wireless sensor for measuring acceleration, shock & vibration

8/6/2019 Wireless Sensor for measuring Acceleration, Shock & Vibration

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AX-3D Version

www.beanair.com

SmartSensorWireless Triaxial Accelerometer

Mems TechnologyNon contact actuationTri-Axial :

+/- 2g or +/- 10gAnti-Aliasing

Filter 5th

Streaming

5 kSPSIEEE 802.15.4 AntennaDivertsity

Main Features

Applications

Wireless Triaxial accelerometer based

on MEMS Technology

Measurement range: +/- 2g or +/- 10g

Very Low noise Density: 45 g/Hz

(+/- 2g version), 100 g/Hz (+/- 10g version).

Excellent radio link relying on the radio

antenna diversity developed by Beanair

Non contact actuation for faster installation

Streaming packet mode: 5 KSPS (mono-channel)

Radio Range : 1000 m (L.O.S)

Ultra-Power radio Technology IEEE 802.15.4

Current consumption in idle mode :


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AX-3D Version

www.beanair.com

SmartSensor


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AX-3D Version

www.beanair.com

SmartSensor

Remote configuration and monitoring

*Over-the-Air Configuration

OTAC*

The BeanScape application allows the

user to view all the data transmitted by

the BeanDevice AX-3D

With the OTAC (Over-the-Air configura-

tion) feature, the user can remotely

configure the BeanDevice AX-3D.

Several data acquisition modes are available on the

BeanDevice AX-3D :

Low Duty Cycle Data Acquisition mode (LDCDA): the data

acquisition is immediately transmitted by radio. The trans-

mission frequency can be configured from 1s to 24h.

Alarm Mode: the measured value is transmitted by radio

whenever an alarm threshold (fixed by the user) is detected

(4 alarm threshold levels High/Low).

Survey Mode: operates like the Alarm mode but the

device sends frequently a beacon frame informing its

current status.

Streaming Packet Mode: all measured values are

transmitted by packet within a continuous flow at 5000

samples per second maximum

Streaming Mode: all measured values are transmitted in

real-time within a continuous flow at 100 samples per

second maximum

Math Mode : Values such as the mean value, minimum

value, maximum value and standard deviation are calculated

on sample time series and transmitted by radio .

AX-3D

Antenna Diversity

While the vast majority of wireless sensors shows their

limits in harsh industrial environment, the

BeanDevice AX-3D integrates an innovative antenna

diversity design, allowing to optimize the radio link quality

in environments subject to random and diverse

disturbance. Diversity antenna improves both the quality

and reliability of a wireless link by 30%.


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AX-3D Version

www.beanair.com

SmartSensorEmbedded Data Logger up to

1,000,0000 data acquisition records

The BeanDevice AX-3D integrates an embedded DataLogger, which can be used to log data when a

Wireless Sensor network can not be easily deployed on your site. All the data acquisition are stored on the

embedded flash and then transmitted to the BeanGateway when a Wireless Sensor Network is established.

The dataLogger feature is compatible with all the data acquisition mode available on your

BeanDevice AX-3D:

LowDutyCycle Data Acquisition

Alarm

Math

Streaming & Streaming packet ( maximum data rate : 1,67 Ksamples per second for each axis)

Example: Vibration Analysis on

windmills blades

The BeanDevice AX-3D is

configured with its dataLogger

feature. A standalone installation

of the BeanDevice AX-3D will be

done on the windmills blades,

without the necessity to be

connected to the BeanGateway.

Once the blades starts rotating,

each data is recorded on the

embedded flash.

When the windmill is for mainte-

nance, a technician working on

the site can send a request for a

log transmission. Then the

BeanDevice AX-3D starts sen-

ding all its logs . If all the logs are

sucessfully transmitted to the

BeanGateway, the flash memory

is erased and new logs will be

recorded.


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SmartSensor

RF Specifications

Wireless Protocol Stack IEEE 802.15.4 (2006 version)

WSN Topology Point-to-Point / Star

Encryption AES 128 bits (AES integrated coprocessor)

Data rate 250 Kbits/s

RF Characteristics ISM 2.4GHz 16 Channels. Antenna diversity architecture designed by Beanair

TX Power +0 dBm to +18 dBm

Receiver Sensitivity -95,5 dBm to -104 dBm

Maximum Radio Range 500m (L.O.S)

Antenna Antenna diversity : 2 omnidirectional antenna with a gain of 2,2 dBi

Product referenceBND-AX3D -NGWP

NMeasurement Range:

- 2 : +/-2g measurement range- 10: +/-10g measurement range

WPWireless Technology

- IEEE: IEEE 802.15.4 (2006)

