4 results about "Enhanced sensitivity" patented technology

This invention relates to an advanced method for detecting and analyzing scent profiles using an intelligent gas sensor array system. The method involves acquiring an initial data set from a sensor array exposed to a gas mixture, followed by performing a coarse analysis to determine a superset of scent profiles, which includes various subset scent profiles within the gas mixture. Based on this preliminary analysis, a set of refinement parameters is established, leading to the adjustment of operational parameters of the sensor array. These parameters include sampling rate, duration of sensing, sensor selection, heating profile, and energy feed to selected sensors, which are tailored to enhance the specificity and accuracy of the subsequent analysis. The method further includes acquiring an expanded data set under these optimized conditions, allowing for a refined analysis of the gas mixture. This refined analysis is specifically designed to accurately identify the presence of target scent profiles, utilizing the enhanced sensitivity and specificity provided by the adjusted sensor array settings.

The invention discloses a cascaded optical fiber temperature and salinity sensor with virtual vernier sensibilization and a measurement method thereof. The measurement method comprises the following steps: obtaining a cascaded interference spectrum through the cascaded optical fiber temperature and salinity sensor with a large dislocation structure and a small dislocation tapering structure; obtaining a corresponding filtering spectrum based on the cascaded interference spectrum; the salinity sensitivity and the first temperature sensitivity of the large dislocation structure are obtained, and the second temperature sensitivity of the small dislocation tapering structure is obtained; and performing two-parameter decoupling based on the sensitivity matrix to obtain the temperature and salinity of the environment to be measured. According to the novel spectrum reconstruction method, the sensitivity is improved by several times after virtual vernier sensitization processing is carried out on the second temperature sensitivity, and high-precision and low-cost synchronous measurement of the seawater temperature and salinity is achieved through the unique single-channel cascade optical fiber structure and the virtual vernier sensitization technology.

Provided herein are systems, devices, and methods for rapid and accurate measurement of analyte particle binding-induced aggregation of reporter particles. In the presence of analyte particles of interest, the reporter particles form aggregates whose average particle size increases with increasing analyte concentration. From analysis of the average particle size determined from the sample frame, the presence and / or concentration of the analyte can be determined.

The application relates to the technical field of data security control, and particularly discloses a control system for data sensitivity levels based on dynamic optimization, which comprises an original data stream acquisition module, a sensitive scoring and semantic understanding module, a semantic drift quantitative evaluation module, a scoring enhancement and mapping module and a permission matching module. The original data stream acquisition module is used for acquiring original data request packets, static rule dictionaries and external event streams. The sensitive scoring and semantic understanding module is used for matching and scoring to obtain a basic sensitivity score, and performing feature extraction and vectorization conversion to obtain a data content vector and a global event context vector. The semantic drift quantitative evaluation module is used for performing semantic drift quantitative evaluation to obtain a semantic drift coefficient. The scoring enhancement and mapping module is used for performing dynamic enhancement calculation to obtain an enhanced sensitivity score, and performing boundary truncation and discretization mapping to obtain a dynamic sensitivity level. The permission matching module is used for performing permission matching between the dynamic sensitivity level and a user attribute archive to obtain an access control decision result. The application realizes millisecond-level adaptive reconstruction and accurate permission ruling of the sensitivity level.