SELF-CALIBRATING VIBRATION SENSOR
First Claim
Patent Images
1. A system comprising:
- a vibration sensor having an antenna to transmit and receive RF energy;
a self calibration actuator to vibrate the antenna in a direction generally normal to the antenna surface; and
a calibration module to receive responses received by the antenna to calibrate the vibration sensor.
1 Assignment
0 Petitions
Accused Products
Abstract
An antenna in a radar sensor is vibrated at a known frequency and velocity in a direction generally normal to the antenna surface. A response received by the antenna is used to scale or calibrate sensor responses at frequencies of interest.
25 Citations
20 Claims
-
1. A system comprising:
-
a vibration sensor having an antenna to transmit and receive RF energy; a self calibration actuator to vibrate the antenna in a direction generally normal to the antenna surface; and a calibration module to receive responses received by the antenna to calibrate the vibration sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method comprising:
-
transmitting and receiving RF energy from an antenna of an RF vibration sensor toward a target; moving the antenna orthogonal to the target at a known velocity; and adjusting a calibration of the RF vibration sensor responsive to received signals while moving the antenna. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 19, 20)
-
-
18. A computer readable storage device having instructions stored thereon to cause a computer system to control a method, the method comprising:
-
transmitting and receiving RF energy from an antenna of a radar based vibration sensor toward a vibrating target; vibrating the antenna orthogonal to the target at a known frequency and displacement; and adjusting a calibration of the radar vibration sensor responsive to received signals.
-
Specification