24-12-2012, 06:09 PM
iNEMO Intertial Module: 9 degrees of freedom sensing solution
[attachment=45192]
Features
■ 3 acceleration channels, 3 angular rate
channels, 3 magnetic field channels
■ ±2/±4/±8/±16 g dynamically selectable linear
acceleration full-scale
■ ±2/±4/±8/±12 gauss dynamically selectable
magnetic full-scale
■ ±250/±500/±2000 dps dynamically selectable
angular rate full-scale
■ 16-bit data output
■ SPI / I2C serial interfaces
■ Analog supply voltage 2.4 V to 3.6 V
■ Power-down mode / Low-power mode
■ Programmable interrupt generators
■ Embedded temperature sensor
■ Embedded FIFO
■ ECOPACK® RoHS and “Green” compliant
Applications
■ Indoor navigation
■ Smart user interface
■ Advanced gesture recognition
■ Gaming and virtual reality input device
■ Display/map orientation and browsing
■ eCompass
■ Position and motion detection functions
■ Click/double click recognition
■ Intelligent power saving for handheld devices
Absolute maximum ratings
Stresses above those listed as “absolute maximum ratings” may cause permanent damage
to the device. This is a stress rating only and functional operation of the device under these
conditions is not implied. Exposure to maximum rating conditions for extended periods may
affect device reliability
Sensitivity
Linear acceleration sensor sensitivity
Linear acceleration sensitivity describes the gain of the sensor and can be determined e.g.
by applying 1 g acceleration to it. As the sensor can measure DC accelerations, this can be
done easily by pointing the axis of interest towards the center of the earth, noting the output
value, rotating the sensor by 180 degrees (pointing to the sky) and noting the output value
again. By doing so, ±1 g acceleration is applied to the sensor. Subtracting the larger output
value from the smaller one, and dividing the result by 2, leads to the actual sensitivity of the
sensor. This value changes very little over temperature and also time. The sensitivity
tolerance describes the range of sensitivities of a large population of sensors.
Angular rate sensor sensitivity
An angular rate gyroscope is a device that produces a positive-going digital output for
counter-clockwise rotation around the sensitive axis considered. Sensitivity describes the
gain of the sensor and can be determined by applying a defined angular velocity to it. This
value changes very little over temperature and time.
[attachment=45192]
Features
■ 3 acceleration channels, 3 angular rate
channels, 3 magnetic field channels
■ ±2/±4/±8/±16 g dynamically selectable linear
acceleration full-scale
■ ±2/±4/±8/±12 gauss dynamically selectable
magnetic full-scale
■ ±250/±500/±2000 dps dynamically selectable
angular rate full-scale
■ 16-bit data output
■ SPI / I2C serial interfaces
■ Analog supply voltage 2.4 V to 3.6 V
■ Power-down mode / Low-power mode
■ Programmable interrupt generators
■ Embedded temperature sensor
■ Embedded FIFO
■ ECOPACK® RoHS and “Green” compliant
Applications
■ Indoor navigation
■ Smart user interface
■ Advanced gesture recognition
■ Gaming and virtual reality input device
■ Display/map orientation and browsing
■ eCompass
■ Position and motion detection functions
■ Click/double click recognition
■ Intelligent power saving for handheld devices
Absolute maximum ratings
Stresses above those listed as “absolute maximum ratings” may cause permanent damage
to the device. This is a stress rating only and functional operation of the device under these
conditions is not implied. Exposure to maximum rating conditions for extended periods may
affect device reliability
Sensitivity
Linear acceleration sensor sensitivity
Linear acceleration sensitivity describes the gain of the sensor and can be determined e.g.
by applying 1 g acceleration to it. As the sensor can measure DC accelerations, this can be
done easily by pointing the axis of interest towards the center of the earth, noting the output
value, rotating the sensor by 180 degrees (pointing to the sky) and noting the output value
again. By doing so, ±1 g acceleration is applied to the sensor. Subtracting the larger output
value from the smaller one, and dividing the result by 2, leads to the actual sensitivity of the
sensor. This value changes very little over temperature and also time. The sensitivity
tolerance describes the range of sensitivities of a large population of sensors.
Angular rate sensor sensitivity
An angular rate gyroscope is a device that produces a positive-going digital output for
counter-clockwise rotation around the sensitive axis considered. Sensitivity describes the
gain of the sensor and can be determined by applying a defined angular velocity to it. This
value changes very little over temperature and time.