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    • Keywords


      Electronic control system; Langmuir-Blodgett set-up; micro-stepping

    • Abstract


      An indigenous and simple electronic control system for Langmuir-Blodgett (LB) film deposition set-up has been developed. This set-up consists of a microstepping circuit to drive the stepper motors with precision and smooth motion, essential for controlled movement of the barriers and substrate in the LB set-up. Linear variable differential transformer (LVDT)-based displacement measuring device has been developed and used to measure the surface pressure of the monolayer material spread on the water surface. A control program is written which incorporates all operational modes required to drive the set-up and to acquire the datain situ using a set of user-friendly commands. This control set-up has been successfully used to plot the pressure-area isotherm of various amphiphilic compounds such as ferric stearate, zinc arachidate etc. and for deposition of ordered LB films of ferric stearate.

    • Author Affiliations


      C P Navathe1 B L Dashora1 Archana Jaiswal1 2 D S Thakur1 U N Roy1 L M Kukreja1

      1. Laser Programme, Centre for Advanced Technology, Indore - 452 013, India
      2. Inter University Consortium for DAE Facilities, Indore - 452 017, India
    • Dates

  • Sadhana | News

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