Ultraminiature resonator accelerometer Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Title

  • Main Title Ultraminiature resonator accelerometer

Creator

  • Author: Koehler, D.R.
    Creator Type: Personal
  • Author: Kravitz, S.H.
    Creator Type: Personal
  • Author: Vianco, P.T.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)

Publisher

  • Name: Sandia National Laboratories
    Place of Publication: Albuquerque, New Mexico
    Additional Info: Sandia National Labs., Albuquerque, NM (United States)

Date

  • Creation: 1996-04-01

Language

  • English

Description

  • Content Description: A new family of microminiature sensors and clocks is being developed with widespread application potential for missile and weapons applications, as biomedical sensors, as vehicle status monitors, and as high-volume animal identification and health sensors. To satisfy fundamental technology development needs, a micromachined clock and an accelerometer have initially been undertaken as development projects. A thickness-mode quartz resonator housed in a micromachined silicon package is used as the frequency-modulated basic component of the sensor family. Resonator design philosophy follows trapped energy principles and temperature compensation methodology through crystal orientation control, with operation in the 20--100 MHz range, corresponding to quartz wafer thicknesses in the 75--15 micron range. High-volume batch-processing manufacturing is utilized, with package and resonator assembly at the wafer level. Chemical etching of quartz, as well as micromachining of silicon, achieves the surface and volume mechanical features necessary to fashion the resonating element and the mating package. Integration of the associated oscillator and signal analysis circuitry into the silicon package is inherent to the realization of a size reduction requirement. A low temperature In and In/Sn bonding technology allows assembly of the dissimilar quartz and silicon materials, an otherwise challenging task. Unique design features include robust vibration and shock performance, capacitance sensing with micromachined diaphragms, circuit integration, capacitance-to-frequency transduction, and extremely small dimensioning. Accelerometer sensitivities were measured in the 1--3 ppm/g range for the milligram proof-mass structures employed in the prototypes evaluated to date.
  • Physical Description: 24 p.

Subject

  • Keyword: Accelerometers
  • Keyword: Tin
  • Keyword: Sensitivity
  • STI Subject Categories: 44 Instrumentation, Including Nuclear And Particle Detectors
  • Keyword: Miniaturization
  • Keyword: Uses
  • Keyword: Fabrication
  • Keyword: Mechanical Vibrations
  • Keyword: Indium
  • Keyword: Performance
  • Keyword: Design

Source

  • Other Information: PBD: Apr 1996

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Other: DE96010913
  • Report No.: SAND--96-0971
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/231652
  • Office of Scientific & Technical Information Report Number: 231652
  • Archival Resource Key: ark:/67531/metadc670588

Note

  • Display Note: OSTI as DE96010913