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Electrochemical detection system with in-house lifetime test

A detection system, electrochemical technology, used in the field of testing and electrochemical sensors to solve problems such as catastrophic events

Active Publication Date: 2017-06-09
ROSEMOUNT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Catastrophic events can occur in the event of equipment failure or human error in these processes

Method used

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  • Electrochemical detection system with in-house lifetime test
  • Electrochemical detection system with in-house lifetime test
  • Electrochemical detection system with in-house lifetime test

Examples

Experimental program
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Embodiment Construction

[0010] figure 1 is a schematic diagram of an electrochemical detection system using an electrochemical detection unit according to an embodiment of the present invention. In a specific embodiment, the electrochemical detection system is a gas detection system. However, embodiments of the present invention are applicable to test and electrochemical sensors.

[0011] System 10 includes electronics housing 12 coupled to sensor body 14 . Sensor body 14 may comprise any suitable electrochemical sensor that reacts with the gas of interest to generate a detectable electrical response. Examples of these sensors include toxic gas sensors. The lower portion 16 of the sensor body 14 is configured to be exposed to ambient air to detect a gas of interest, and potentially determine and provide an indication of a concentration related to the gas of interest.

[0012] Toxic gases detectable by the sensor may include hydrogen sulfide, sulfur dioxide, carbon monoxide, chlorine, ammonia, etc...

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Abstract

A detection system includes an electrochemical sensor. Measurement circuitry is coupled to the electrochemical sensor and configured to measure an electrical characteristic of the electrochemical sensor. A controller is coupled to the measurement circuitry and is configured to provide an indication based on the measured electrical characteristic. The controller is further configured to generate an electrical disturbance to the electrochemical sensor and obtain a sensor recovery profile to provide a diagnostic indication relative to the electrochemical sensor.

Description

Background technique [0001] Many industrial processes are inherently hazardous. These processes often use toxic, flammable or reactive materials in high temperature and pressure environments. In the event of equipment failure or human error in these processes, catastrophic events can occur. Safety Instrumented Systems (SIS) are automated systems designed to prevent these events. Interest in these safety systems, especially in the chemical, petrochemical and refining industries, has grown due to international standards. In these safety instrumented systems, it is of great significance to be able to diagnose the faults of the equipment in the system. [0002] In industrial processes using toxic gases, it is important that detectors for these gases can detect these gases continuously and stably. This is the case even when these toxic gases are not actually present in the normal operating environment. Furthermore, these sensors and detection systems may be deployed in or arou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/12G08B21/14
CPCG01N27/4163
Inventor 佐尔坦·I·莫纳卡迈恩·帕奇菲科
Owner ROSEMOUNT INC