What is the optimum high frequency MEMS acceleration sensor evaluation board for vibration measurement

EVAL-ADXL1001Z is an evaluation board from Analog Devices to quickly evaluate the MEMS acceleration sensor "ADXL1001".

ADXL1001 is a flat, 1 axis, analog output accelerometer with a wide linear frequency response range (DC to 11 kHz) and an ultra-low noise density of 30μg/√Hz in the ±100g range.

So in particular, This product is perfect for engineers who:

• currently has piezoelectric acceleration sensing and want to reduce cost.
• wants to monitor for pairing failures
• wants to monitor the condition of other wear equipment
• wants to embed into wireless products

Conventional MEMS acceleration sensors had insufficient noise performance, so they could not meet the specifications required for vibration measurement.

However, the ADXL1001 from Analog Devices can now achieve the same high frequency noise performance as the PZT technology.

As a result, the reliability, quality, reproducibility, low cost, and small size of MEMS can be used in state monitoring products.

The MEMS acceleration sensor with small and low cost can be used as compared with the piezoelectric acceleration sensor.

Common wear mechanisms, such as pairing, gears, chains, belts, brushes, shafts, coils and valves, wear out over time and require maintenance, such as maintenance and replacement.

The MEMS acceleration sensor ADXL1001 can be used to measure vibration and detect abnormal frequencies to avoid failure.

By performing an FFT operation (Fourier transform) from the acceleration sensor to the signal processing in the subsequent stage, it is possible to greatly simplify the checking of abnormal frequencies.

EVAL-ADXL1001Z is a simple evaluation board of "2cm x 2cm" in size.

There are screw holes in the 4 corners, and it can be fixed firmly to a mechanical shaker to start evaluation immediately.

EVAL-ADXL1001Z is equipped with the MEMS acceleration sensor ADXL1001. It can be evaluated at ± 100g and the linear frequency response range is DC to 11 kHz.

The following 3 verifications are available:

• Measurement mode

It can be evaluated in normal operation mode, and the active monitoring can be confirmed by the continuous analog output.

This mode is typically used to evaluate your application.

• Standby mode

In this mode, measurement is paused and the current consumption can be reduced to 225μA.
You can switch from standby mode to measurement mode in less than 50μs.

• On-Demand Self Test

It operates by activating the ST pin.
This allows the device's internal proof mass to operate electrostatically to test the electrical response.

In addition, an RC low-pass filter is provided on the output, and the components are removable. The low-pass filter can be implemented on the output of the device to suit your application.

• State monitoring
• Preventive maintenance
• Asset state monitoring
• Measurement equipment
• HUMS（Health Monitoring System

• Analog output by an acceleration sensor with 1 axes in a plane
• Linear frequency response range : DC to 11 kHz (3dB point)
• Resonance frequency：21 kHz
• 30 μg/√Hz at ultra-low noise density ± 100 g
• Detection of overrange and DC coupling enable fast recovery time
• Full electromechanical self-test capability
• Sensitivity performance
• Sensitivity stability over the entire temperature range : 5%
• Full scale range linearity : ± 0.1%
• Orthogonal axis sensitivity : ± 1% (ZX), ± 1% (YX)
• Single source operation
• Output voltage ratio-metric to the power supply
• Low power consumption：1.0 mA
• Power-Saving Standby Operating Mode for Fast Recovery
• RoHS compliant
• Temperature range：-40 °C ～ +125°C

• 2 sets of vias spaced for 6 pin header
• Easy installation on prototyping boards or PCBs
• Small size and board rigidity minimize impact on user systems and acceleration measurements