Crossbow Products Presented by: Stephen Justice

Topics Brief view of gyros Brief view of gyros A look at MEMS A look at MEMS The two types of sensors Crossbow offers The two types of sensors Crossbow offers Aviation gyroscopes Aviation gyroscopes Tilt Sensors – Analog and digital Tilt Sensors – Analog and digital Which product would be suitable for this project Which product would be suitable for this project

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

Mechanical gyro

The gyros that Crossbow manufactures use a technology called MEMS The gyros that Crossbow manufactures use a technology called MEMS MEMS is Micro-Electro-Mechanical Sensors MEMS is Micro-Electro-Mechanical Sensors These sensors are on the silicon and provide much better calculations These sensors are on the silicon and provide much better calculations

Products that can be used for the project Products that can be used for the project Gyros  AHRS500  The gyros provide data on all three axis Tilt Sensors  CXTD  CXT  CXTL  The tilt sensor only supply data on 2 axis and use gravity as reference

The Crossbow Solid-State Gyro AHRS500/400 Attitude and Heading Reference Systems

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

DIGITAL TILT & ACCELERATION SENSOR

CXTD Roll and Pitch Angle Measurement Roll and Pitch Angle Measurement at High Accuracy 360° Range 360° Range 3-Axis Digital Acceleration Output 3-Axis Digital Acceleration Output Fully Temperature Calibrated Fully Temperature Calibrated

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

Applications Seismic Monitoring Seismic Monitoring Structural Monitoring Structural Monitoring High-Accuracy Tilt High-Accuracy Tilt

Analog Tilt Sensors Small, Low-Cost, Rugged Small, Low-Cost, Rugged Rapid Response Rapid Response ± 75° Range ± 75° Range Fully Conditioned Analog Outputs Fully Conditioned Analog Outputs Applications Applications Scissor Lifts Scissor Lifts Static Platforms Static Platforms Survey Leveling Equipment Survey Leveling Equipment Laser Leveling Laser Leveling

ANALOG TILT SENSOR, SINGLE / DUAL AXIS

LOW RANGE, ANALOG TILT SENSOR, SINGLE / DUAL AXIS

Cost AHRS500 is going to be expensive (no price could be found on the website) AHRS500 is going to be expensive (no price could be found on the website) The tilt sensors range from $140-$230 The tilt sensors range from $140-$230

Size Comparison AHRS500 Gyro Digital tilt sensor Analog tilt sensor

The AHRS500 would be the best choice because of the functions it provides and its serial interface, but it might cost way too much The AHRS500 would be the best choice because of the functions it provides and its serial interface, but it might cost way too much The tilt sensors would be cost effective but there was no indication if they would work at altitude The tilt sensors would be cost effective but there was no indication if they would work at altitude

Summary Gyros in general Gyros in general The MEMS technology The MEMS technology A look at the aviation gyro A look at the aviation gyro Analog and Digital Tilt sensors Analog and Digital Tilt sensors