Abstract
The inductor-capacitor (LC) sensor, comprised of a thick-film printed LC resonant circuit the resonant frequency of which can be remotely detected with a loop antenna, has been used for the monitoring of temperature, humidity, atmospheric pressure, salt concentration, and complex permittivity, as well as the detection of bacteria in a liquid medium based upon changes in the complex permittivity due to the bacteria growth. Due to its low unit cost and wireless detection, the LC sensor is potentially suitable for commercial scale monitoring of food quality. This paper includes the operational principles and design criteria of the LC sensor, and illustrates the monitoring of bacteria growth in milk, meat, and beer.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | J L Jensen, L W Burggraf |
| Pages | 150-159 |
| Number of pages | 10 |
| Volume | 4575 |
| DOIs | |
| State | Published - 2001 |
| Externally published | Yes |
| Event | Chemical and Biological Early Warning Monitoring for Water, Food, and Ground - Newton, MA, United States Duration: Nov 1 2001 → Nov 2 2001 |
Other
| Other | Chemical and Biological Early Warning Monitoring for Water, Food, and Ground |
|---|---|
| Country | United States |
| City | Newton, MA |
| Period | 11/1/01 → 11/2/01 |
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Keywords
- Bacteria growth
- Complex permittivity
- Food quality
- Meat
- Milk
- Resonant circuit
- Sensor
- Wireless
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Wireless, passive, resonant-circuit sensors for monitoring food quality. / Ong, Keat Ghee; Puckett, Libby G.; Sharma, Bethel V.; Loiselle, Melanie; Grimes, Craig A.; Bachas, Leonidas G.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / J L Jensen; L W Burggraf. Vol. 4575 2001. p. 150-159.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Wireless, passive, resonant-circuit sensors for monitoring food quality
AU - Ong, Keat Ghee
AU - Puckett, Libby G.
AU - Sharma, Bethel V.
AU - Loiselle, Melanie
AU - Grimes, Craig A.
AU - Bachas, Leonidas G
PY - 2001
Y1 - 2001
N2 - The inductor-capacitor (LC) sensor, comprised of a thick-film printed LC resonant circuit the resonant frequency of which can be remotely detected with a loop antenna, has been used for the monitoring of temperature, humidity, atmospheric pressure, salt concentration, and complex permittivity, as well as the detection of bacteria in a liquid medium based upon changes in the complex permittivity due to the bacteria growth. Due to its low unit cost and wireless detection, the LC sensor is potentially suitable for commercial scale monitoring of food quality. This paper includes the operational principles and design criteria of the LC sensor, and illustrates the monitoring of bacteria growth in milk, meat, and beer.
AB - The inductor-capacitor (LC) sensor, comprised of a thick-film printed LC resonant circuit the resonant frequency of which can be remotely detected with a loop antenna, has been used for the monitoring of temperature, humidity, atmospheric pressure, salt concentration, and complex permittivity, as well as the detection of bacteria in a liquid medium based upon changes in the complex permittivity due to the bacteria growth. Due to its low unit cost and wireless detection, the LC sensor is potentially suitable for commercial scale monitoring of food quality. This paper includes the operational principles and design criteria of the LC sensor, and illustrates the monitoring of bacteria growth in milk, meat, and beer.
KW - Bacteria growth
KW - Complex permittivity
KW - Food quality
KW - Meat
KW - Milk
KW - Resonant circuit
KW - Sensor
KW - Wireless
UR - http://www.scopus.com/inward/record.url?scp=0035766206&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035766206&partnerID=8YFLogxK
U2 - 10.1117/12.456918
DO - 10.1117/12.456918
M3 - Conference contribution
AN - SCOPUS:0035766206
VL - 4575
SP - 150
EP - 159
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Jensen, J L
A2 - Burggraf, L W
ER -