The per-user force calibration data generator 1212 receives the subjective level of force from the subjective magnitude input device 1208 and the sensor voltage input 1210 for multiple pressure sensors and at multiple levels of subjective force, and generates a set of calibration data 1220 for the user undergoing the force calibration process described herein. The per-user force calibration data generator 1212 includes a force-voltage logger 1214, a force voltage database 1216, a calibration data generator 1218, and the output calibration data 1220. The calibration data 1220 may be used to calibrate a haptic device, such as haptic device 1224.
The force-voltage logger 1214 logs the input values of the subjective level of force from the subjective magnitude input device 1208 and the corresponding sensor voltage inputs 1210. This may occur each time a value is entered into the subjective magnitude input device 1208. The force-voltage logger 1214 stores the associations between the received subjective level of force and the sensor voltage input for the corresponding pressure sensor to the force voltage database 1216.