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Solar Powered, Ruggedized Wireless Sensor Nodes
Field Ruggedized Wireless Sensor Nodes
Features and Benefits
- 2.4 GHz direct sequence spread spectrum radio is license free worldwide
- IEEE 802.15.4 open communication architecture
- Supports simultaneous streaming from multiple nodes to PC
- Datalogging rates up to 2048 Hz, stores up to 1,000,000 measurements
- Real-time streaming rates up to 4 KHz
- Communication range up to 70 m line-of-sight, 300 m with high gain antennas
- Rugged NEMA 4X enables long-term exposure in hostile environment
- Low power consumption for extended use with primary batteries or solar recharged
lithium batteries
- Internal rechargeable battery
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Introduction
MicroStrain® Field Ruggedized Wireless Sensor Nodes contain either a V-Link® wireless voltage node,
SG-Link® wireless strain node, G-Link® wireless accelerometer node, or TC-Link® wireless
thermocuple node. Each is housed in a rugged NEMA 4X enclosure designed for long-term exposure to the elements. These
rugged nodes come standard with high capacity lithium batteries, designed for operation in extreme temperatures.
Optionally, they can be run with solar power, providing autonomous operation for many years.
The V-Link® wireless voltage node and SG-Link® can be used with most types of analog sensors
including: strain gauges, displacement sensors, load cells, pressure sensors, settlement systems, accelerometers,
geophones, temperature sensors and others. The G-Link® wireless accelerometer node incorporates a triaxial 2
g or 10 g accelerometer. The TC-Link® wireless thermocouple node supports 6 thermocouples and a
relative humidity sensor.
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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
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Common Specifications |
(excluding TC-Link®) |
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Temperature sensor |
-40˚C to 70˚C range, accuracy 2˚C (at 25˚C) |
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Analog to Digital (A/D) Converter |
Successive approximation type, 12 bit resolution |
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Data Storage Capacity |
2 megabytes (approximately 1,000,000 data points) |
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Data Logging Mode |
Log up to 1 million data points at sampling rates from 32Hz to 2048Hz per channel in fixed (from 100 to 65,500 samples) or continuous (until memory full) sessions |
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Sensor Event Driven Trigger |
Commence datalogging when threshold exceeded |
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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, 4
channels - 1 KHz, 5 channels - 800 Hz, 6 channels - 666 Hz, 7 channels - 570
Hz, 8 channels - 500 Hz |
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Low Duty-cycle Mode |
Supports multiple nodes on single RF channel |
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Synchronization Between Nodes |
Datalogging 4 sec 50 ppm, LDC mode time stamped at PC |
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Sample Rate Stability |
25 ppm for sample rates > 1 Hz, 10% for sample rates < 1 Hz |
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Radio Frequency (RF) Transceiver Carrier |
2.4 GHz direct sequence spread spectrum, license free worldwide (2.405 to
2.480 GHz) - 16 channels, radiated power 0 dBm (1mW) |
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RF Data Packet Standard |
IEEE 802.15.4, open communication architecture |
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RF Data Downloading |
8 minutes to download full memory |
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Range for Bi-directional RF Link |
70 m line-of-sight, up to 300 m with optional high gain antenna |
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Internal Li-Ion Battery |
3.7 volt lithium ion rechargeable battery
Customer may supply external power from 3.2 to 9 volts |
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Autonomy |
Depends upon sensors and power source. Solar powered nodes can be designed to operate
for up to 5 years without battery maintenance |
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Operating Temperature |
-20˚C to +60˚C with standard battery
-20˚C to +60˚C with rechargeable battery for solar power
-40˚C to +85˚C for electronics only |
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Mounting Options |
Magnetic, clamp, bolt or pipe mountable |
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Dimensions |
140 mm x 120 mm x 100 mm without solar panel and mounting hardware
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Enclosure Material |
ABS plastic, NEMA 4X |
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Software |
Node Commander® Windows XP/Vista compatible |
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Compatible Base Stations |
USB, RS-232, Analog, WSDA® |
Patents pending
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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.
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