Table 2 Normalized spring constants of several end-tip-loaded rectangular cantilevers fabricated from Perspex.

From: An analytic model for accurate spring constant calibration of rectangular atomic force microscope cantilevers

No.

Cantilever size

Ref. 21

Present

1

b = 20 cm, t = 3 mm, a = 9.31 cm

0.12

0.1221

2

b = 20 cm, t = 3 mm, a = 6.53 cm

0.085

0.08489

3

b = 20 cm, t = 3 mm, a = 3.29 cm

0.042

0.04206

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