Solar Powered Field Ruggedized Wireless Sensor Node

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Description

MicroStrain’s® Field Ruggedized Wireless Sensor Nodes consist of a V-Link®, SG-Link® or G-Link® housed in a rugged NEMA 4X enclosure, designed for long-term expisure to the elements. These rugged nodes can be battery powered, requiring periodic battery replacement, or solar powered for autonomous operation for many years.

The V-Link® and SG-Link® can be used with most types of analog sensor including: strain gauges, displacement sensors, load cells, pressure sensors, settlement systems, accelerometers, geophones, temperature sensors and others. The G-Link® wireless accelerometer incorporates a triaxial 2 g or 10 g accelerometer.

Applications

Condition-based monitoring of machines

Health monitoring of civil structures

Smart structures and materials

Experimental test and measurement

Vibration and acoustic noise testing

Distributed security networks

Temperature sensor

-25˚C to 70˚C range, accuracy ±4˚C

Analog to digital (A/D) converter

Successive approximation type, 12 bit resolution

Data storage capacity

2 megabytes (approximately 1,000,000 data points)

Data logging mode

Log up to 1,000,000 data points (from 100 to 65,500 samples or continuous) at 32 Hz to 2048 Hz

Sensor event driven trigger

Commence datalogging when threshold exceeded

Real-time streaming mode

Transmit real time data from node to PC - rate depends on number of active channels: 1 channel - 4 KHz, 2 channels - 2 KHz, 3 channels - 1.33 KHz

Low duty-cycle mode

Supports multiple nodes on single RF channel, total update bandwidth of 500 Hz divided by number of nodes

Synchronization between nodes

Datalogging 100 μsec± 50 ppm. LDC mode time stamped at PC

Sample rate stability

Datalogging and LDC (mode(2Hz to 500Hz) 100 μsec ± 25 ppm (90 msec/hour) LDC mode (1 Hz to 2 samples per hour) ±10%

Radio frequency (RF) transceiver carrier

2.4 GHz direct sequence spread spectrum, license free worldwide (2.450 to 2.490 GHz) - 16 channels

RF data packet standard

IEEE 802.15.4, open communication architecture

RF programming & downloading

8 minutes to download full memory

Range for bi-directional RF link

70 m line-of-sight, up to 300 m with optional high gain antenna

Internal Li-Ion battery

3.6 volt lithium ion rechargeable battery, 2 Ah capacity. Optional custom primary batteries up to 57 Ah capacity

Autonomy

Depends upon sensors and power source. Solar powered nodes can be designed to operate for upto 5 years without bettery maintenance

Operating temperature

-20 to +85˚C

Mounting options

Magnetic, clamp, bolt or pipe mountable

Dimensions*

140 mm x 120 mm x 100 mm without solar panel and mounting hardware

Case

ABS plastic, NEMA 4X

Software

Node Commander™ Windows XP compatible

PC Comm

Serial port, 115.2 kBaud

*For dimensioned prints go to www.microstrain.com Patents pending

Supporting Documentation

Solar Powered Field Ruggedized Wireless Sensor Nodes Product Datasheet

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How To Order

For individual components, additional system configurations, or quantity discounts, please contact sales@microstrain.com or call 802-862-6629.

Lead Time

Standard Lead Time for shipping is one week. In the event that longer lead times are anticipated, MicroStrain® will contact the buyer. Credit cards are billed on the date the order is shipped.