1. Althen Sensors
  2. Sensors
  3. Acceleration sensors
  4. Capacitive accelerometers
  5. ASC 5421MF Triaxial MEMS acceleration sensor for ride comfort and NVH testing

ASC 5421MF Triaxial MEMS acceleration sensor for ride comfort and NVH testing

Capacitive sensor with low noise, ±2.7 V differential output, and DC response for automotive and structural vibration monitoring.


Key features

  • Triaxial MEMS capacitive accelerometer
  • DC response from 0 Hz
  • Measurement range from ±2 g to ±200 g
  • ±2.7 V differential output
  • Frequency range up to 7000 Hz (±3 dB)
  • Shock resistance: 6000 g
  • Compact (20 g), IP65-rated aluminium housing

Performance highlights 

The ASC 5421MF is a high-precision triaxial MEMS acceleration sensor developed for demanding NVH (Noise, Vibration, Harshness) and vehicle dynamic tests. Its capacitive MEMS design provides accurate and drift-free DC response, making it ideal for both static and dynamic acceleration measurements.
It features a ±2.7 V differential analog output, enabling direct connection to data acquisition systems with high signal integrity. With selectable ranges from ±2 g to ±200 g and a wide frequency bandwidth up to 7000 Hz, the 5421MF supports a wide range of test applications including flutter testing, vehicle chassis dynamics, and structural vibration monitoring.

Usage conditions

The ASC 5421MF operates reliably in extreme environments, with a wide temperature range from –40 °C to +125 °C. Its compact 20-gram anodised aluminium housing offers robust protection in demanding test setups. Powered by a 5 to 40 VDC supply, the sensor delivers a calibrated ±2.7 V FSO analog output, ensuring high-quality, noise-resistant signal transmission.

Possible applications

  • Vehicle and rail dynamic tests
  • Test bench and road simulation platforms
  • NVH and comfort evaluation
  • Flutter and resonance testing in aerospace
  • Structural monitoring under dynamic loading

Advantages of choosing this product

The ASC 542xMF series offers robust reliability, wide frequency response, and compact triaxial sensing in one package. It supports accurate measurements in environments where high acceleration and broadband noise performance are required.

Other important features

  • Noise density from 10 to 680 µg/√Hz
  • Bandwidth up to 2900 Hz (±5%), 7000 Hz (±3 dB)
  • Output impedance: 1 kΩ
  • Adhesive or screw mounting
  • Calibrated per ISO 17025 upon request

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.

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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.

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Technical Specifications

Specification Value
Measurement ranges ±2 g to ±200 g (configurable)
Frequency range (±5 %) Up to 2900 Hz
Frequency range (±3 dB) Up to 7000 Hz
Noise density 10–680 µg/√Hz
Power supply 5–40 VDC
Output ±2.7 V differential
Operating temp -40°C to +125°C
Protection IP65
Weight (excluding cable) 20g
Shock resistance 6000 g
Mounting Adhesive or screws (M3)

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ASC 5525 MF Low-frequency accelerometer

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  • DC to 2900 Hz response
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