Conference Session

Engineering Physics and Physics Division Technical Session 2

Collection

2019 ASEE Annual Conference & Exposition

Authors

Kanti Prasad, University of Massachusetts, Lowell

Tagged Divisions

Engineering Physics and Physics

the frequencies and becomes an inductor in anarrowband near acoustic resonance. The area of the resonator electrodesdetermines the capacitor Co, the thickness of the Piezoelectric filmdetermines the frequency expressed in BVD as LC resonance, whereCm = 4 Co Kt2 / 𝜋2Lm = 1 / 𝜔 2 CMRm = 𝜔 Lm / QWhere Cm, is the motional Capacitance that represents the elasticity of theresonator, Lm is the motional Inductance that represents the mass, Rm is theacoustic energy loss and Co is the clamped capacitance between the twoelectrodes of the resonator. The electro mechanical coupling coefficient (Kt)and quality factor (Q), can be given asKt = (𝜋2 /4) ((fP - fS) / fP )Q = 2  𝜋 fS L / Rwhere fs is the resonance frequency and fp is the anti resonance

Conference Session

Engineering Physics and Physics Division Technical Session 2

Collection

2019 ASEE Annual Conference & Exposition

Authors

Genaro Zavala, Tecnologico de Monterrey, Monterrey, Mexico and Universidad Andres Bello, Santiago, Chile; Carlos Eduardo Martinez-Torteya, Tecnologico de Monterrey

Tagged Divisions

Engineering Physics and Physics

graph for I2 as a function of time for 𝑡 ≥ 0. Show clearly the value at 𝑡 = 0 and for 𝑡 → ∞. Explain your reasoning. c) Sketch a qualitative graph for the capacitor’s voltage VC as a function of time for 𝑡 ≥ 0. Show clearly the value at 𝑡 = 0 and for 𝑡 → ∞. Explain your reasoning.2. Quantitative Analysis.a) For all times 𝑡 ≥ 0 and using the concept of the sum of voltage, relate the voltage in the battery with the resistances R and the currents I1 and I2.b) For all times 𝑡 ≥ 0 and using the concept of potential difference, find a relation among current I2, resistance R, the charge stored in the capacitor Q, and its capacitance C. Take the derivative of this equation with respect to time to find a relation between the derivative of

Conference Session

Engineering Physics and Physics Division Technical Session 3

Collection

2019 ASEE Annual Conference & Exposition

Authors

John Yukio Yoritomo, University of Illinois, Urbana-Champaign; Nicole Turnipseed, University of Illinois, Urbana Champaign; Maxx Joseph Villotti, University of Illinois, Urbana-Champaign; Aric Tate, University of Illinois, Urbana-Champaign; Kelly Searsmith, University of Illinois, Urbana-Champaign; Matthias Grosse Perdekamp, University of Illinois, Urbana Champaign; Paul Prior, University of Illinois, Urbana-Champaign; Julie L. Zilles, University of Illinois, Urbana-Champaign

Tagged Divisions

Engineering Physics and Physics