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Aerospace Electronics & Systems Division
CSIR-National Aerospace Laboratories
Bangalore-560017

MAV Microelectronics Lab


MAV (Micro Aerial Vehicle) Microelectronics Lab if part of Aerospace Electronics & Systems Division focused on work related to the Systems development for MAV/UAV class of vehicles. In the process of the infrastructure creation, a lab has been setup for the Auto Pilot development related to MAV activities. Major work centers are as follows:

Trinocular PCB Inspection

  • 40 to 160x Magnification
  • 20x Wide-Angle Eyepiece
  • Max Specimen Height: approx 120mm
  • Lighting: 12V 10W halogen bulb
  • Eye Sepration Adjustment: 57-75 mm
  • PC Interface
PCB_InspectionStation
RF_Analysis

RF Analysis

  • Frequency: 1MHz - 13,6 GHz
  • Handheld
  • RBW : 10Hz - 3 MHz (1-3-10 Sequence)
  • VBW : 1Hz - 3 MHz (1-3-10 Sequence)
  • DANL: +10 dBm (1 to 500 MHz)
  • DANL : +20 dBm (500 MHz to 13.6 GHz)
  • Connector and impedance: Type-N female, 50 Ω

High BW Signal Analysis

  • 4 Channel Mixed Signal Oscillscope
  • 4 GSa /s Real Time, Low Noise Flash A /D Converter
  • Time and Frequency Domain Analysis
  • Real-Time FFT (dBm, dBV, Vrms), up to 64 kPts
  • Trigerring (Auto, Normal, Single)
  • Serial Bus Trigger and Hardware accelerated Decode
    including List View. Options: I2C + SPI + UART/RS-232 (HOO10/HOO11), CAN + LIN (HOO12)
  • Automatic Search for user-defined Events
  • Pass/Fail Test based on Masks

HighBWSignalAnalysis

DigitalProtocolAnalysis

Digital Protocol Analysis

  • Length & Width: 3.12 inch (79.2mm)
  • Input voltage range: -0.9V to 6V
  • Available Sampling Rates: 250 kHz to 100 MHz
  • Sample Depth : Upto 10B Samples
  • Pulse-width measurement: +/- 10ns @ 100MHz, +/- 20ns @ 50MHz, +/- 40ns @ 25MHz, +/- 80ns @ 12.5MHz
  • Max Input Bandwidt : 25MHz square wave

GCS Integration and Test

  • Integration and Testing in Lab
  • Easy Modification and Implementation
  • Quick Parameter Tuning
  • RC and Communication Checking
  • Open Source and Custom GCS

GCS_TestStation

PressureChamber

Pressure Chamber Calibration Bench

  • Range: 0 to 15000 ft
  • Rate of Climb : 1000 ft/min
  • Input: 1013.25 mbar to 571.8 mbar
  • Custom Build Pressure chamber
  • Useful for Sensor Calibration used in MAVs
  • Data Logger and Anlaysis software
  • Small in footprint

Close Field Analysis

  • Different Frequency Band Near Field Probe Set
  • Electric and Magnetic Field Measurement
  • Spectrum Analyzer Interface
  • Hardware Level Checking for Interference

closeFieldAnalysis

Other facilities are listed below:

  • Sensor Integration and Test Station
  • Autopilot Development Station
  • RC Communication Test Station
  • Digital Rework Station
  • Engineering Tool Kits Station
  • Flight Control Test Station
  • Thermal Measurements Station

MAV_Lab


Pressure Sensor Calibration

The pressure has been calibrated using custom built pressure chamber as shown below. The ADTS unit from GE has been used for creating the pressure scenarios. The Specifications are as follows:

Parameter

Operating range

Resolution

Accuracy

Repeatability

Altitude

-609 to 18288 m (-2,000 to 60,000 ft)

0.30 m (1 ft)

0.91 m (3 ft) at sea level,
2.13 m at 9144 m (7 ft at 30,000 ft)
8.83 m at 18288 m (29 ft at 60,000 ft)

±0.30 m (±1 ft)
±0.60 m (±2 ft)
±1.82 m (±7 ft)

Static Sensor

35 to 1355 mbar abs (1 to 40 inHg)

0.01 mbar (0.0003 inHg)

 ±0.1 mbar
(±0.003 inHg)

±0.05 mbar
(±0.0015 inHg)

Airspeed

20 to 650 knots

0.1 kts

±0.5 kts at 50 kts

 ±0.4 kts

Airspeed (Qc)

0 to 2500 mbar diff (1 to 74 inHg)

0.01 mbar (0.0003 inHg)

±0.1% reading
±0.125 mbar

0.05 mbar rising to 0.17 mbar

Rate of Climb

0 to 1829 m/min (0 to 6000 ft/min)

0.30 m/min (1 ft/min)

±2% of value

±0.5% (measurement)

Mach

0.6 to 2.8

0.001

Better than 0.005

0.001 rising to 0.005

Engine Pressure Ratio (EPR)

0.1 to 10

0.001

Better than 0.005

 

MicroAltitudeChamber

 

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