Altimeters and Timers

Missile Works

RRC2- mini





Physical and Operational Features
·Small "Mini" footprint (just 1" wide x 3.15" long)... 29mm capable
·Virtually all SMD construction with silicon resin conformal coating to prevent corrosive BP residue damage
·Sea Level to 40,000 MSL Operational capability
·Individually chamber calibrated using our new "Heise" absolute pressure standard (0.001 PSI resolution)
·Full HIL/ETE (Hardware In the Loop/End-to-End) calibration to null out operational tolerances
·Dedicated "large screw" compression terminals with dedicated power switch connections
·Easy "2 hole" mounting with 4-40 hardware

Functional Features
·Interactive menu programming and operation via pushbuttons and LED's... NO DIP SWITCHES
·All User setpoints are stored in non-volatile EEPROM
·2 complete setpoint "profiles" are available by the flip of a switch for programming or flight ops
·All flight data is stored in non-volatile EEPROM for post-flight recall, even across power cycles
·Complete on-board diagnostic capability

User Setpoints
·Main AGL - adjustable from 300' to 3000' AGL in 100' increments
·Mach Inhibit - adjustable from 0 to 31 seconds in 1 second increments
·Drogue Delay - adjustable from 0 to 15 seconds in 1 second increments
·Main Delay - adjustable from 0 to 15 seconds in 1 second increments
·Deployment Mode - adjustable for Standard Dual Deploy / Apogee Only / Main Only
·Operations Mode - Enable/Disable Low-Freq chirping, Power-Up battery/setpoint chirp, and LV lockout
·2 complete "profiles" of setpoints are available... setup each profile for different flight regime

Post Flight "Log" Data
·Peak AGL elevation (feet)
·Peak Velocity (feet per second)
·Time to Apogee (in seconds)
·Launch counter (cumulative total flight count)

Diagnostic Features
·Battery voltage on demand (volts and 1/10th volts)
·Current MSL elevation (in feet)
·Continuity Input Test mode
·MosFET Output Test mode

Standard low current setup:




High current setup:
(You could light two igniters at the same time with higher current.)

         

Perfectflite


StratoLogger


      

This versatile, easy to use altimeter audibly reports your rocket's peak altitude and maximum velocity after flight via a sequence of beeps.  Two outputs are provided for deploying a small chute at apogee to minimize drift and a larger chute closer to the ground to slow your rocket for a gentle touchdown.  Main chute deployment altitude is adjustable from 100 feet to 9,999 feet in 1 foot increments with the computer interface or 100 foot increments without.  Nine user-defined presets make changing the settings in the field quick and easy.

The StratoLogger collects flight data (altitude, temperature, and battery voltage) at a rate of 20 samples per second throughout the flight and stores them for later download to a computer.  It retains data from the most recent 31 flights (up to 9 minutes per flight) even with power removed.  The optional DT3U data transfer kit includes software for graphing and printing a wide range of characteristics including altitude, velocity, and more.

As its name implies, the StratoLogger is capable of recording flights of up to 100,000 foot altitude (well into the stratosphere) with industry-leading precision and accuracy.

miniAlt/WD Altimeter



    


This versatile, easy to use altimeter audibly reports your rocket's peak altitude after flight via a sequence of beeps. It can also control the ejection of your parachutes; one at apogee and an optional second larger chute can be deployed at a lower altitude to minimize drift on windy days. The most recent flight curve (altitude vs. time) can be downloaded to your computer using the optional data transfer kit.


Featherweight Altimeters


The Raven2
See its first used on 2/25 and 2/26 under single-motor projects, Mad Dog)

• 400 Hz axial accelerometer, +/- 70 Gs
• 200 Hz lateral accelerometer, +/- 35 Gs
• 250 G single-axis accelerometer available as an option
• 20 Hz Baro data, +/- 0.3% accuracy!
• 20 Hz voltage on each of 4 deployment outputs
• 40 Hz output current
• 20 Hz high-precision temperature sensor
• 20 Hz for All flight events used for deployment logic.
• Flight counter
• All output program settings
• Accelerometer calibrations used during the flight
• Pad altitude ASL
• 8 minutes of high-rate data+ 45 minutes for each flight.  The newest 5 flights are stored.  (New higher capacity!)

