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Implemented airspeed measurement. Untested

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Lorenz Meier
2013-01-21 23:45:16 +01:00
parent 48e497e406
commit 2ebb1812f1
6 changed files with 95 additions and 39 deletions
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apps/systemlib/conversions.c
+1 -5
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@@ -42,10 +42,6 @@
#include "conversions.h"
#define air_gas_constant 8.31432f
#define air_density_sea_level 1.225f
#define absolute_null_kelvin 273.15f
int16_t
int16_t_from_bytes(uint8_t bytes[])
{
@@ -154,5 +150,5 @@ void quat2rot(const float Q[4], float R[9])
float get_air_density(float static_pressure, float temperature_celsius)
{
return static_pressure / (air_gas_constant * (temperature_celsius + absolute_null_kelvin));
return static_pressure / (CONSTANTS_AIR_GAS_CONST * (temperature_celsius + CONSTANTS_ABSOLUTE_NULL_KELVIN));
}