Sökning: "Thermoviscous Losses"

Hittade 2 uppsatser innehållade orden Thermoviscous Losses.

1. 1. Development of a general acoustic model for an arbitrary surveillance camera design

   Magister-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

   Författare :Shenyang Fei; [2018]
   Nyckelord :MEMS microphone; Frequency Response; Thermoviscous Losses;

   Sammanfattning : This thesis studies how the mechanical design of a surveillance camera affects the acoustic performance, mainly in terms of the frequency response within the human hearing range. During the project, the mechanical characteristics that affect frequency response were investigated by measuring the camera’s audio behavior in an anechoic chamber. LÄS MER

3. 2. Acoustic Analysis of Wave-Guide and MEMS Microphone in Camera Including Thermoviscous Losses

   Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola

   Författare :Karolis Poskus; [2018]
   Nyckelord :;

   Sammanfattning : Today Micro Electrical Mechanical Systems (MEMS) microphones are available in a range of electronic consumer products such as smart phones, tablets, smartwatches and surveillance cameras. The MEMS microphones are usually attached to a circuit board with a hole that lets sound propagate through, as well as additional wave-guides which alter the MEMS microphones original frequency response. LÄS MER