Sunday, December 30, 2018
Wednesday, December 12, 2018
Happy Holidays from Duro-Sense!
From all of us at Duro-Sense, we wish our customers, partners and vendors a safe and happy holiday season and a wonderful 2019!
Monday, December 10, 2018
Duro-Sense a Critical Partner in Hydrogen Contamination Detector
We take for granted the gasoline (or diesel) we put in our cars and trucks is free from contaminants when pumped in to our gas tanks. The purity we've come to expect at the fuel pump didn't happen overnight. It took many years, and thousands of engineering hours, to develop the refining processes that produces today's clean gasoline and diesel.
Fuel Cell Vehicles are a category of electric vehicle (EV's). Fuel cell vehicles use hydrogen gas (H2) to power an electric motor. Unlike conventional vehicles which run on gasoline or diesel, fuel cell cars and trucks combine hydrogen and oxygen to produce electricity to drive the motor.
Similar to the path that gasoline and diesel processing took toward purity, the use of H2 as feedstock for fuel cells in transportation has driven requirements for H2 purity standards to very strict levels. This push has also elevated the need for cost-effective and reliable instruments that can sample H2 near the nozzle of a delivery pump, and either certify acceptability or provide a signal to shut off the fuel distribution system.
Duro-Sense Corporation, a California based manufacturer of high quality temperature sensors, is part of a team working under a DOE funded research program to develop a Hydrogen Contamination Detector. The sensor, which will be installed at hydrogen fueling stations, will detect poor quality hydrogen gas before entering the fuel cell vehicle. The sensor is intended to detect multiple impurities at extremely low levels in hydrogen to prevent fuel cell performance degradation.
Duro-Sense is designated as the industrial partner and vendor aiding in defining the commercial manufacturability of the Hydrogen Contamination Detector.
As part of their preliminary work, a thermocouple embodiment was selected as a cost-effective platform for the Hydrogen Contamination Detector because:
- Direct Commercial Availability
- Proven History of Reliability and Robustness
- Adaptability of Conductor Materials for Most
- Appropriate Catalyst for Each Contaminant
- Ability to Incorporate up to 12 Conductors a Single Thermocouple, Reducing Fluid Stream Penetrations
The Hydrogen Contamination Detector project is still in its very early stages, and research and development continues, subject to funding and continued interest in alternative fuel technology.
For more information, contact Duro-Sense at 310-533-6877 of visit their web site at https://duro-sense.com.
Tuesday, December 4, 2018
3 Bottom Line Criteria to Help You Choose Between Thermocouples and RTDs
The first question to ask yourself is what is the temperature range you are trying to monitor?
Generally, if the temperature is above a hundred and fifty degrees Celsius, a thermocouple would be used. For anything below a hundred and fifty degrees Celsius, an RTD would be used.
The next question to ask is what is the required sensor accuracy?
RTDs provide more accurate readings with repeatable results, this is why RTDs are typically used when temperatures are within its monitoring range.
The last question is what is the purchase budget and how many do you need?
Thermocouples can be up to three times less expensive than RTD probes making thermocouples a good choice when purchasing a large quantity or when the budget is tight
These three criteria are VERY basic, and intended just to point you in the right direction. There are many other differences between thermocouples and RTDs that need to be understood before application. Always consult a temperature sensor application expert prior to installing or specifying a thermocouple or RTD where failure can cause harm.
Duro-Sense Corporation
https://duro-sense.com
(310) 533-6877
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