Real-time measurement of signal to noise ratio for harmonic signals

2017 ◽  
Vol 1 (12) ◽  
pp. 20-23
Author(s):  
Jurij GRISZIN
Keyword(s):  
Real Time ◽  
Signal To Noise Ratio ◽  
Time Measurement ◽  
Signal To Noise ◽  
Harmonic Signals ◽  
Real Time Measurement ◽  
Noise Ratio

scholarly journals A novel biosensor with high signal-to-noise ratio for real-time measurement of dopamine levels in vivo

2017 ◽  
Vol 96 (5) ◽  
pp. 817-827 ◽  
Author(s):  
Akimasa Ishida ◽  
Atsushi Imamura ◽  
Yoshitomo Ueda ◽  
Takeshi Shimizu ◽  
Ryosuke Marumoto ◽  
...  
Keyword(s):  
Real Time ◽  
Signal To Noise Ratio ◽  
Time Measurement ◽  
High Signal ◽  
Signal To Noise ◽  
Real Time Measurement ◽  
Noise Ratio

Development and Characterization of an Electrocochleography-Guided Robotics-Assisted Cochlear Implant Array Insertion System

2021 ◽  
pp. 019459982110492
Author(s):  
Allan M. Henslee ◽  
Christopher R. Kaufmann ◽  
Matt D. Andrick ◽  
Parker T. Reineke ◽  
Viral D. Tejani ◽  
...  
Keyword(s):  
Cochlear Implant ◽  
Real Time ◽  
Signal To Noise Ratio ◽  
Electrode Array ◽  
High Signal ◽  
Animal Testing ◽  
Signal To Noise ◽  
Noise Ratio ◽  
Hearing Outcomes

Objective Electrocochleography (ECochG) is increasingly being used during cochlear implant (CI) surgery to detect and mitigate insertion-related intracochlear trauma, where a drop in ECochG signal has been shown to correlate with a decline in hearing outcomes. In this study, an ECochG-guided robotics-assisted CI insertion system was developed and characterized that provides controlled and consistent electrode array insertions while monitoring and adapting to real-time ECochG signals. Study Design Experimental research. Setting A research laboratory and animal testing facility. Methods A proof-of-concept benchtop study evaluated the ability of the system to detect simulated ECochG signal changes and robotically adapt the insertion. Additionally, the ECochG-guided insertion system was evaluated in a pilot in vivo sheep study to characterize the signal-to-noise ratio and amplitude of ECochG recordings during robotics-assisted insertions. The system comprises an electrode array insertion drive unit, an extracochlear recording electrode module, and a control console that interfaces with both components and the surgeon. Results The system exhibited a microvolt signal resolution and a response time <100 milliseconds after signal change detection, indicating that the system can detect changes and respond faster than a human. Additionally, animal results demonstrated that the system was capable of recording ECochG signals with a high signal-to-noise ratio and sufficient amplitude. Conclusion An ECochG-guided robotics-assisted CI insertion system can detect real-time drops in ECochG signals during electrode array insertions and immediately alter the insertion motion. The system may provide a surgeon the means to monitor and reduce CI insertion–related trauma beyond manual insertion techniques for improved CI hearing outcomes.

Visualizing cellular sodium hydrosulfite (Na2S2O4) using azo-based fluorescent probes with a high signal-to-noise ratio

2019 ◽  
Vol 7 (5) ◽  
pp. 730-733 ◽  
Author(s):  
Baoli Dong ◽  
Wenhui Song ◽  
Xiuqi Kong ◽  
Nan Zhang ◽  
Weiying Lin
Keyword(s):  
Real Time ◽  
Fluorescent Probes ◽  
Reliable Method ◽  
Signal To Noise Ratio ◽  
High Signal ◽  
Signal To Noise ◽  
Sodium Hydrosulfite ◽  
Depth Study ◽  
Noise Ratio

Developing a reliable method to detect Na2S2O4 in real time is of great importance for the in-depth study of its toxicity to humans and to allow it to be safely handled.

Sign in / Sign up

Export Citation Format

Share Document