SDI MEMS DC Accelerometers – Precision You Can Trust

MEMS accelerometers are often selected for DC and low-frequency measurement, compact size, low power use, and integration flexibility. Piezoelectric accelerometers are commonly used for higher-frequency dynamic vibration and shock measurement but are not typically suited for static or true DC acceleration. The right choice depends on the frequency range, environment, and type of motion being measured. You can find a more detailed comparison here.

A Variable Capacitance DC accelerometer measures acceleration down to DC (0 Hz), which allows it to capture static and low-frequency motion as well as dynamic vibration. Engineers often use SDI’s DC accelerometers when they need to measure tilt, sustained acceleration, low-frequency vibration, or motion events that piezoelectric sensors may not capture as effectively.

SDI MEMS DC Accelerometers are built for long-term reliability in applications where shock, vibration, temperature variation, and extended operating periods can affect sensor performance. Their low noise, rugged construction, and stable output help engineers maintain consistent measurement data over time, even in demanding industrial test, monitoring, and motion-sensing environments.

The right SDI accelerometer depends on your G-range, axis of measurement, voltage, frequency range, noise requirements, mounting needs, and operating environment. Engineers can use SDI’s product finder or contact the SDI team for help matching a MEMS DC Accelerometer to the application.

Engineers should evaluate range, noise, bias stability, frequency response, shock survivability, temperature performance, output type, mounting style, and integration requirements. For long-term programs, product availability and supplier support also matter because sensor changes can create retesting, redesign, or qualification issues.