Example: BND-AX3D-10G-IEEEWireless Accelerometer with 10g measurement range , IEEE 802.15.4 Wireless Technology

Accelerometer Specifications

Accelerometer

technologyMEMS technology triaxial accelerometer

Sensitivity AX-3D-2G Version: 16384 counts/gAX-3D-10G : 3277 counts/g

Typical non-linearity 0,1% FS

Analog to Digital converter 16-bits, SAR architecture (Successive Approximation Register) with temperature compensation

Sensor frequency response

(-3 dB)0 to 800 Hz

Noise spectral density 2g version: 45 g/Hz / 10g version : 100 g/Hz

Anti-aliasing filterButterworth 5

thorder filter cut-off frequency : 1 Hz to 2000 Hz remotely programmable

(BeanScape)


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SmartSensor

Others specifications

Embedded logger

Storage Capacity : up to 1 000 000 data acquisition

Integrated real time clock

Write/read Cycle: 400 000

Real Time Clock Extremely Accurate Real Time Clock for measurement timestamping

Integrated battery charger

Integrated Lithium-ion battery charger with high precision battery monitoring :

Overvoltage Protection, Overcurrent/Short-Circuit Protection, Undervoltage Protection

Battery Temperature monitioring

Current accumulation measurement

Current consumption

During data acquisition : 20 to 30 mA

During Radio transmission : 40 mA @ 0dBm , 70 mA @ 18 dBm

During Idle : < 45 uA

Operating Temperature Industrial temperature : -40 C to +85 C

EnclosureAluminium & Watertight (IP66) enclosure

Dimensions in mm (LxWxH): 80x55x21 mm, Weight (battery included) : 135g

Shocks resistance 60g during 50 ms

NormsCE Labelling Directive R&TTE (Radio) ETSI EN 300 328

ROHS - Directive 2002/95/EC

External power supply External power supply : +8v to +28v

Rechargeable batteryHigh density Lithium-Ion rechargeable battery with a capacity of 1.3 Ah (referenced as

BAT1.3DMG)

Power-supply bloc

(Option)Wall plug-in, Switchmode power Supply 12V @ 1,25A with sealed M8 Plug (IP67)

Mechanical mounting

(Option)Screw mounting

Over-the-air configuration (OTAC) parameters

Data Acquisition mode

(SPS = sample per second)

Low Duty Cycle Data Acquisition (LDCDA) Mode: 1s to 24 hour

Alarm & Survey mode: 1s to 24 hourMath Mode : 5 kSPS maximum

Streaming Packet Mode: 5 kSPS maximum

Streaming Mode: 100 SPS maximum

Sampling Rate(in streaming packet mode)

Minimum: 1 SPS

Maximum: 5 kSPSmaximum (one channel activated), 2,5 kSPS (2-channels activated),

1,67 kSPS (3 channels activated)

Alarm Threshold 2 high levels alarms & 2 low levels alarms

Cut-off frequency

(Anti-aliasing filter)

12000 Hz

Power Mode Sleeping, Sleeping with Network Listening & Active

TX Power -7 dBm / -1 dBm / 5 dBm / 11 dBm / 15 dBm / 18 dBm

Product specifications are subject to change without notice. Contact Beanair for latest specifications.


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AX-3D Version

www.beanair.com

SmartSensor

Indoor Version

AX-3D

Scilab scripts for digital

signal processing

OR

Getting started with a Wireless Sensor Networks

Description StarterKit Reference

Starterkit Wireless Accelerometer 2g

1x BeanGateway Ethernet(Indoor version)1x BeanDevice AX-3D-2G-IEEE

1x Beanscape Lite

1x Scilab Scripts for Digital Signal Processing

(FFT and PPV Filtering)

SK_AX_3D_2G_IND

Starterkit Wireless Accelerometer10g

1x BeanGateway Ethernet(Indoor version)1x BeanDevice AX-3D-10G-IEEE

1x Beanscape Lite



SK_AX_3D_10G_IND

Starterkit Wireless Accelerometer 2g

1x BeanGateway Ethernet(Outdoor version)1x BeanDevice AX-3D-2G-IEEE

1x Beanscape Lite



SK_AX_3D_2G_OUT

Starterkit Wireless Accelerometer10g

1x BeanGateway Ethernet(Outdoor version)1x BeanDevice AX-3D-10G-IEEE

1x Beanscape Lite



SK_AX_3D_10G_OUT

Outdoor Version

Free software for numerical

computation

The BeanDevice AX-3D operates only on

our Wireless Sensor Networks , you will need

the BeanGateway and the BeanScapefor starting a wireless sensor Networks .

wireless sensor for measuring acceleration, shock & vibration

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