Unlock instant, AI-driven research and patent intelligence for your innovation.

Optics in Gas Sensors

A gas sensor and optical component technology, applied in the direction of material analysis, instruments, scientific instruments, etc. through optical means, can solve the problems of gas sensor battery life reduction, high battery power, and products that are not commercially acceptable

Active Publication Date: 2021-02-02
DRAGER SAFETY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of battery power required to run a resistive heating element is relatively high
This results in a significant reduction in the battery life of the gas sensor
[0009] This is particularly problematic in gas sensor networks that include a large number of gas sensor units, which can be spread over a large area and can result in a product that is not commercially acceptable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optics in Gas Sensors
  • Optics in Gas Sensors
  • Optics in Gas Sensors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] figure 1 A Peltier heater 2 for use in an embodiment of the present invention is shown. The Peltier heater 2 comprises a body 4 with a cold side 6 and a hot side 8 . The Peltier heater is a solid state device that transfers heat from the cold side 6 to the hot side 8 in response to electrical current supplied via the electrical connection 10 . It should be appreciated that the designations "cold" and "hot" do not necessarily imply that the hot side is at a higher temperature than the cold side. In some arrangements of the invention, particularly under humid conditions, the cold side may be warmer than the hot side. The designations cold and hot indicate the direction of heat transfer, from the cold side to the hot side.

[0055] The body 4 of the Peltier heater may have any suitable shape. It should be appreciated that the Peltier heater is generally rectangular or square, but other shapes are not excluded from the invention. The Peltier heater comprises an array o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A gas sensing device (48) comprising a gas sensor arranged to use light to sense the presence of a gas; an optical element (12, 40) arranged such that the light impinges thereon; and a thermoelectric heat pump (2, 24) having a cold side (6, 36) and a hot side (8, 34). The thermoelectric heat pump (2, 24) is configured to transfer thermal energy from the cold side (6, 36) to the hot side (8, 34) in response to a supply of electrical energy provided to the thermoelectric heat pump (2, 24). The hot side (8, 34) of the thermoelectric heat pump (2, 24) is in thermal contact with the optical element (12, 40).

Description

technical field [0001] The present invention relates to the prevention and / or removal of condensation on optical elements in gas sensors, and in particular to the use of thermoelectric heat pumps to prevent or remove condensation. Background technique [0002] Gas sensors are used in a variety of applications where it is necessary or desirable to detect the presence of a specific gas or gases. For example, in industries where explosive gases are used, it is necessary to monitor the surrounding area to ensure that there are no gas leaks that could cause an explosion due to ignition of the gas. [0003] One type of gas sensor known in the art determines the presence of a gas by detecting a change in the spectrum of electromagnetic radiation due to absorption by the gas. Such gas sensors typically include a gas measurement volume contained within a gas sensor housing. The housing has apertures to allow gas in and out of the gas measurement volume. Electromagnetic radiation p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/3504G01N21/15
CPCG01N21/15G01N21/3504G01N2021/158G01N21/85
Inventor 拉尔斯·博根布里塔·菲斯曼索尔·克里斯蒂安·霍贝克哈康·萨格贝格
Owner DRAGER SAFETY