Actuators mechanical characterization

Aggarwal, P., and C.R. Johnston. 2004. Geometrical effects in mechanical characterizing of microneedle for biomedical applications. Sens. Actuators B 102 226. 

Jeong M-K, Park S-M, Jung J-W, Jeong H-D, Kim H-J. Consumable approaches of polysilicon MEMS CMP. Proceeding of the Second PacRim-CMP 2005. p297-300. Lange P, Kirsten M, Riethmiiller W, Wenk B, Zwicker G, Morante JR, Ericson F, Schweitz JA. Thick polycristalline silicon for surface-micromechanical applications deposition, structuring and mechanical characterization. Sens Actuators A 1996 54 674-678. 

Rosset S, NMaus M, Dubois P, Shea HR (2008) Mechanical characterization of a dielectric elastomer microactuator with ion-implanted electrodes. Sens Actuators A 144 185... 

Verdii, R., J. Morales, A. Fernandez-Romero, M.T. Cortes, T.F. Otero, and L. Weruaga. 2002. Mechanical characterization of artificial muscles with computer vision. In Electroactive polymer actuators and devices, vol. 4695, ed. Y. Bar-Cohen, 253. SPIE. 

Lange, P., Kirsten, M., RiethmiiUer, W., Wenk, B., Zwicker, G., Morante, J.R., Ericson, F., Schweitz, J.A., 1996. Thick polycrystaUine silicon for siuface-micromechanical applications deposition, structuring and mechanical characterization. Sens. Actuators A 54, 674-678. 

Bilayer and trilayer actuators Characterizations of Electrochemical cell Experimental procedure Materials Conducting polymers (CPs) Liquid electrolyte Open air Cyclic voltammetry Dibutyltin dilaurate Electronic conducting polymers (ECPs) Interpenetrating polymer network (IPN) Poly (3,4-ethylenedioxythiophene) (PEDOT) Polypyrrole (PPY) Actuation mechanism of Electrogeneration of Electropolymerization of pyrrole monomer Oxidation and reduction reaction of Polyvinylidene fluoride (PVDF) Solid polymer electrolyte (SPE) membrane Force characterizations IPNs Load curves and metrics PVDF membrane Strain characterizations... 

As explained in Sect. 3.5, also humidity absorption can change the electromechanical properties of an actuator considerably. Therefore, measurement of both -ambient temperature and relative humidity level - is necessary for proper eleetro-mechanical characterization of the actuators. 

Shibata T et al (2007) Fabrication and mechanical characterization of microneedle array for cell surgery. In Actuators and Microsys- terns Conference, pp. 719-722... 

Fluid-filled bulbs dehver enough power to drive controller mechanisms and even directly actuate control valves. These devices are characterized by large thermal capacity, which sometimes leads to slow response, particularly when they are enclosed in a thermal well for process measurements. Filled-system thermometers are used extensively in industrial processes for a number of reasons. The simplicity... 

Float-Actuated Devices Float-actuated devices are characterized by a buoyant member that floats at the interface between two fluids. Since a significant force is usually required to move the indicating mechanism, float-actuated devices are generally limited to liqiiid-gas interfaces. By properly weighting the float, they can be used to measure hquid-liquid interfaces. Float-actuated devices may be classified on the basis of the method used to couple the float motion to the indicating system as discussed below. 

Although the FMEDA technique was developed for electronic circuits, the analysis can be adopted to mechanical instruments (Ref. 14). This technique has been used successfully to estimate the failure rates for various failure mode solenoids, ball valves, control valves, various t)rpes of pneumatic and hydraulic actuators, and the mechanical portion of smart valve positioners. Many of the parts must be characterized for the mechanical stress of the particular application but when that is done, the results can be realistic. 

The structure of a simple closed-chain mechanism is characterized by m actuated chains which support a single common reference member [31]. The supporting chains are assumed to be serial-link chains, firee of intmial closed loops. Therefore, the removal of the reference membo breaks all closed Io( in the system. Each chain may have an arbitrary numbo of links and degrees of freedom. The... 

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