18438215. GAS MONITORING DEVICE FOR GAS CHROMATOGRAPH simplified abstract (SHIMADZU CORPORATION)

GAS MONITORING DEVICE FOR GAS CHROMATOGRAPH

Organization Name

SHIMADZU CORPORATION

Inventor(s)

Yuki Komori of Kyoto-shi (JP)

Shori Kinoshita of Kyoto-shi (JP)

Nami Hongo of Kyoto-shi (JP)

GAS MONITORING DEVICE FOR GAS CHROMATOGRAPH - A simplified explanation of the abstract

This abstract first appeared for US patent application 18438215 titled 'GAS MONITORING DEVICE FOR GAS CHROMATOGRAPH

The gas monitoring device for a gas chromatograph includes a pump, a measurement flow path, a gas sensor, a flow rate detection unit, a temperature acquisition unit, and a controller.

• The pump removes gas from a space in the column oven of the gas chromatograph.
• The gas sensor detects a specific component in the gas flowing through the measurement flow path.
• The flow rate detection unit acquires a signal corresponding to the flow rate of the gas by controlling the voltage applied to the self-heating element.
• The temperature acquisition unit acquires temperature information about the gas flowing into the measurement flow path.
• The controller sets the reference temperature of the self-heating element based on the temperature information and determines the normality of the pump operation based on the signal acquired by the flow rate detection unit.

Potential Applications: - Gas chromatography - Environmental monitoring - Industrial process control

Problems Solved: - Accurate detection of specific gas components - Monitoring flow rates in real-time - Ensuring the proper operation of the pump

Benefits: - Improved accuracy in gas analysis - Real-time monitoring of flow rates - Enhanced reliability of gas chromatograph systems

Commercial Applications: Gas monitoring devices can be used in various industries such as environmental monitoring, pharmaceuticals, petrochemicals, and food and beverage for quality control and process optimization.

Questions about Gas Monitoring Device for Gas Chromatograph: 1. How does the gas sensor detect specific components in the gas flow? 2. What are the potential benefits of real-time flow rate monitoring in gas chromatography systems?

Original Abstract Submitted

A gas monitoring device for gas chromatograph, comprising a pump configured to take a gas out of a space in a column oven of the gas chromatograph (GC); a measurement flow path through which the gas taken out of the space in the column oven by the pump flows; a gas sensor having a sensing unit exposed in the measurement flow path, the gas sensor being configured to detect a specific component in the gas flowing through the measurement flow path; a flow rate detection unit including a self-heating element arranged in the measurement flow path, the flow rate detection unit being configured to acquire a signal corresponding to a flow rate of the gas flowing through the measurement flow path by controlling a voltage applied to the self-heating element so that the temperature of the self-heating element is set to a reference temperature; a temperature acquisition unit configured to acquire temperature information about the gas flowing into the measurement flow path; and a controller configured to control operations of the pump and the flow rate detection unit, wherein the controller is configured to set the reference temperature of the self-heating element of the flow rate detection unit to a temperature of the gas flowing into the measurement flow path based on the temperature information acquired by the temperature acquisition unit and determine normality of the operation of the pump based on the signal acquired by the flow rate detection unit. wherein the controller is configured to set the reference temperature of the self-heating element of the flow rate detection unit to a temperature of the gas flowing into the measurement flow path based on the temperature information acquired by the temperature acquisition unit and determine normality of the operation of the pump based on the signal acquired by the flow rate detection unit.