1. Althen Sensors
  2. Sensors
  3. Acceleration sensors
  4. Capacitive accelerometers
  5. ASC 4311LN / ASC 4315LN Low noise MEMS capacitive accelerometer

ASC 4311LN / ASC 4315LN Low noise MEMS capacitive accelerometer

Low-noise uniaxial capacitive accelerometer for NVH, ride comfort, and vehicle dynamics testing


Key features

  • Ultra-low noise from 7 μg/√Hz
  • MEMS capacitive accelerometer sensor
  • ±400 g shock resistance
  • Differential output ±4 V FSO
  • DC response, gas damped
  • IP65 aluminum or stainless steel housing

Performance highlights

The ASC 4311LN and ASC 4315LN are high-precision capacitive accelerometers designed for demanding measurements in NVH, ride quality, and vehicle dynamics testing. These uniaxial sensors deliver a differential voltage output of ±4 V FSO with a wide power supply range from 6 to 40 VDC. Thanks to their MEMS-based capacitive architecture, they offer outstanding long-term stability, low offset drift, and excellent frequency response characteristics up to 2000 Hz.

Usage conditions

The ASC 4311LN is housed in lightweight aluminum, while the ASC 4315LN comes in robust stainless steel — both IP65-rated and gas-damped. Each sensor includes an integrated cable with customizable length and connector options. Their flat design allows for quick and secure installation on test benches or in tight vehicle compartments.

Possible applications

  • Noise, Vibration & Harshness (NVH) testing
  • Ride comfort evaluation
  • Vehicle and running dynamics analysis
  • Bench testing and prototype validation
  • Long-term structural vibration monitoring

Advantages of choosing this product

With noise levels starting at just 7 μg/√Hz, the ASC 431xLN series delivers exceptional performance for detecting minute accelerations. The capacitive MEMS technology enables both static (DC) and dynamic (AC) acceleration measurements — ideal for calculating velocity and displacement. Thanks to the stable output and low signal distortion, these sensors are perfectly suited for high-accuracy environments.

Other important features

  • Protection class: IP65
  • Wide frequency range: DC to 2,000 Hz (±5%)
  • Measurement range from ±2 g to ±400 g
  • Optional TEDS module for smart sensor identification
  • Excellent linearity and thermal stability

Do you need this sensor for your next project?

Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.

Talk to an expert

Talk to our experts

Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.

Talk to an expert

Technical Specifications

Specification Value
Measurement range ±2 to ±400 g
Frequency range (±5%) DC to 2,000 Hz
Noise density 7 to 400 µg/√Hz
Scale factor 10 to 2,000 mV/g
Power supply 6 to 40 VDC
Offset (bias) ±40 mV
Protection class IP65
Operating temperature -40 °C to +100 °C
Shock limit up to 5,000 g
Weight without cable 7 g (4311LN) / 19 g (4315LN)
Mounting Adhesive or screw holes
Housing material Anodized aluminum (4311LN) or stainless steel (4315LN)

Related products

Need something else?

ASC 4411LN / ASC 4415LN Low-noise MEMS acceleration sensor for vehicle and ride comfort testing

  • Uniaxial MEMS sensor with ±4 V output
  • IP67 protected aluminum or stainless-steel case
  • Ultra-low noise and stable signal integrity
Datasheet View product

ASC 3521MF Uniaxial MEMS sensor with 7 kHz bandwidth and differential output

  • Uniaxial
  • MEMS Capacitive
  • Aluminum Housing
Datasheet View product

ASC 4221MF Uniaxial capacitive MEMS acceleration sensor for vibration and stability monitoring

  • Measurement Range: ±2 to ±200 g
  • Noise Density: 10 to 680 µg/√Hz
  • Frequency Range (±5 %): DC to 2900 Hz
Datasheet View product