Accelerometers & Tiltmeters

PRODUCTS & SPECIFICATIONS

Inspection & Optimisation
- Monitoring & Engineering
  - Products & Specifications

Continuously monitor static and dynamic displacement forces

SENSR® brand Accelerometers and Tiltmeters from Loram provide continuous insight into the structural condition of bridges and rail infrastructure by recording multi-axis static and dynamic displacements with the highest levels of accuracy and resolution.

GP1 (Programmable accelerometer, battery powered)

The original programmable accelerometer
MEMS accelerometers and temperature sensing elements
Original device measurement range was +/- 10 g
The -L variation measurement range is +/- 6 g
Key feature that makes this device unique is that the recording strategy is programmable so that only two AA cells and a reasonable amount of non-volatile memory can record for as long as several weeks.
TI MSP430, traditional microcontroller firmware

GP2 (Programmable accelerometer, USB tethered)

Essentially a GP1 without batteries and in a smaller enclosure with connected cord
Customers could connect the GP2 directly to a PC and get accelerometer readings without additional data acquisition equipment
Original device measurement range was +/- 10 g
The -L variation measurement range is +/- 6 g
The -X variation increased the sample rate from 100 samples / s to 400 samples /s as the data could be streamed to the PC and the onboard memory was no longer a limitation
TI MSP430, traditional microcontroller firmware (support only)

CX1(PC connected, network accelerometer)

SENSR’s network-connected accelerometer
Customer feedback desiring longer cables and multiple sensors indicated that adding an Ethernet interface would greatly increase the usability of the accelerometers 48 V Power-over-Ethernet to comply with standards
Customer feedback also suggested that high-resolution acceleration and tilt measurements were useful, so the CX1 used +/- 1.5 g accelerometers and incorporated separate X and Y inclinometer sensors
Attempt to optimise protection against environmental hazards (moisture, including submersion, continental hot and cold temperatures, lightning voltage transients) without incurring much cost
Streams measurement data back to a host system communicating through the CX -APIAtmel AVR A0/A1 (AT32UC3A0512) with traditional microcontroller firmware on processor board, TI MSP430 with traditional microcontroller firmware on sensor board

Blue CX1 Network Accelerometer and Inclinometer

SR1 (Network accelerometer)

Second-generation version of the CX1
Purpose built for structure monitoring, only Ethernet interface (no USB)
O-ring sealing for prolonged submersion
12 V passive Power-over-Ethernet to help resist voltage transients
Onboard computer has enough resources to process the data from the sensors rather than just passing it to a host system
SENSR CPU module (Atmel SAMA5D2) with Linux OS and software built using Yocto, also -Microchip ARM Cortex M0+ with traditional firmware on sensor board