Green: Field is between 60-30µT
Blue: Field is below 30µT
Red: Field is above 60µT
The black Line indicates the local field-line through the display ;)
This application can be used for a metal detector etc.
Measurement items are following four.
Intensity: Magnetic field strength in consideration of all of X-axis, Y-axis, and Z-axis ingredient
x-axis: Magnetic field strength of X-axis
y-axis: Magnetic field strength of Y-axis
z-axis: Magnetic field strength of Z-axis
The X axis is horizontal and points to the right, the Y axis is vertical and points up and the Z axis points towards the outside of the front face of the screen.
Unit is micro tesla[uT].
Simple fact: earth natural magnetic field is between 30 and 70 u Tesla (350 to 700 m Gauss). 1 u Tesla = 10 m Gauss.
Is your home EMF hazards free? You can buy a Gauss meter to measue the accurate value. However, your smart phone can also be converted as a simple Gauss meter.
This applicaiton will sound the alarm once the abnormal EMF field is detected. The screen color will also turn from health green to danger red. So scan your home now...
Very simple user interface, just run the application and you'll get Qible direction instantaneously.
To get the best accuracy, hold your device flat with its screen facing sky and make sure there is no ferrous metal objects and electromagnetic fields nearby.
The application uses Compass, GPS and Magnetic sensors along with "Spherical law of cosines" and "Great-circle distance" to obtain qibla direction.
1. The North Magnetic Pole moves over time due to magnetic changes in the Earth's core. My Qibla uses the most recent location of the north magnetic pole.
2. The Compass sensor readings could be incorrect in the presence of external magnetic fields nearby, My Qibla provides warnings and instructions to obtain the most accurate Qibla direction.
3. My Qibla uses your last known location to obtain direction quickly and then invokes more precise location from GPS every minute.