HSE520-Electronic nose module

The HSE520 electronic nose module is developed based on a photionization + MOS broadband sensor array. It provides different feedback signals for the gases to be detected from various sensor perspectives, thereby generating a relatively unique multi-dimensional spectrum of the gases. By comparing this spectrum with a pre-stored database of spectra, accurate identification of the gases is possible. The sensor module is capable of simultaneously monitoring 10 different gas parameters, including OU, TVOC, ammonia, hydrogen sulfide, trimethylamine, styrene, carbon disulfide, methanethiol, methanethioether, and dimethyldisulfide.

功能特点 | Product Features

- Photons + broadband sensor; 11 measurement channels available；

- Independent air chambers and an aluminum alloy casing ensure rapid response；

- Three independent calibration algorithms: zero-point calibration, concentration calibration, and range calibration；

- Supports simultaneous measurement of OU, TVOC, and malodors；

- The output gas spectrum can identify hundreds of different gases（It requires the cooperation of pattern recognition algorithms）；

产品功能 | Product Features

Feature 1: Multi-dimensional detection

Electrochemical sensors are present：

- The problem of cross-sensitivity；

- The measurement accuracy is low at low concentrations；

- Long-term drift requires frequent calibration；

- Response time exceeded the limit (the leakage response time was 60 seconds).

- The existence of the aforementioned issues significantly limits the reliability of sensors in complex environments.

This product utilizes PID and MOS technologies to construct a broadband sensor array. By analyzing the detected gases from various dimensions, it generates relatively unique multi-dimensional spectra, enabling accurate measurements of the gases. This approach effectively eliminates the problem of cross-interference between sensors.

Feature 2: All-aluminum air chamber with PTFE coating.

The chamber is made entirely of aluminum and features a PTFE coating on its interior. This coating prevents the absorption of foul-smelling gases, thus eliminating any interference caused by these gases and ensuring high detection sensitivity.

Feature 3: Output of 10 different gas parameters

Based on technologies such as multi-modal acquisition of weak signals, simultaneous measurement of environmental parameters like temperature, humidity, and pressure, noise reduction using wavelet transform, algorithms for baseline drift correction, and dynamic compensation models, a single sensor module is capable of accurately monitoring eight gases simultaneously: O2, CO, TVOC, and malodors.

应用场景 | Application Scenarios