Can any explain the differnce between…
Can any explain the differnce between…
by plingboot
Sun Oct 29, 2006 8:53 am
Hi,
As the title says, can anyone explain the difference between the following sensors and what they are best suited for etc?
1. GWS Piezo Gyro
2. Robonova tilt sensor
3. Robonova 2-axis accelometer
As the title says, can anyone explain the difference between the following sensors and what they are best suited for etc?
1. GWS Piezo Gyro
2. Robonova tilt sensor
3. Robonova 2-axis accelometer
by Bullit
Sun Oct 29, 2006 12:34 pm
All this information can be found by searching this forum.
The gyro is a rate sensor. Robobasic is designed to work with up to 4 gyros for different axes. A gyro is useful for keeping a robot stable at one position. Because robobasic supports gyros directly it can adjust many servos close to real time. Many people use one or two of these to make their robot more stable when walking and less likely to get knocked over in a fight. You'll find lots of examples and videos on this forum.
The tilt sensor is a simple sensor that can tell the RN-1 if it has fallen over and what its orientation is. This is very useful to have a tilt routine that will have your robot standup up correctly if its fallen or knocked over. Some are one axis most are 2 axis. Mostly for the RN-1 you only need one. Is it on its back or front? It does not measure degree of tilt just absolute orientation.
A 2-axis accelerometer can do the same thing as the tilt sensor except it measures degree of tilt. Most people use it for just a tilt sensor as they are inexpensive. The accelerometer basically measures the direction of gravity and therefore can be useful to adjust for degree of tilt. For instance if your robot is walking up an incline. Unfortunately due to the performance of robobasic this sensor cannot be read very quickly so it is not as realtime as the gyro.
I hope this helps. You should search the these forums for more inforation.
The gyro is a rate sensor. Robobasic is designed to work with up to 4 gyros for different axes. A gyro is useful for keeping a robot stable at one position. Because robobasic supports gyros directly it can adjust many servos close to real time. Many people use one or two of these to make their robot more stable when walking and less likely to get knocked over in a fight. You'll find lots of examples and videos on this forum.
The tilt sensor is a simple sensor that can tell the RN-1 if it has fallen over and what its orientation is. This is very useful to have a tilt routine that will have your robot standup up correctly if its fallen or knocked over. Some are one axis most are 2 axis. Mostly for the RN-1 you only need one. Is it on its back or front? It does not measure degree of tilt just absolute orientation.
A 2-axis accelerometer can do the same thing as the tilt sensor except it measures degree of tilt. Most people use it for just a tilt sensor as they are inexpensive. The accelerometer basically measures the direction of gravity and therefore can be useful to adjust for degree of tilt. For instance if your robot is walking up an incline. Unfortunately due to the performance of robobasic this sensor cannot be read very quickly so it is not as realtime as the gyro.
I hope this helps. You should search the these forums for more inforation.
