Patent ID: 9696291
Date: 2017-07-04
CPC Classifications: G01N,Y02A

Claim:
1. A portable electronic nose used for determining meat freshness, said electronic nose comprising: a gas sensor system including at least two metal-oxide semiconductor sensors configured to measure a value of NH 3 , and a value of CH, and configured to record changes in values of a concentration of volatile organic compounds released during a meat spoilage; a processor configured to receive and process incoming gas sensor output signals from the gas sensor system and convert them into a sequence of electrical signals based on variations in a value of concentrations of the volatile organic compounds detected in a headspace above a tested meat; wherein a variation of output signals from the gas sensor system after storage of the meat to obtain an initial value of NH 3 and an initial value of CH and provide a comparison of each of the values to threshold levels to determine meat freshness levels and to send the electrical signals to a Bluetooth device which transmits the signals to a mobile device containing software that processes the electrical signals to determine a variation of output signals from the gas sensor system or receives the results of the comparison from the processor; wherein the mobile device further comprising a video output device to display the meat freshness level of the tested meat.