Surface mount accelerometers provide enhanced performance

10th January 2020
Posted By : Lanna Cooper
Surface mount accelerometers provide enhanced performance


Silicon Designs has announced the global market launch of its Model 1522 series, an industry-exclusive family of enhanced temperature performance, low cost, general purpose analog surface mount accelerometers. Units are now in active production and are available for immediate customer shipment.

With availability in eight unique models and standard ranges from ±2g to ±400g, the Model 1522 series provides reliable vibration and acceleration measurements within more thermally demanding zero-to-medium frequency applications, such as those characterised by large or rapid temperature fluctuations; or, where high or low temperature extremes must otherwise be maintained over an extended time frame.

The accelerometers also provide bias and scale factor performance over an expanded operating temperature range of -55°C to +125°C, further responding to both AC and DC acceleration.

The robust design of the Model 1522 series combines a micro-machined capacitive sense element together with a custom integrated circuit. The circuit includes both a sense amplifier and a ±4V differential output stage.

An additional integral temperature sensor facilitates the self-correction of any previously characterised bias and scale factor temperature dependence for any one particular accelerometer. All accelerometer internal components are housed within a hermetically sealed and nitrogen damped LCC surface mount package. Units are also RoHS compliant.

Carefully regulated manufacturing processes ensure that each Model 1522 series accelerometer is made to be virtually identical within a given g-range. Units are 100% in-house tested, programmed, calibrated and verified within a climate chamber environment to ensure their continued measurement accuracy and reliability, particularly under thermally volatile conditions.

Each accelerometer is marked with a serial number for traceability and is shipped with an initial test report. The test report lists measured bias, scale factor, bias and scale factor temperature coefficients, linearity, operating current and DV frequency response/phase plots.

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