Patent ID: 11904504
Assignee: AFROS S.P.A.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 32:
33. Method for monitoring the working conditions of a high-pressure mixing device, said method comprising the steps of:
detecting an electrical signal generated by deformation-detecting elements applied on specific surfaces obtained on a tubular element of said high-pressure mixing device, comprising strain gauge sensors connected to define a half-bridge or full-bridge Wheatstone circuit applied to the specific surfaces such that deformation components are mutually eliminated due to thermal expansion,
amplifying said electrical signal to obtain a value proportional to the forces transmitted to said tubular element by the friction, scraping and bonding actions during the sliding of a cleaning member with respect to the inner surface of said tubular element,
storing said electrical signal proportional to the sum of the friction, scraping and bonding forces exchanged between the tubular element and the cleaning member and mapping for each sliding movement a comparison between a normal operating condition of the tubular element and the cleaning member and a possible onset of an abnormal condition of operation of the group defined by the tubular element and the cleaning member.