A microsensor for direct measurement of O2partial pressure within plant tissues3

Performance characteristics of a pressure microsensor.

A new fiber optic microsensor has been developed for pressure measurement. The pressure microsensor is extremely small (360 micro m). Performance characteristics of the microsensor were evaluated over a pressure range from 0 to 250mmHg. Five sensors were compared to a National Institute of Standards and Technology traceable reference pressure. The microsensor had an accuracy, repeatability, and...

Touch-at-a-Distance: Pressure Microsensor Arrays for AUV Navigation

Electromechanical analysis of a piezoresistive pressure microsensor for low-pressure biomedical applications

A.L. Herrera-May, B.S. Soto-Cruz, F. López-Huerta, and L.A. Aguilera Cortés Centro de Investigación en Micro y Nanotecnologı́a, Universidad Veracruzana, Boca del Rı́o, Ver., México. Centro de Investigación en Dispositivos Semiconductores, Benemérita Universidad Autónoma de Puebla, Puebla, Pue., México. Facultad de Ciencias Fı́sico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Pue...

A Resonant Pressure Microsensor Capable of Self-Temperature Compensation

Resonant pressure microsensors are widely used in the fields of aerospace exploration and atmospheric pressure monitoring due to their advantages of quasi-digital output and long-term stability, which, however, requires the use of additional temperature sensors for temperature compensation. This paper presents a resonant pressure microsensor capable of self-temperature compensation without the ...

Direct measurement of oxygen partial pressure in a flying bumblebee.

The gas transport system of a bumblebee was investigated by measuring the oxygen partial pressure P(O(2)) in the wing muscle. In the resting bee, P(O(2)) showed a regular pattern of fluctuation with a typical period of 70-120s. Fluctuations in muscular P(O(2)) were associated with intermittent abdominal pumping. Ventilation by abdominal movements may not be necessary during rest because P(O(2))...