Crossbow ProductsCrossbow Products

Presented by:Presented by:

Stephen JusticeStephen Justice

TopicsTopics

Brief view of gyrosBrief view of gyros A look at MEMSA look at MEMS The two types of sensors Crossbow The two types of sensors Crossbow

offersoffers Aviation gyroscopesAviation gyroscopes Tilt Sensors – Analog and digitalTilt Sensors – Analog and digital Which product would be suitable for Which product would be suitable for

this projectthis project

GyrosGyros

Three gyro instrumentsThree gyro instruments Attitude Indicator Attitude Indicator Directional Gyro Directional Gyro Turn and Bank Indicator Turn and Bank Indicator

Mechanical gyroMechanical gyro

The gyros that Crossbow The gyros that Crossbow manufactures use a technology manufactures use a technology called MEMScalled MEMS

MEMS is Micro-Electro-Mechanical MEMS is Micro-Electro-Mechanical SensorsSensors

These sensors are on the silicon These sensors are on the silicon and provide much better and provide much better calculationscalculations

Products that can be Products that can be used for the projectused for the project GyrosGyros AHRS500AHRS500 The gyros The gyros

provide data on provide data on all three axisall three axis

Tilt SensorsTilt Sensors CXTDCXTD CXTCXT CXTLCXTL The tilt sensor The tilt sensor

only supply data only supply data on 2 axis and use on 2 axis and use gravity as gravity as referencereference

The Crossbow Solid-State GyroThe Crossbow Solid-State GyroAHRS500/400AHRS500/400Attitude and Heading Attitude and Heading Reference SystemsReference Systems

Roll, Pitch and Heading Angle inRoll, Pitch and Heading Angle in Dynamic EnvironmentsDynamic Environments Enhanced Performance KalmanEnhanced Performance Kalman Filter AlgorithmFilter Algorithm No External “Aiding” RequiredNo External “Aiding” Required Designed to Meet FAA TSO C4cDesigned to Meet FAA TSO C4c and TSO C6d Requirementsand TSO C6d Requirements Avionics-style Enclosure DesignedAvionics-style Enclosure Designed to DO160D Requirementsto DO160D Requirements Continuous BIT (Built-in Test)Continuous BIT (Built-in Test)

DIGITAL TILT & DIGITAL TILT & ACCELERATION SENSORACCELERATION SENSOR

CXTDCXTD

Roll and Pitch Angle Roll and Pitch Angle MeasurementMeasurement

at High Accuracyat High Accuracy 360° Range360° Range 3-Axis Digital Acceleration 3-Axis Digital Acceleration

OutputOutput Fully Temperature CalibratedFully Temperature Calibrated

SOLID-STATE, PRECISION SOLID-STATE, PRECISION DIGITAL INCLINOMETER AND DIGITAL INCLINOMETER AND DIGITAL 3-AXIS DIGITAL 3-AXIS ACCELEROMETERACCELEROMETER

ApplicationsApplications

Seismic MonitoringSeismic Monitoring Structural MonitoringStructural Monitoring High-Accuracy TiltHigh-Accuracy Tilt

Analog Tilt SensorsAnalog Tilt Sensors

Small, Low-Cost, RuggedSmall, Low-Cost, Rugged Rapid ResponseRapid Response ± 75° Range± 75° Range Fully Conditioned Analog OutputsFully Conditioned Analog Outputs

ApplicationsApplications Scissor LiftsScissor Lifts Static PlatformsStatic Platforms Survey Leveling EquipmentSurvey Leveling Equipment Laser LevelingLaser Leveling

ANALOG TILT SENSOR, ANALOG TILT SENSOR, SINGLE / DUAL AXISSINGLE / DUAL AXIS

LOW RANGE, ANALOG LOW RANGE, ANALOG TILT SENSOR, SINGLE / TILT SENSOR, SINGLE / DUAL AXISDUAL AXIS

CostCost

AHRS500 is going to be expensive AHRS500 is going to be expensive (no price could be found on the (no price could be found on the website)website)

The tilt sensors range from $140-The tilt sensors range from $140-$230$230

Size ComparisonSize Comparison

AHRS500Gyro

Digital tilt sensor

Analog tilt sensor

The AHRS500 would be the best The AHRS500 would be the best choice because of the functions it choice because of the functions it provides and its serial interface, provides and its serial interface, but it might cost way too muchbut it might cost way too much

The tilt sensors would be cost The tilt sensors would be cost effective but there was no effective but there was no indication if they would work at indication if they would work at altitudealtitude

SummarySummary

Gyros in generalGyros in general The MEMS technologyThe MEMS technology A look at the aviation gyroA look at the aviation gyro Analog and Digital Tilt sensorsAnalog and Digital Tilt sensors