![]() This relieves the burden on the host processor and can add intelligence to a sensor node -both key criteria for condition monitoring and Industrial IoT solutions. The ADXL100x applies some intelligent disabling of the internal clock to protect the sensor element during continuous overrange events, such as those that would occur if a motor had a fault. G-range.This is a critical function in developing an intelligent measuring and monitoring system. Piezoelectric accelerometers typically do not integrate intelligent features whereas MEMS capacitive accelerometers like the ADXL100x family offer built-in overrange detection circuitry, which provides an alert to indicate a significant overrange event occurred that is greater than approximately 2× the specified Motion Sensing Requirements for VSM Wearable Applicationsĥ kHz) vibration response a laser vibrometer controller references the ADXL1002 package used for accuracy. ![]() The same accelerometers are also used in wireless sensor networks and IoT applications due to their ultra low power consumption. ![]() Accelerometers used in wearable applications typically classify motion provide freefall detection measure the presence or absence of motion to provide system power up, down, or sleep and help with data fusion for ECG and other VSM measurements. Table 1 shows some vital signs monitoring (VSM) applications and their corresponding settings by context. For these reasons, MEMS accelerometers are typically used in wearable applications. Other key criteria are size and integrated features, such as spare ADC channels and a deep FIFO to help with power management and functionality in the end application. The key specification for accelerometers used in battery-powered, wearable applications is ultra low power consumption, typically in the ♚ range, to ensure that battery life is prolonged for as long as possible. Key criteria: Low power consumption, small size, integrated features to enhance power saving, and usability. In part 2 of this article, we will focus on key specifications and features in the context of wearable devices, condition monitoring, and IoT applications. Choosing the Most Suitable Accelerometer for Your Application-Part 2Ĭhoosing the most suitable accelerometer for your application can be difficult, as data sheets from various manufacturers can differ significantly, leading to confusion as to what are the most critical specifications.
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