Low voltage active pressure sensor based on polymer space-charge-limited transistor

Yu-Chiang Chao; Wei-Jen Lai; Chun-Yu Chen; Hsin-Fei Meng; Hsiao-Wen Zan; Sheng-Fu Horng
December 2009
Applied Physics Letters;12/21/2009, Vol. 95 Issue 25, p253306
Academic Journal
Low voltage active pressure sensor is realized by vertically stacking a pressure sensitive rubber on a polymer space-charge-limited transistor. The sensor can be turned on and off by modulating the metal-grid base voltage within the range of 3 V. The output current is irrelevant to the pressure as the sensor is off. As the sensor is turned on, the output current values can be used to monitor the pressure. Reversible pressure sensing characteristics is observed below the pressure of 7.11 psi. The response time of the sensor to the pressure is as short as 22 ms.


Related Articles

  • Dual-mode operation of flexible piezoelectric polymer diaphragm for intracranial pressure measurement. Chunyan Li; Pei-Ming Wu; Shutter, Lori A.; Narayan, Raj K. // Applied Physics Letters;2/1/2010, Vol. 96 Issue 5, p053502 

    The dual-mode operation of a polyvinylidene fluoride trifluoroethylene (PVDF-TrFE) piezoelectric polymer diaphragm, in a capacitive or resonant mode, is reported as a flexible intracranial pressure (ICP) sensor. The pressure sensor using a capacitive mode exhibits a higher linearity and less...

  • Get a sense of what to expect at sensors expo. Ajluni, Cheryl // Electronic Design;04/19/99, Vol. 47 Issue 8, p60 

    Announces the 14th annual Sensors Expo to be held on May 4-6, 1999 at the Baltimore Convention Center in Maryland. Hands-on opportunity for engineers to test, inspect and compare technologies for various applications; Coverage of topics including temperature and pressure sensors and...

  • Quantum-ferroelectric pressure sensor for use at low temperatures. Lawless, W. N.; Clark, C. F.; Samara, G. A. // Review of Scientific Instruments;Oct85, Vol. 56 Issue 10, p1913 

    A small, multilayer capacitance sensor (∼70 mm3) for measuring pressure over a broad range at low temperatures is described. The dielectric material is a quantum ferroelectric in the (Cd, Pb)2(Nb, Ta)2 O7 ceramic system, and the reciprocal capacitance varies linearly with pressure into the...

  • Highlights from Sensors Expo '98. Gottschalk, Mark A. // Design News;8/3/98, Vol. 54 Issue 15, p40 

    Presents highlights from Sensors Expo 1998 hosted by the San Jose Center. Topics of the conference sessions; Accelerated designs announced; Pressure transmitter introduced; Product positioning; Sensor peripherals.

  • New Device Senses Extrusion Melt Pressure Directly.  // Plastics Technology;Nov2012, Vol. 58 Issue 11, p4 

    The article features the Vertex melt-pressure sensor from Dynisco Plastics.

  • Fiber-linked interferometric pressure sensor. Beheim, G.; Fritsch, K.; Poorman, R. N. // Review of Scientific Instruments;Sep87, Vol. 58 Issue 9, p1655 

    A fiber-optic pressure sensor is described which uses a diaphragm to modulate the mirror separation of a Fabry–Perot cavity (the sensing cavity). A multimode optical fiber delivers broadband light to the sensing cavity and returns the spectrally modulated light which the cavity reflects....

  • Tool Upgrade for Micro-, Nano-Fluidics Platform.  // Laboratory Equipment;Feb2013, Vol. 49 Issue 11, p30 

    The article offers brief information on the pressure and temperature sensors, the laboratory supplies added to the LabPackage offering from LabSmith Inc.

  • Pressure Sensor.  // Sea Technology;Mar2008, Vol. 49 Issue 3, p55 

    The article evaluates the PRECISE pressure sensor from Presens AS.

  • Sensors & Transducers. Warner, Chris // ECN: Electronic Component News;Sep2002 Part 1 of 2, Vol. 46 Issue 10, p86 

    Features several sensors and transducers. Selco Products Co.'s NTC thermistors; Omega Vanzetti's OS1562 and OS1572 stand-alone fiber optic infrared sensors; United Electric Controls Co.'s P125 Model industrial pressure transducers.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics