LTME: HIGH-PRECISION MEMS ACCELEROMETER FOR STRONG MOTION SEISMIC MONITORING

Accelerometers - Monitoring

LTME is a high-end capacitive MEMS accelerometer which is specially designed for strong motion class B seismic measurements. Thanks to its extremely low noise, low power and wide frequency response the LTME family guarantees accurate and stable seismic measurements without the need for recalibration or maintenance during the lifecycle of the system.

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OVERVIEW

Description

LTME: High-Precision MEMS Accelerometer for Strong Motion Seismic Monitoring

The LTME series is a high-end capacitive MEMS accelerometer designed for Class B strong motion seismic measurements. With extremely low noise, low power consumption, and a wide frequency response, LTME ensures accurate and stable seismic monitoring throughout the system’s lifecycle—eliminating the need for recalibration or maintenance.

LTME is available in triaxial, biaxial, and monoaxial configurations, catering to diverse monitoring needs. The broadband linear response extends from DC to several hundred hertz, depending on the model. Sensitive elements are mounted orthogonally in a hard-coated aluminum housing with IP67 protection, with an optional IP68-rated version for enhanced environmental resilience.

The entry-level 90 dB model meets all the requirements for strong motion event monitoring. Even during light tremors, its data output is comparable to traditional mechanical force-balance accelerometers. However, in environments with very low ambient noise, LTME’s response fades into background levels, whereas a true force-balance accelerometer continues to provide consistent data.

Why Choose LTME?

Designed for long-term, maintenance-free operation
High precision with low self-noise for strong motion detection
Compact, lightweight, and easy to install
Proven reliability for seismic research and monitoring applications

FEATURES

MEMS Technology
Dynamic Range: 90 dB, 100 dB, and 110 dB
Frequency Range: DC to >500 Hz (varies by model)
Full-Scale Ranges Available: ±2g, ±3g, ±5g
High Accuracy & Low Self-Noise
Good Thermal Stability
Power Supply: 7V to 15V
Durable Aluminum Housing (IP67, optional IP68)
100% Italian Product

SPECIFICATIONS

Measurement Capabilities:

Typology: Triaxial, Biaxial, and Monoaxial
Technology: MEMS
Dynamic Range: 90 dB, 100 dB, 110 dB
Full-Scale Ranges:

LTME90: ±2g, ±5g
LTME100: ±2g, ±3g
LTME110: ±3g, ±5g
Bandwidth (±3 dB):
LTME90 ±2g: 1150 Hz
LTME90 ±5g: 1900 Hz
LTME100 ±2g: 1000 Hz
LTME100 ±3g: 1000 Hz
LTME110 ±3g: 550 Hz
LTME110 ±5g: 700 Hz

Noise Performance:

Noise in Band (µG√Hz):

Noise PSD in Band (dB@(1m²/s⁴)/Hz):

Electrical & Environmental Specifications:

Power Supply: 7V to 15V DC
Power Consumption (mW):

LTME90: 100
LTME100: 200
LTME110: 350
Protection: Reverse voltage, overvoltage, and surge protection
Operating Temperature: -40°C to +85°C
Housing: Anodized hard-coated aluminum
Connectors: 62GB-12E12-10SN, 10-pin