Microsensor for mercury
First Claim
1. A method for detecting gaseous mercury using at least one sensing layer that absorbs molecules of gaseous mercury and at least one other gaseous chemical species, the method comprising:
- heating the sensing layer;
receiving measures of resistance from the sensing layer at different temperatures of the sensing layer; and
detecting the gaseous mercury by distinguishing, by a processor, between the gaseous mercury and the at least one other gaseous chemical species using at least the measures of resistance and based on a rate of resistance change in the sensor layer relative to temperature of the sensing layer.
0 Assignments
0 Petitions
Accused Products
Abstract
Methods and devices for detecting a concentration of one or more element in hydrocarbon and/or natural gas in an oil and gas field application. The device including a microstructure having a low thermal mass suspended within a channel, the microstructure includes a supporting layer and a insulating layer; a controllable thermal device in communication with the supporting layer of the microstructure, wherein the controllable thermal device is controllably heated to one or more release temperature of the one or more element; a sensing layer arranged on the insulating layer to absorb molecules of the one or more element from hydrocarbon and/or natural gas; a detecting and measuring resistance device in communication with the sensing layer for measuring the resistance changes caused by absorption of molecules of the one or more element onto the sensing layer at a first temperature and a second temperature, and storing the data on a processor.
-
Citations
14 Claims
-
1. A method for detecting gaseous mercury using at least one sensing layer that absorbs molecules of gaseous mercury and at least one other gaseous chemical species, the method comprising:
-
heating the sensing layer; receiving measures of resistance from the sensing layer at different temperatures of the sensing layer; and detecting the gaseous mercury by distinguishing, by a processor, between the gaseous mercury and the at least one other gaseous chemical species using at least the measures of resistance and based on a rate of resistance change in the sensor layer relative to temperature of the sensing layer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for detecting gaseous mercury using first and second sensing layers that absorb molecules of the gaseous mercury and at least one other gaseous chemical species, the method comprising:
-
heating the first sensing layer, wherein the first sensing layer is formed of a first material; heating the second sensing layer, wherein the second sensing layer is formed of a second material selected to have different absorption characteristics with respect to the first material for the gaseous mercury and at least one other gaseous chemical species; receiving a first measure of resistance from the heated first sensing layer and a second measure of resistance from the heated second sensing layer; and detecting the gaseous chemical species by distinguishing, by a processor, between the gaseous mercury and the at least one other gaseous chemical species using at least the first measure of resistance and the second measure of resistance and based on the different absorption characteristics between the first material and the second material. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
Specification