Construction of a Microprocessor-Controlled Film Balance

Toyoki Kunitake, Masatsugu Shimomura, Hironori Inoue, Nobuaki Ono

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A fully microprocessor-controlled film balance and a film lift system were constructed (Fig. 3). The speed of the moving barrier, which is driven by a vibration-free pulse motor system coupled with linear ball bearing and threaded screw (2 mm pich) (Fig. 1), is changeable from 0.04 mm/s to 8 mm/s. The resolution and the accuracy of the barrier position are 40 pm. Feed-back control from a pressure sensor (Wilhelmy plate system using a load cell sensor) enables measurement of pressure-area isotherms by the pressure-equilibration mode (Fig. 5). The isotherm of stearic acid obtained by this mode was different from that of the constant-speed mode (Fig. 6). The vibration-free film lift, driven by a timing belt-pulse motor system (Fig. 2), and the high resolution (0.03 mN/m) of the pressure sensor are effective for preparation of LB films with good quality. All data and conditions are transferred to a personal computer through the RS 232 C communication interface and analyzed by a BASIC program. Changeable control parameters enable measurements un,der precisely-set conditions.

Original languageEnglish
Pages (from-to)2058-2063
Number of pages6
JournalNIPPON KAGAKU KAISHI
Volume1987
Issue number11
DOIs
Publication statusPublished - Jan 1 1987

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Microprocessor chips
Stepping motors
Pressure sensors
Isotherms
Stearic acid
Ball bearings
Langmuir Blodgett films
Personal computers
Feedback control
Communication
Sensors
stearic acid
plaferon

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Kunitake, T., Shimomura, M., Inoue, H., & Ono, N. (1987). Construction of a Microprocessor-Controlled Film Balance. NIPPON KAGAKU KAISHI, 1987(11), 2058-2063. https://doi.org/10.1246/nikkashi.1987.2058

Construction of a Microprocessor-Controlled Film Balance. / Kunitake, Toyoki; Shimomura, Masatsugu; Inoue, Hironori; Ono, Nobuaki.

In: NIPPON KAGAKU KAISHI, Vol. 1987, No. 11, 01.01.1987, p. 2058-2063.

Research output: Contribution to journalArticle

Kunitake, T, Shimomura, M, Inoue, H & Ono, N 1987, 'Construction of a Microprocessor-Controlled Film Balance', NIPPON KAGAKU KAISHI, vol. 1987, no. 11, pp. 2058-2063. https://doi.org/10.1246/nikkashi.1987.2058
Kunitake, Toyoki ; Shimomura, Masatsugu ; Inoue, Hironori ; Ono, Nobuaki. / Construction of a Microprocessor-Controlled Film Balance. In: NIPPON KAGAKU KAISHI. 1987 ; Vol. 1987, No. 11. pp. 2058-2063.
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