What is the difference between electronic tongue and electronic nose?

Inthe process of taste analysis and odor analysis, it cannot be done manually.Through the analysis and processing of some sensory instruments, not only theresults are more accurate, but also the efficiency is greatly improved.Therefore, the existence of electronic tongues and electronic noses is verynecessary. What is the difference between these two analytical instruments？Electronic tongue, also known as taste sensor or taste fingerprint analyzer, isa modern qualitative and quantitative analysis mainly composed of interactivesensitive sensor array, signal acquisition circuit, and data processing methodbased on pattern recognition. Testing equipment. The electronic tongue ischaracterized by an interactive high-sensitivity sensor array with highprecision and good stability. Now, many colleges and universities in China havepurchased this instrument, and the response is good.

The detection object of the electronic nose is the volatile aroma components. When one or more aroma substances pass through the electronic nose instrument, the "odor fingerprint" of the taste substances can be sensed by the sensor and extracted by a special intelligent pattern recognition algorithm. Different gas samples can be identified by using different "odor fingerprint" information of different kinds.

In addition, some specific flare materials can characterize the comprehensive quality information of samples under the influence of multivariable factors, such as different raw material production regions, different harvest times, different processing conditions and different storage environments. The electronic nose instrument consists of sensors. That is the electronic nose due to the highest detection accuracy of instruments with similar stability.