Abstract

Systems and methods for calculating gas densities within a fluid enclosure are disclosed. In an example embodiment, a system includes a temperature probe for measuring an enclosure temperature in a fluid enclosure filled at least in part with a fill gas, an atmospheric pressure sensor for measuring the atmospheric pressure outside the fluid enclosure, a gas sensor for measuring an enclosure pressure within the fluid enclosure, and a controller for calculating a fill gas density within the fluid enclosure based at least in part on the enclosure temperature, the atmospheric pressure, the enclosure pressure, and a gas coefficient of the fill gas.

IPC Classes  ?

• G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences

Abstract

6 mass, storing data in onboard data logs, and communicating data when triggered by detection events or in response to remote requests over a hierarchical communications network, a process that continues without labor until a fractional leak is automatically detected and reported creating the opportunity for early leak mitigation.

IPC Classes  ?

• G01M 3/26 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
• G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
• G01M 3/00 - Investigating fluid tightness of structures
• G05B 15/02 - Systems controlled by a computer electric
• G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
• G01K 7/22 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a non-linear resistance, e.g. thermistor

Abstract

Mechanical, electronic, algorithmic, and computer network facets are combined to create a highly integrated advanced sensor that monitors the gas density, state-of-repair, and events associated with switchgear. Measurements of gas pressure, atmospheric pressure, gas temperature, are used with models of the non-ideal behavior of a particular gas to realistically estimate gas density. A hierarchical system of signal processing optimizes measurements working within high-frequency, real-time, short-term, medium-term, diurnal, long-term, and historical timeframes and overcomes measurement errors present in real-world applications. The time at which a condition such as gas density will reach a particular level is calculated. Events such as threshold attainments and switchgear operation are detected. A large memory stores all raw data values allowing flexible re-processing and verification at any future time. Instantaneous as well as logged information is communicated in convenient formats over a selected digital network. An embedded web server provides a familiar graphical user interface.

IPC Classes  ?

• G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
• G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups

Goods & Services

Gas density monitoring devices for detecting leaks in gas-insulated systems in the electrical industry; gas density monitoring devices for detecting leaks in electrical substation circuit breakers and gas-insulated substation systems; gas density monitoring devices for detecting greenhouse gas leaks; gas density monitoring devices for detecting sulfur hexafluoride (SF6) leaks; leak detectors for detecting greenhouse gas leaks; leak detectors for electrical substation circuit breakers and gas-insulated substation systems

Abstract

6 mass, storing data in onboard data logs, and communicating data when triggered by detection events or in response to remote requests over a hierarchical communications network, a process that continues without labor until a fractional leak is automatically detected and reported creating the opportunity for early leak mitigation.

IPC Classes  ?

• G01M 3/26 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
• G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
• G01M 3/00 - Investigating fluid tightness of structures
• G05B 15/02 - Systems controlled by a computer electric

Abstract

6 mass, storing data in onboard data logs, and communicating data when triggered by detection events or in response to remote requests over a hierarchical communications network, a process that continues without labor until a fractional leak is automatically detected and reported creating the opportunity for early leak mitigation.

IPC Classes  ?

• G01M 3/26 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
• G01N 9/26 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring pressure differences
• G01M 3/00 - Investigating fluid tightness of structures
• G05B 15/02 - Systems controlled by a computer electric