How to setting Polling rate of accelerometer in Python Kivy?

Question

everyone! I write program for reading data from accelerometer in android device, but i can't setting Polling rate, what to do? Is there an example?

My Code:

def do_toggle(self):
    try:
        if not self.sensorEnabled:
            accelerometer.enable()
            Clock.schedule_interval(self.get_acceleration, 0.0000001)

            self.sensorEnabled = True
            self.ids.toggle_button.text = "Stop"
        else:
            accelerometer.disable()
            Clock.unschedule(self.get_acceleration)

            self.sensorEnabled = False
            self.ids.toggle_button.text = "Start"
    except NotImplementedError:
        import traceback
        traceback.print_exc()
        status = "Accelerometer is not implemented for your platform"
        self.ids.accel_status.text = status