Performance Sensitivity: 5mV/g ±20% Measurement range: ±1000g Frequency range (±5%): 2 to 10000Hz

7 Output impedance #200ohm Output Bias voltage 7 to 11 VDC Settling time (within 10% of bias) <3sec Performance Sensitivity: 5mV/g ±20% Measurement range: ±1000g Frequency range (±5%): 2 to 10000Hz Frequency range (±10%) 1.5 to 15000Hz Frequency range (±3dB) 0.7 to 25000Hz Broadband resolution 1 to 10000Hz: 0.003g rms Non-linearity: 1% Transverse sensitivity: 5% Environmental Aluminium body Operating temperature -50 to +120 C Overload limit (shock) ±10000g pk Weight 0.2g typical 3-56 Coaxial Jack Interface Harnesses Teflon-coated cable Harness length 1000mm USA: 2014 Revision Date: 05 Nov 2010 Page 7 of 8

8 ±1000g one-axis accelerometer O Accessories Length AIU6 harness connects two, three-axis accelerometers AIU6 harness connects six, one-axis accelerometers AIU3 harness connects one, three-axis accelerometer AIU2 harness connects two, one-axis accelerometers AIU3 harness connects three, one-axis accelerometers 1000mm O mm O mm O mm O mm O USA: 2014 Revision Date: 05 Nov 2010 Page 8 of 8

Accelerometer Interface Unit AIU-6

Accelerometer Interface Unit AIU-6 Available with two, three or six channels, the AIU (Accelerometer Interface Unit) is to be used with IEPE (Integrated Electronics Piezo-Electric) accelerometers and harness