Health Monitoring for Coated Steel Belts in an Elevator System

Table 1

Data of fatigued belts according to different sections.

Segment no.	I	II	III	IV	V	Tot. or aver.
Length 𝐿 (m)	2.279	0.478	0.461	0.486	1.837	5.541
Resistance 𝑅 (mΩ)	217.3	46.5	48.3	47.8	175.2	535.1
Pre-fatigued 𝑅0𝑖 (mΩ)	216.1	45.3	43.7	46.1	174.2	525.4
Measured Δ𝑅 (mΩ)	1.2	1.2	4.6	1.7	1.0	9.7
Normalized 𝑅 (mΩ/m)	95.35	97.26	104.81	98.32	95.37	96.57
Measured Δ𝑅/𝑅0 (%)	0.56	2.65	10.53	3.69	0.57	1.85
Inferred Δ𝑅 (mΩ)	—	1.41	4.59	1.44	—	7.44
Inferred Damage 𝐷𝑡 (%)	—	3.03	9.51	3.03	—	—
Condition	𝑅0 = 94.83 mΩ/m at temperature 𝑇0 (26°C).