4 high-current, programmable outputs:

• 9-Amp outputs compatible with all batteries from a single Li-Poly cell to a 20V pack. (altimeter power input up to 10V)
• Default output settings:
  
  • Mach-immune, accelerometer-based apogee deployment
  • Main deployment at 700 feet
  • Baro-based backup apogee deployment
  • Backup deployment 1.5 seconds after main deployment
• Additional user-selectable output logic options can be selected in combination for each output:
  • Accel > user value 1 (ignition detection)
  • Accel < user value (burnout detection)
  • Filtered pressure increasing (baro apogee detection)
  • Filtered pressure decreasing (for staging)
  • Time > user value (simple timer)
  • Time < user value (vertical staging check)
  • Altitude < user value 1 (low altitude deploy)
  • Altitude > user value 2  (vertical staging check)
  • Altitude < user value 3 (landing detection) (New!)
  • Velocity < 0 mph (apogee detection)
  • Velocity < user value 1 (Mach inhibit)
  • Velocity > user value 2 (staging input)
  • Time delay after other conditions met (backup)
  See FIP page for programming screenshot
• All of the above flight events are recorded at 20 Hz in the Flight Event Register, great for verification of the altimeter functions in test flights or simulated flights.
• Screw terminal with 0.1" spacing

Timers

Missile Works

Pet2+ Dual Event Timer

  



The PET2+ sets a new performance standard with the most advanced and versatile dual event timer functions available in High Power Rocketry today. It's the perfect choice for staging, airstarts, or other specialized timing applications from the simplest to the most complex projects.

Functional Features
· 2 completely independent programmable on-board timers
· 3-axis orientation provides the most flexible mounting options for your project
· 3 programmable time bases
· 4 programmable trigger events
· Break-wire input circuit interlocks with any trigger event to provide a fail-safe permissive
· Independently programmable G-range triggering
· Programmable event output pulse duration
· One-shot or Repeat Interval timer operations
· Off-axis and Auto Orientation detection operation
· Interactive menu programming and operation via pushbuttons and LED's... NO DIP SWITCHES
· All User setpoints are stored in non-volatile EEPROM
· Complete on-board diagnostic capability with POST

Physical and Operational Features
· Small "Mini" footprint (just 1" wide x 3.15" long)... 29mm capable
· Virtually all SMD construction with silicon resin conformal coating to prevent corrosive BP residue damage
· Full HIL/ETE (Hardware In the Loop/End-to-End) calibration to null out operational tolerances
· Dedicated "large screw" compression terminals with dedicated power switch connections
· Easy "2 hole" mounting with 4-40 hardware

Timer1 and Timer 2 Setpoints
· MEIG trigger level - adjustable from 2 to 5 G's in 1 G increments
· SEIG trigger level - adjustable from 2 to 5 G's in 1 G increments
· Inertial Trigger Event - MEIG / MECO / SEIG / SECO
· Trigger Integration Time - adjustable from 0.1 to 3 seconds in 0.1 second increments
· Break-wire Function - N/A, Exclusive Trigger, Interlock Trigger
· Timer Interval - adjustable from 1 to 100 (Time Base Dependent)
· Time Base - Fast (0.1 sec) / Slow (1 sec) / Extra Slow (2 sec)
· Timer Operation - One-shot / Repeat

Global Setpoints
· Intertial Trigger Axis - X-axis / Y-axis / Z-axis / Auto Detect
· Off-Axis / Off Calibration - adjustable to well over +/- 20 degrees
· Piezo Tone - High Tone / Low Tone

Diagnostic Features
·Continuity Input Test mode
·MosFET Output Test mode

Manual



Perfectflite

miniTimer3G


 

• Easy to set delay time is field adjustable from 0.6 seconds to over 60 seconds in 0.1 second steps.
• Beeper provides audible igniter continuity check, powerup reporting of current delay time setting, and post-flight siren to aid in rocket location.
• High current capacity allows use of multiple igniters in clusters. Brown-out protection during firing allows 100% power delivery to igniter without worry of reset.
• High accuracy digital time setting is retained in EEPROM memory even with power removed.
• Uses secure screw-down terminal blocks for battery and igniter.
• Includes on-board G switch.
• Automatic trigger sense configuration (normally open/normally closed) allows use with G-switch, breakwire, pull-pin, etc.
• False trigger filtering -- trigger condition must be met for 0.5 second in order to start timing cycle.
• Rugged SMD construction, stringent QC testing, and internal self-diagnostics assure reliability.
• Measures just 1.5"L x 0.9"W x 0.5"H, fits in 24 mm tube, weighs 0.24 oz. Maximum current: 97.6A for 1ms, 33.9A for 1 second.