Vibrating resonator inertial rotation sensor
View Patent ↗The inertial rotation sensor comprising a vibrating resonator associated with transducers defining a pair of control channels and a pair of detection channels, preferably comprises a single multiplexer member for all of the channels, the multiplexer member being associated with a processing unit generating cycles comprising control action times on each control channel followed by detection action times on each detection channel, with two succession action times being separated by a relaxation time.
1. An inertial rotation sensor comprising a vibrating resonator associated with transducers defining a pair of control channels and a pair of detection channels, the sensor including a multiplexer member for the pair of control channels and a multiplexer member for the pair of detection channels, and a single processing system associated with each multiplexer member,
wherein the multiplexer member associates both pairs of channels with a single processing unit, and
wherein the processing unit comprises a processing system having a control branch with an analog-to-digital converter and a detection branch with a very high gain corrector member associated with an analog-to-digital converter, and means for associating the control branch with the detection branch in a feedback loop.
2. The sensor according to claim 1 , including a processing unit generating relaxation times separating action times in such a manner that at least one detection action time is preceded by a relaxation time.
3. The sensor according to claim 2 , wherein the processing unit generates cycles comprising control action times on each of the control channels followed by detection action times on each of the detection channels.
4. The sensor according to claim 3 , wherein all of the action times are separated from one another by relaxation times.
5. The sensor according to claim 1 , wherein the control channels and the detection channels have transducers in common.