3 results about "Chemical concentration" patented technology

Sensor and / or sound detection device with: a sensing device (10) with a sensitive surface (12) which is designed such that a change in at least one physical quantity and / or at least one chemical concentration at the sensitive surface (12) causes a change in a sensor signal output by or tapped from the sensing device (10); wherein at least one access channel (18) in the sensor and / or sound detection device is designed such that, at least as long as the at least one access channel (18) is open, air and / or at least one gas can be transferred through the at least one access channel (18) between a spatial environment of the sensor and / or sound detection device and the sensitive surface (12); characterized by at least one at least partially water-impermeable membrane (20) with an inner membrane surface (20a) oriented towards the at least one associated access channel (18), wherein at least one contact surface (22) of the respective membrane (20) located on the respective inner membrane surface (20a) is pressed against at least one associated membrane contact surface (24) on the at least one associated access channel (18) by deformation of the respective membrane (20) when a membrane outer surface (20b) of the respective membrane (20) or a cover layer (40) located on the respective membrane outer surface (20b) is wetted with at least a minimum quantity of liquid, such that the at least one associated access channel (18) is sealed liquid-tight, wherein the at least one membrane (20) is designed such that, if the respective membrane outer surface (20b) or cover layer (40) is not wetted,the respective membrane (20) is in its initial position and the at least one associated access channel (18) is kept open via at least one open intermediate gap between the at least one contact surface (22) of the respective membrane (20) in its initial position and the at least one associated membrane contact surface (24) on the at least one associated access channel (18).

The invention belongs to the technical field of data processing, and particularly relates to a peptide milk powder activity quality detection method based on wet process production, which comprises the following steps: S1, acquiring fluid time sequence data of a production node and an original reflection spectrum sequence of a spray drying node, performing smooth filtering operation on the original reflection spectrum sequence to obtain a standardized smooth spectrum; s2, importing the smooth spectrum into a pre-configured partial least square regression algorithm model, and calculating and outputting the apparent chemical concentration of the peptide component in the milk powder of the current batch; and S3, based on background features of the smooth spectrum and fluid mechanics features of the fluid time sequence data, constructing an operation index with causal logic to complete depth correction operation on the apparent chemical concentration, and outputting real activity retention concentration with both concentration attribute and activity attribute. According to the invention, the optical measurement error is effectively eliminated, and the real biological value is accurately evaluated.

The utility model relates to the technical field of accessory devices of chemical concentration balancing devices, in particular to intelligent tank liquid balancing equipment, which integrates an automatic chemical feeding system and an intelligent water replenishing system. The chemical concentration balancing device is used for automatically and quantitatively supplementing water and automatically adding chemicals according to the concentration of the chemicals in the chemical mixing tank, so that the chemicals can reach the optimal proportion at the moment, manual water adding and concentration adjustment after water adding are omitted, the stability and the cleaning effect of the chemicals in the chemical mixing tank are improved, and the practicability is enhanced. Comprising a balancing device shell and a control mainboard, two sets of partition plates are arranged in the balancing device shell, a first cavity, a second cavity and a third cavity are formed in the balancing device through the two sets of partition plates, and four sets of supporting legs are arranged at the bottom end of the balancing device shell.