Ultrasonic Equipment for Undergraduate Projects and Research

用于本科项目和研究的超声波设备

• 批准号: 8950441
• 负责人: John Dooley
• 金额: $ 1.04万
• 依托单位: Millersville University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-05-15 至 1991-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8950441&HistoricalAwards=false
• 关键词: Ultrasonic; Equipment; Undergraduate; Projects; Research

The equipment will continue the development of the ultrasonics laboratory in the Physics Department at Millersville University. Pulses of very high frequency sound are used as a probe (analogous to SONAR) to study fundamental physics (the nature of high temperature superconductors), biophysics (properties of hemoglobin and of enzymes), and the nature of waves (phase and group velocity, reflection coefficients, Bragg scattering of light by sound, the Fourier uncertainty principle for pulse modulated waves, the Kramers-Kronig relation). These studies can be done on a bench top, at low cost, and are readily understood by undergraduate students. They provide physics majors fulfilling their required senior research requirement with an entry into research which is always interesting, and occasionally publishable. The instrumentation is unintimidating, and the process of generating and detecting sound is intuitively accessible. The award will purchase two plug-in electronics modules to cover the frequency ranges 10 to 90 MHz and 90 to 300 MHz. The institution will provide an amount equal to 135% of the award toward the cost of the project.

该设备将继续米勒斯维尔大学物理系超声波实验室的发展。高频声波脉冲被用作探针（类似于声纳）来研究基础物理学（高温超导体的性质）、生物物理学（血红蛋白和酶的性质）和波的性质（相速度和群速度、反射系数、声波对光的布拉格散射、脉冲调制波的傅里叶不确定原理、Kramers-Kronig关系）。这些研究可以在工作台上完成，成本低，本科生也很容易理解。它们为物理专业的学生提供了满足他们所需的高级研究要求的入口，这些研究总是有趣的，偶尔也会发表。仪器是不吓人的，产生和检测声音的过程是直观易懂的。该合同将购买两个插件电子模块，覆盖10至90 MHz和90至300 MHz的频率范围。该机构将提供相当于该奖项135%的金额作为项目成本。