A Highly Reliable Embedded Optical Torque Sensor Based on Flexure Spring

Table 5

Experiment data.

Torque (Nm)	Minimum (V)	Maximum (V)	Average (V)	Calculate (V)	Error	% error
0	4.40	4.43	4.4118	4.3250	−0.0868	2.87
0.098	4.05	4.12	4.0800	4.0231	−0.0569	1.88
0.196	3.70	3.75	3.7190	3.7211	0.0021	0.70
0.294	3.35	3.40	3.3730	3.4191	0.0461	1.53
0.392	3.04	3.08	3.0586	3.1171	0.0585	1.94
0.49	2.73	2.77	2.7496	2.8151	0.0655	2.17
0.588	2.43	2.47	2.4494	2.5131	0.0637	2.11
0.686	2.15	2.19	2.1654	2.2112	0.0458	1.52
0.784	1.89	1.92	1.8998	1.9092	0.0094	0.31
0.882	1.64	1.67	1.6560	1.6072	−0.0488	1.62
0.98	1.39	1.42	1.4038	1.3052	−0.0986	3.27