Using smartphones for prototyping semantic sensor analysis systems

Resonant pressure sensor, whose thermal gradient field is changed by variations in electro-thermal excitation, then influences the resonant frequency of the sensor, so different thermal excitation will produce different thermal stress, and then influences the characteristic of the sensor. For the thermal excitation resonant pressure sensor at different voltages excitant will produce different thermal gradient field, then influences the frequency of the sensor. Taking the advantage of lock-in amplifier, which can detect weak signal, an open-loop test experiment about the resonance output signal is carried out by using the method of alternating current excitation and pick-up with two-octave component. The results show the relational about thermal excitant virtual value and resonant frequency of this silicon microstructure resonant pressure sensor. Analysis about the result of the experiment is given, which can provide certain theories basis for the optimum design of the related parameter of this sensor, and have an important advice for the peripheral circuit design.

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Rapid and Versatile Breath Sampler for Online Gas Sensor Analysis

ECS Meeting Abstracts ◽

10.1149/ma2020-01342396mtgabs ◽

2020 ◽

Vol MA2020-01 (34) ◽

pp. 2396-2396

Author(s):

Sebastian Abegg ◽

Sotiris E. Pratsinis ◽

Andreas T. Güntner

Keyword(s):

Gas Sensor ◽

Sensor Analysis

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Fiber Between Two Concatenated Long Period Gratings as an Interferometric Sensor: Analysis and Optimization

2017 IEEE Workshop on Recent Advances in Photonics (WRAP) ◽

10.1109/wrap.2017.8468564 ◽

2017 ◽

Author(s):

Anjli Baliyan ◽

Nikhil Dhingra ◽

Enakshi K. Sharma

Keyword(s):

Long Period ◽

Long Period Gratings ◽

Sensor Analysis ◽

Interferometric Sensor

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Inter-sensor analysis of persistent scatterer L-band SAR interferometry

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) ◽

10.1109/igarss.2017.8127485 ◽

2017 ◽

Author(s):

Takuma Anahara ◽

Masanobu Shimada

Keyword(s):

Sar Interferometry ◽

Persistent Scatterer ◽

L Band ◽

Sensor Analysis

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Rapid antibody biosensor assays for environmental analysis

Biochemical Society Transactions ◽

10.1042/bst0280081 ◽

2000 ◽

Vol 28 (2) ◽

pp. 81-84 ◽

Cited By ~ 12

Author(s):

A. J. Killard ◽

M. R. Smyth ◽

K. Grennan ◽

L. Micheli ◽

G. Palleschi

Keyword(s):

Electrochemical Sensor ◽

Real Time ◽

Environmental Analysis ◽

Flow Injection ◽

Single Step ◽

Real Time Monitoring ◽

The Real ◽

Metabolic Role ◽

Sensor Analysis ◽

Rapid Antibody

Traditionally, biosensor development has focused on molecules with a defined metabolic role that can be exploited by enzyme-based systems. Antibodies have the ability to move beyond this range of analytes, and are particularly useful in detecting small, hapten molecules. Electrochemically based biosensor developments have been less fruitful in this regard, as enzyme labelling is required, and such assays require the separation from bound and unbound species. These separations and the removal of background signals result in the increased complexity of the assay format, making it unsuitable for rapid sensor analysis. We have developed an electrochemical sensor based on anti-bodies that does not require the separation of bound and unbound molecules in a competition immunoassay format. This removes the need for several washing and separation steps as is normally employed in this type of assay. This allows single-step immunoassays to be performed using this system, and also allows for the real-time monitoring of antibody—antigen interactions. We have shown that such assays are possible in both batch and flow-injection formats and we are currently developing an assay for the pesticide atrazine. Tentative results show that analysis with this system is possible in the p.p.m. to p.p.b. range.

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