Table 1.

Commercial components of the instrument not provided in the text.

ID letter or number	Description	Model number	Manufacturer
a and q	Micrometer driven translators	3″ × 4″, 1.5 cm travel	Oriel (currently Newport Corp.), Irvine, CA, USA
e	Shear force detector (miniature load cell)	BG Series ± 25 g range	Kulite Semiconductor Products, Inc., Leonia, NJ, USA
h	Linear variable differential transformer (LVDT)	0231-0000	Trans-Tek, Inc., Ellington, CT, USA
j and z	Magnet (j) and coil (z) of the linear actuator	LA15-16- 001A	BEI Motion Systems, Kimco Magnetics Division, Vista, CA, USA
k	Linear bearing (ball bearing slide)	NT53-851	Edmund Optics, Barrington, NJ, USA
m	Manual micro positioning stage	NT56-422	Edmund Optics, Barrington, NJ, USA
q	See a and q above	–	–
v and w	5.2 cm nonmagnetic core extension for h	0235-0000	Trans-Tek, Inc., Ellington, CT, USA
w	See v and w above	–	–
z	See j and z above	–	–
1	Moving part of a	–	–
2	Unregulated 75 V/15 amp dc power supply	21980	Servo Components and Systems, Ltd, UK
3	Dual dc power supply for 5	D15.200	Trans-Tek, Inc., Ellington, CT, USA
5	LVDT signal conditioner	1000-0014 (minimum delay)	Trans-Tek, Inc., Ellington, CT, USA
6	Signal conditioner/amplifier in a two-channel enclosure	E563HL in E513-2A	Ectron Corp., San Diego, CA, USA
11	Elmo motion controller	HAR-2/100	Elmo Motion Control, Inc., Westford, MA, USA