Nanopositioning Bend Test System by Dynamic Structures And Materials, LLC
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The "Nanopress" was originally developed for explorative research in the field of mechanical break junction circuits. A subsequent application required the incorporation of a high-resolution load cell for the characterization of thin films under stressed condition.
The Nanopress system's design includes a coarse adjustment capability for 1.5 mm travel and a piezo actuator for a servo-controlled nanopositioning range of 30 microns. A capacitive probe provides the nanometer-level displacement feedback signal that is fed into DSM's SA piezo servo amplifier and used to establish the system's servo control. The system is scalable and can be used for stress testing of small material samples as well as for mechanical break junction testing. Replaceable "jaws" convert the Nanopress from a 3- to a 4-point bend test device.
About Dynamic Structures And Materials, LLC
Dynamic Structures and Materials, LLC (DSM) specializes in electrical-mechanical design and prototyping services for challenging devices, machines, and systems. By partnering with industrial designers, engineers, and scientists, DSM’s varied expertise has enabled new and unique product development for industrial and consumer applications. DSM has extensive experience in motion control applications including micropositioning and nanopositioning system design using flexure-guided motion components. Specialty Motion System Competencies -------------------------------------------------- * Linear and rotary actuation systems for scanning applications, valves, and micro / nanopositioning equipment design * Flexure-guided mechanism designs for smooth motion * Piezoelectric and shape memory alloy materials Controls Software and Sensors -------------------------------------------------- * National Instruments LabVIEW VIs (CLAD certification), serial and USB communications, DLLs * HMI development * C, C++.net, VB.net, ASSEMBLY * Digital and analog sensor integration, data acquisition * Linear and non-linear control systems, including PID Electrical Circuit Design Capabilities -------------------------------------------------- * 50+ combined years of product design experience * Circuits for analog and power applications * Microcontroller and DSP implementations * Ultrasonic switching drivers for piezoelectric devices * Embedded systems software development Solid Modeling, Mechanical Design, FEA -------------------------------------------------- * 3D, 2D CAD * FEA-optimization of mechanisms and structures * Static, dynamic, modal, and transient analysis Precision Machine Design and Automation -------------------------------------------------- * Robotics, machine vision, laser scanning * Air bearing systems, harmonic drives, linear motors