Differences

This shows you the differences between two versions of the page.

--- projects:storm [2015/01/02 12:59] – storm
+++ projects:storm [2015/03/10 20:45] (current) – storm
@@ Line 16: / Line 16: @@
   * (mainly) I2C as communication protocol between modules
-  (System overview image)
+ {{ :projects:storm:overview.png?direct&300 |}}
@@ Line 38: / Line 38: @@
   * NavSpark Microcontroller (originalle an Indigogo Campaign)
+    * Datasheet: [[http://navspark.mybigcommerce.com/content/NavSpark-User-Guide_rev0.6.pdf|http://navspark.mybigcommerce.com/content/NavSpark-User-Guide_rev0.6.pdf]]
   * 100MHz 32bit LEON3 Sparc-V8
   * Full GPS support with external battery
@@ Line 43: / Line 44: @@
   * P1PPS time reference with ± 10nsec accuracy
   * Software: (Link)
- (Photo)
 === Inertial measurement unit (IMU) and Telemetrie Module ===
@@ Line 64: / Line 63: @@
   * Radiometrix NTX2
     * Datasheet: [[http://www.radiometrix.com/files/additional/ntx2nrx2.pdf|www.radiometrix.com/files/additional/ntx2nrx2.pdf]]
-  * T.B.D.: Quarter wave antenna with solid or wire ground
+  * Quarter wave antenna with four radials
+    * See [[projects:storm:antenna|tuning description]]
 == Storage ==
@@ Line 71: / Line 71: @@
   * 1 GB micro SD-Card interfaced via SPI
- (Photo)
+{{ :projects:storm:bottom.jpg?direct&300 |}}
+{{ :projects:storm:top.jpg?direct&300 |}}
 === Sensor Fusion Board (SFB) ===
@@ Line 105: / Line 106: @@
 At earths surface about half of the natural ionising radiation originates from radioactive isotopes in the ground. The other half is a result of charged particles hitting the earths atmosphere (so called cosmic rays).
 As cosmics rays interact with nuclei in the atmosphere extensive air showers with hunderts of secondary particles are created (search for Heitler model to get a rough idea), which subsequently decay as they propagate towards the surface.
-Going up in the atmosphere the dose rate increases, as more and more secondary particles are present. At a height of around 20 kms, at the so called Pfotzer maximum
+Going up in the atmosphere the dose rate increases, as more and more secondary particles are present. At a height of around 20 kms, at the so called Pfotzer maximum, the combined dose rate of primary and secondary particles reaches its maximum. Above that height the amount of ionising radiation decreases again.
-=== Options ===
+=== Detection Options ===
   * PMT (Photomultipler) with Scintillator:
@@ Line 157: / Line 158: @@
   * ATTiny acts as I2C slave against FCU
- (Photo and plots)
+{{ :projects:storm:breadboard.jpg?direct&300 |}}
+{{ :projects:storm:resolution.png?direct&300 |}}
 === Flight module ===
@@ Line 207: / Line 209: @@
 T.B.D.
-===== Ballon and Parachute =====
+===== Balloon and Parachute =====
-T.B.D.
+  * Balloon: Totex TA-1000
+  * Parachute: Spherachute Balloon Parachute  - 54in
+both from www.randomengineering.co.uk
 ===== Radar reflector =====
-T.B.D.
+mm wide, build from Balsa wood, coated with aluminium tape
+weighs in at around 250g, so a little on the heavy side
+{{ :projects:radar_reflector.jpg?direct&300 |}}
 ===== Chase car =====
@@ Line 220: / Line 228: @@
   * Custom QFH antenna - T.B.D.
+  * HABAmp 434MHz/70cm http://ava.upuaut.net/store/index.php?route=product/product&product_id=83
   * FunCube Dongle
-    * Datasheet: (Link)
   * DVB-T Dongle
-    * Datasheet: (Link)
 ===== Red Tape =====
@@ Line 229: / Line 236: @@
   * in Germany I need a Flugverkehrskontrollfreigabe (liftoff permission) from the Deutsche Flugsicherung (German airspace control)
   * 2 weeks lead time
-  * this includes the need for a 1 day aviation insurance (~60€)
+  * this includes the need for a 1 day aviation insurance (~60€))