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A wireless interface for replacing the cables in bridge-sensor applications.

Pavlin M, Novak F - Sensors (Basel) (2012)

Bottom Line: In this approach, the concept of reciprocal topology is employed, where the transmitter side acquires signals with its own transfer function and the receiver side reconstructs them with the transfer function reciprocal to the transmitter transfer function.The performance was evaluated with a dedicated data-acquisition system and finally, the test results were analyzed.The two different sets of results indicated the high level of amplitude and the temporal accuracy of the wirelessly transferred sensor signals.

View Article: PubMed Central - PubMed

Affiliation: In.Medica d.o.o., Levicnikova 34, 8310 Sentjernej, Slovenia. marko.pavlin@inmedica.si

ABSTRACT
This paper presents a solution in which a wireless interface is employed to replace the cables in bridge-sensor measurement applications. The most noticeable feature of the presented approach is the fact that the wireless interface simply replaces the cables without any additional hardware modification to the existing system. In this approach, the concept of reciprocal topology is employed, where the transmitter side acquires signals with its own transfer function and the receiver side reconstructs them with the transfer function reciprocal to the transmitter transfer function. In this paper the principle of data acquisition and reconstruction is described together with the implementation details of the signal transfer from the sensor to the signal-monitoring equipment. The wireless data communication was investigated and proprietary data-reduction methods were developed. The proposed methods and algorithms were implemented using two different wireless technologies. The performance was evaluated with a dedicated data-acquisition system and finally, the test results were analyzed. The two different sets of results indicated the high level of amplitude and the temporal accuracy of the wirelessly transferred sensor signals.

No MeSH data available.


Evaluation data-acquisition system.
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f9-sensors-12-10014: Evaluation data-acquisition system.

Mentions: In order to evaluate the performance of the developed wireless interface for replacing cables in bridge-sensor applications, a dedicated data-acquisition system was constructed. The clinical evaluation system (Figure 8) schematic is shown in Figure 9. The pressure was generated using a programmable pressure source for laboratory testing, while real live signals from different patients were taken during clinical trial. The calibrated pressure sensor S was used for the reference electrical signal. The output voltage from sensor S was connected to the transmitter unit and served as a reference signal pT. The same signal was directly connected to the data-acquisition system. The transmitter output signal was wirelessly transmitted to several receiver units simultaneously. All the receiver signals pR1, pR2 pRN were measured with dedicated channels in the DAQ.


A wireless interface for replacing the cables in bridge-sensor applications.

Pavlin M, Novak F - Sensors (Basel) (2012)

Evaluation data-acquisition system.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3472813&req=5

f9-sensors-12-10014: Evaluation data-acquisition system.
Mentions: In order to evaluate the performance of the developed wireless interface for replacing cables in bridge-sensor applications, a dedicated data-acquisition system was constructed. The clinical evaluation system (Figure 8) schematic is shown in Figure 9. The pressure was generated using a programmable pressure source for laboratory testing, while real live signals from different patients were taken during clinical trial. The calibrated pressure sensor S was used for the reference electrical signal. The output voltage from sensor S was connected to the transmitter unit and served as a reference signal pT. The same signal was directly connected to the data-acquisition system. The transmitter output signal was wirelessly transmitted to several receiver units simultaneously. All the receiver signals pR1, pR2 pRN were measured with dedicated channels in the DAQ.

Bottom Line: In this approach, the concept of reciprocal topology is employed, where the transmitter side acquires signals with its own transfer function and the receiver side reconstructs them with the transfer function reciprocal to the transmitter transfer function.The performance was evaluated with a dedicated data-acquisition system and finally, the test results were analyzed.The two different sets of results indicated the high level of amplitude and the temporal accuracy of the wirelessly transferred sensor signals.

View Article: PubMed Central - PubMed

Affiliation: In.Medica d.o.o., Levicnikova 34, 8310 Sentjernej, Slovenia. marko.pavlin@inmedica.si

ABSTRACT
This paper presents a solution in which a wireless interface is employed to replace the cables in bridge-sensor measurement applications. The most noticeable feature of the presented approach is the fact that the wireless interface simply replaces the cables without any additional hardware modification to the existing system. In this approach, the concept of reciprocal topology is employed, where the transmitter side acquires signals with its own transfer function and the receiver side reconstructs them with the transfer function reciprocal to the transmitter transfer function. In this paper the principle of data acquisition and reconstruction is described together with the implementation details of the signal transfer from the sensor to the signal-monitoring equipment. The wireless data communication was investigated and proprietary data-reduction methods were developed. The proposed methods and algorithms were implemented using two different wireless technologies. The performance was evaluated with a dedicated data-acquisition system and finally, the test results were analyzed. The two different sets of results indicated the high level of amplitude and the temporal accuracy of the wirelessly transferred sensor signals.

No MeSH data available.