![Figure 3](/ServeContent?url=http%3A%2F%2Fdbm.sagepub.com%2Fcontent%2F1%2F1%2F496906%2FF3.medium.gif)
Figure 3
Typical force versus displacement curves for spring-type (a) and magnetic (b) activation methods.
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Typical force versus displacement curves for spring-type (a) and magnetic (b) activation methods.