Hi @fzg7919
Please, check this post:
You can import it as follow:
from omni.isaac.kit import SimulationApp
kit = SimulationApp({"headless": True})
from omni.isaac.imu_sensor import _imu_sensor
_is = _imu_sensor.acquire_imu_sensor_interface()
Also, check the SimulationApp doc:
https://docs.omniverse.nvidia.com/py/isaacsim/source/extensions/omni.isaac.kit/docs/index.html