Project Description
PROBES
Displacement
Measuring range: 25mm
Resolution: <±5μm
Temperature (internal or remote)
Range: -25°C to +70°C
Resolution: 0,6°C
APPLICATIONS
Indoor or outdoor, even in harsh environments
Cracks monitoring (1 to 3 axes) for buildings, monuments, bridges, dams, engineering structures…
Monitoring of joints on structures
Each sensor is autonomous; it doesn’t need another box nor a sending station
SENSOR
IoT, LoRa, LoRaWAN™
High capacity Li-ion cell
13,5cm x 13,5cm x 6cm
Operating temperature: -25°C to +85°C
1 to 3 probes per sensor
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Description
Autonomous sensor with probes; they are linear potentiometers measuring extremely small displacements.
They measure the cracks evolution or the contraction or joints extension.
Combined, several sensors can be used to monitor cracks in 3D.
This sensor is very robust and works in harsh environments.
Each sensor is autonomous; it does not need another box or a sending station
Applications
Monitoring in buildings, bridges, pipelines, dams.
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Sensor characteristics
Data recording
| Local measurement interval | 1 second (via Bluetooth application) |
| Data reporting interval | 30 minutes (configurable) |
| Reported data | Probe distance (1 to 3) |
| Case temperature | |
| Battery voltage |
Motion probe
| Measurement principle | LVDT |
|---|---|
| Measuring range | 0 … 25mm |
| Resolution | < ±5µm |
| Repeatability | < 10µm |
| Linearity | ±0,2% |
Temperature sensor inside the housing
| Measuring principle | NTC |
|---|---|
| Measuring range | -55 … +125°C |
| Resolution | 0,6°C (-5 … +50°C) |
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Long distance radio
| Radio technology | LoRaWAN |
|---|---|
| Security | AES-128 data encryption |
| Supported features | LoRa private or operated, OTAA |
| Radio range | Up to 15 km |
| Transmitted power | Up to 20 dBm (adaptive) |
| Receiver sensitivity | -142 dBm |
| Frequency band | 868 MHz (EU), 915MHz (US, AS, AU) |
| Antenna | Internal or external to the housing |
Local radio
| Radio technology | Bluetooth Low Energy |
|---|---|
| Radio range | Up to 40m |
| Transmitted power | Up to 4 dBm |
| Receiver sensitivity | -96 dBm |
| Frequency band | 2.4 GHz ISM |
| Antenna | Internal to the box |
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Power supply
| Battery type | Lithium-Ion | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Power consumption | < 1mW | ||||||||||
| Battery life * |
|
* Indicative duration, for use in the conditions of use and depending on the number of connected sensors and their characteristics
Sensor
| Operating temperature | -25 … +85°C |
|---|---|
| Dimension | 135 x 135 x 60 mm |
| Weight | 350g |
| Internal memory | 1024 measurements |
| Case | Polycarbonate (weather, UV and impact resistant) |
| Decompressor against condensation | |
| IP65, IK07 | |
| Fixing brackets |
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Order references
Order references
| ADLv-01-25 | fissurometer with 1 LVDT sensor (stroke 25mm, cable length 1m) |
|---|---|
| ADLv-02-25 | fissurometer with 2 LVDT sensors (stroke 25mm, cable length 1m) |
| ADLv-03-25 | fissurometer with 3 LVDT sensors (stroke 25mm, cable length 1m) |
Other options: contact us
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Warnings
Specifications and information in this document are subject to change without notice.
A3IP products are not warranted or licensed for use as a critical component for medical or other life-saving or life-sustaining applications, or other applications where failure could reasonably be expected to cause serious injury, death, or damage to any structure, work or building.
In addition, devices are indications and decision aids and cannot be used in alarm or critical applications.
Contact
https://www.a3ip.com
contact@a3ip.com
+33 (0)2 40 94 78 41
A3IP
Bâtiment Placel
Route de Vannes
44880 SAUTRON
France
