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Raven User’s Manual 

Updated for the Raven4 altimeter 

January 19 2019 

 

Table of Contents 

Table of Contents ................................................................................................................ 1

 

Mounting and Installation: .................................................................................................. 2

 

Deployment Connections: ............................................................................................... 2

 

Power: ............................................................................................................................. 3

 

High G flights: ................................................................................................................ 3

 

Operation in the Field ......................................................................................................... 3

 

Pre-flight operation ......................................................................................................... 3

 

Liftoff Detection and flight ............................................................................................. 4

 

Post-flight operation........................................................................................................ 5

 

Computer-Attached Operations .......................................................................................... 5

 

Featherweight Interface Program (FIP) Installation: ...................................................... 5

 

Connecting to the Raven using the FIP: ......................................................................... 6

 

Raven Status and Data Download ................................................................................... 6

 

Configuring the Raven using the FIP: ............................................................................ 7

 

Deployment triggers details and examples: .................................................................... 8

 

Calibrating the accelerometer: ...................................................................................... 10

 

Running a flight simulation .......................................................................................... 10

 

Viewing the data ........................................................................................................... 11

 

Calibration and Accuracy: ................................................................................................ 12

 

Specifications: ................................................................................................................... 12

 

Contact Information: ......................................................................................................... 12

 

 

 

 

Содержание Raven3

Страница 1: ...ff Detection and flight 4 Post flight operation 5 Computer Attached Operations 5 Featherweight Interface Program FIP Installation 5 Connecting to the Raven using the FIP 6 Raven Status and Data Downlo...

Страница 2: ...description of the default program for the 4 outputs is given in the deployment programming section of this document Caution Do not use this or any other altimeter for deployments until you have perf...

Страница 3: ...mers love the Featherweight screw switch because of its reliability tiny size and convenient mounting terminals The screw head wipes and preloads the contacts with every operation The Featherweight ma...

Страница 4: ...rocket is dropped a short distance the Raven will ignore the subsequent contact to avoid premature liftoff detection Despite these features it is possible for the Raven to misinterpret normal handling...

Страница 5: ...atches for the barometric readings to become constant to detect landing After landing the altitude at apogee will be beeped out once and then the red LED will flash once per second These features save...

Страница 6: ...altimeter model and the comm port to which the Raven is connected If multiple comm ports show up in the dialog box the highest numbered one will probably be the one with the Raven connected to it The...

Страница 7: ...ommand Configuring the Raven using the FIP To program and verify the deployment options programmed into your Raven click the Configure tab The logic used for each deployment output is represented as a...

Страница 8: ...ty 0 feet second used for the backup apogee deployment channel This trigger is true when the upward velocity has stopped and the rocket is starting to fall The Raven senses the acceleration and subtra...

Страница 9: ...ser timer value and Time user timer value This condition is true when the elapsed time from liftoff detection is less than or greater than the user settable timer threshold TVal TVal can be set from 0...

Страница 10: ...e adding 1 to the burnout count When the burnout counter is greater than or equal to the user burnout count for that output channel the trigger will be true Unlike the burnout counter used in other al...

Страница 11: ...nload can be opened for viewing using the File Open command The default set of measurements shows the altitude above the pad in feet and the axial accelerometer trace Additional traces can be added to...

Страница 12: ...oximations The standard atmosphere model however is an approximation to typical conditions for mid latitude locations It assumes a temperature profile that is likely to be colder than typical rocketry...

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