Sensor sub-systems
 

1. Linear acceleration sensors (four axis)

   
   

   Linear acceleration sensor module

   
   

   Range (module):	-1.2 .. +1.2	g	per axis (adjustable, max. +/-2 g)
   Sensitivity (sensor, minimal):	140	mV/g
   Sensitivity (sensor, typical):	167	mV/g

    

2. Compass

   
   

   Compass module

   
   

   Accuracy:	2	°
   Resolution:	1	°
   Sampling rate:	10	Hz
   Hard iron calibration

    

3. Pressure

   
   

   Pressure sensor module

   
   

   Measurable pressure:	5	psi	(3.5 m diving depth)
   Maximum pressure:	20	psi	(14 m diving depth)

    

4. Sonar

   
   

   Sonar sensor module

   
   

   Base frequency:	200	kHz
   Sampling rate:	6	Hz

    

5. Long wave radio

   
   

   Long wave radio module

   
   

   Long wave radio antennas [sending antenna fits under the main board]

   
   

   Carrier frequency:	122	kHz
   Data rate:	1024-8192	bits/s
   Range:	< 6	m

    

6. Directed, modulated light

   
   

   [picture to come]

   Modulated light module

   
   

   no specs available at this time

    

    

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   Contact for the Serafina project: Uwe R. Zimmer
   Site last modified: Thursday, 2 November 2006