skip to main content
Idioma:

Design and Application of a High Sensitivity Piezoresistive Pressure Sensor for Low Pressure Conditions

Yu, Huiyang ; Huang, Jianqiu

Sensors (Basel, Switzerland), 2015-09, Vol.15 (9), p.22692-22704 [Periódico revisado por pares]

Switzerland: MDPI AG

Texto completo disponível

Citações Citado por
  • Título:
    Design and Application of a High Sensitivity Piezoresistive Pressure Sensor for Low Pressure Conditions
  • Autor: Yu, Huiyang ; Huang, Jianqiu
  • Assuntos: Aluminum ; Beams (structural) ; Design ; Environmental impact ; Etching ; Internet of Things ; Low pressure ; piezoresistive ; Piezoresistors ; pressure sensor ; Pressure sensors ; Sensors ; Silicon ; Stress concentration
  • É parte de: Sensors (Basel, Switzerland), 2015-09, Vol.15 (9), p.22692-22704
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: In this paper, a pressure sensor for low pressure detection (0.5 kPa-40 kPa) is proposed. In one structure (No. 1), the silicon membrane is partly etched to form a crossed beam on its top for stress concentration. An aluminum layer is also deposited as part of the beam. Four piezoresistors are fabricated. Two are located at the two ends of the beam. The other two are located at the membrane periphery. Four piezoresistors connect into a Wheatstone bridge. To demonstrate the stress concentrate effect of this structure, two other structures were designed and fabricated. One is a flat membrane structure (No. 2), the other is a structure with the aluminum beam, but without etched silicon (No. 3). The measurement results of these three structures show that the No.1 structure has the highest sensitivity, which is about 3.8 times that of the No. 2 structure and 2.7 times that of the No. 3 structure. They also show that the residual stress in the beam has some backside effect on the sensor performance.
  • Editor: Switzerland: MDPI AG
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.