Improved sensitivity of portable bio-sensor systems using lock-in detection method

Son, Ho-Hyun; Jung, In-Il; Kim, Doo Gun; Kim, Do-Gyun; Choi, Young‐Wan

doi:10.1117/12.809025

SPIE Proceedings

2009

DOI: 10.1117/12.809025

|View full text |Cite

Improved sensitivity of portable bio-sensor systems using lock-in detection method

Ho-Hyun Son

In-Il Jung

Doo Gun Kim

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2010

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 shows the distribution of the noise and signal power from an optical detector in terms of power per unit bandwidth [5]. The most noticeable feature of this curve is the steady increase of the noise power as the frequency approaches zero.…”

mentioning

confidence: 97%

Signal detection technique utilising ‘lock-in’ architecture using 2 c harmonic frequency for portable sensors

et al. 2010

View full text Add to dashboard Cite

A signal detection technique utilising a 'lock-in' architecture using the second-order harmonic frequency (2 v c ) applicable to portable opticalbiosensor systems is presented. The properties of frequency synthesis and filtering techniques are used to detect a weak signal concealed in intense background noise, such as thermal noise, 1/f noise and shot noise. Using the 2 v c lock-in, the main signal of interest keeps away from the influence of the 1/f noise, providing a much higher dynamic reserve. In this work, a portable biosensor system using the 2 v c frequency detection technique is demonstrated. The technique further enhances the minimum detectable range of 20 dB compared to the conventional DC lock-in method under the same conditions.

show abstract

mentioning

confidence: 97%

Signal detection technique utilising ‘lock-in’ architecture using 2 c harmonic frequency for portable sensors

et al. 2010

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Improved sensitivity of portable bio-sensor systems using lock-in detection method

Cited by 1 publication

References 9 publications

Signal detection technique utilising ‘lock-in’ architecture using 2 c harmonic frequency for portable sensors

Signal detection technique utilising ‘lock-in’ architecture using 2 c harmonic frequency for portable sensors

Contact Info

Product

Resources

About