Evaluation of Circle Diameter by Distributed Tactile Information in Active Tracing

Table 1

Width of voltage distribution (number of nonzero volt element).

Number of measurement	𝜙10	𝜙15	𝜙20	𝜙25	𝜙30	𝜙35	𝜙40
𝑁=1	3	4	4	5	5	5	5
𝑁=2	9	9	9	10	10	11	11
𝑁=4	17	17	18	18	19	20	20
𝑁=8	34	36	37	39	41	42	44