Related to "technical blogs"


Congratulations! you have completed the first step of the competition.

Now, the good news is for those who want to explore your writing skills in technical areas. With the intent of promoting advance sensor awareness among the younger generation, Rugged Monitoring is launching a young talent competition on technical writing. The objective of the competition is to encourage people in learning about new sensing technologies and be creative in writing technical blogs and articles.


The details of the competition are as follows: 


Start Date:  Aug 20th 2019


What’s next?


1)   Visit our page - Done

2)   Register here

3)   Choose the topic

4)   Follow Instructions

5)   Submit the blog to info@ruggedmonitoring.com 


       Topics to Choose

i.    Switchgear temperature monitoring using Fiber Optic Temperature Sensors

ii.   Applications of Fiber Optic Temperature sensors in Semiconductor Industry

iii.   Advantages of Fiber Optic Temperature Sensors in Microwave heating

iv.   Applications of Fiber Optic Temperature sensors in the Medical Industry


Instructions


i.    Written in good and readable English

ii.   Must be related to any one of the topics listed above.

iii.   Must cover the application and benefit of Fiber Optic Temperature Monitoring.

iv.   Must have a minimum of 600 words. Pictures or diagrams are useful and welcomed

v.   Must be original and free from plagiarism. A plagiarism check will be performed on all articles

vi.   Must be grammar error-free.

vii.  For reference - please visit our Blog and solutions page.

viii. Follow us on LinkedIn and Facebook for the latest updates on the competition and its results.


Last date for submission: Sep 15th 2019

Winner Announcement:  Sep 20th 2019


Benefits 


i.    Get a chance to participate in future blog content writing requirements

ii.   Get a chance to interact with our technical team for your queries.

iii.   A digital talent certificate from our Organization.

Description:


Congratulations! you have completed the first step of the competition.

Now, the good news is for those who want to explore your writing skills in technical areas. With the intent of promoting advance sensor awareness among the younger generation, Rugged Monitoring is launching a young talent competition on technical writing. The objective of the competition is to encourage people in learning about new sensing technologies and be creative in writing technical blogs and articles.


The details of the competition are as follows: 


Start Date:  Aug 20th 2019


What’s next?


1)   Visit our page - Done

2)   Register here

3)   Choose the topic

4)   Follow Instructions

5)   Submit the blog to info@ruggedmonitoring.com 


       Topics to Choose

i.    Switchgear temperature monitoring using Fiber Optic Temperature Sensors

ii.   Applications of Fiber Optic Temperature sensors in Semiconductor Industry

iii.   Advantages of Fiber Optic Temperature Sensors in Microwave heating

iv.   Applications of Fiber Optic Temperature sensors in the Medical Industry


Instructions


i.    Written in good and readable English

ii.   Must be related to any one of the topics listed above.

iii.   Must cover the application and benefit of Fiber Optic Temperature Monitoring.

iv.   Must have a minimum of 600 words. Pictures or diagrams are useful and welcomed

v.   Must be original and free from plagiarism. A plagiarism check will be performed on all articles

vi.   Must be grammar error-free.

vii.  For reference - please visit our Blog and solutions page.

viii. Follow us on LinkedIn and Facebook for the latest updates on the competition and its results.


Last date for submission: Sep 15th 2019

Winner Announcement:  Sep 20th 2019


Benefits 


i.    Get a chance to participate in future blog content writing requirements

ii.   Get a chance to interact with our technical team for your queries.

iii.   A digital talent certificate from our Organization.

Related Keyphrases:

Fiber Optic Temperature Sensorsii | Sep 15th 2019Winner Announcement | young talent competition | Medical IndustryInstructionsi | digital talent certificate | Semiconductor Industryiii | nbsp | advance sensor awareness | Sep 20th 2019Benefits | Follow Instructions5 | Microwave heatingiv | future blog content | Aug 20th 2019What | technical blogs

Thermocouples are widely used in automotive industry for temperature testing at product design and EOL (End of Line) stages and for permanent monitoring afterwards. However, with the increasing voltage levels in Emobility thermocouples possess many risks in product design and testing stages. Some of them are safety related risk and have potential to be life threatening for employees (research and test engineers).

Thermocouples are based on the principles, that a small voltage (in milli-volts) gets produced when a junction (joint) of two dissimilar metal wires is cooled or heated. The generated voltage signal is measured at the other end of the metal wires and calibrated for the temperature range. During the temperature testing the junction end is put on the test object and voltage is being measured at the other end to estimate the temperature of test object.

Now imagine if the two metal wires are put on the 1000 V Battery or Motor for temperature testing and somehow the test engineers touch the wire by mistake. Even worse how accurate will be the milli-volt signal when it passes through an environment where there is high electric and magnetic field.

Without getting into more technicality let us take a closer look on the common reasons why thermocouples have failed in Emobility testing and should be replaced with intrinsically safe sensors.

1. Safety

safety It is very obvious and common sensical thing to find out the safety risk of using thermocouples in Emobility testing, especially when test engineers have to adjust sensing location such as finding the right hot spot or reach to the measuring points that are not easily accessible (Inverters, Stator Windings, Battery Cooling duct). Thermocouples are subject to creating a short circuit and electrocution risks to the employees.


2. Noise

noiseWith the Emobility going towards 1000V and even higher 2500V (for commercial vehicles), thermocouples are highly susceptible to noise. The milli-volt signal requires lot of isolation under such large voltages and even then, the signal is not clear enough to measure accurate temperature.



3. Larger Size  

larger sizeThermocouples are not suitable for Emobility applications that has very tiny space for putting sensors such as Charging Points, Invertor IGBTs, Battery Inter-cell temperature measurement etc. It has been observed that thermocouples are less responsive and inaccurate (up to 20 to 30 Deg Celsius) if they are not put directly on the charging points. 


4. Non-Linearity Over The Range  

Non-Linearity Over The RangeThough the thermocouples are calibrated for a certain range, they still need complex compensation algorithm to maintain linearity over the range since they are being used at harsh conditions (High electric, chemical and magnetic fields) and different test environments.



5. Longer Response Time  

FLonger Response Time aster and accurate measurement is critical for Emobility during the performance, life cycle and abuse testing. Not only the accuracy, thermocouples are also limited by the response time requirements of Emobility applications such as detection of Thermal Runaway Issues, Charging Point Temperature, Stator Winding Temperature etc.


6. Poor Repeatability 

Poor Repeatability Thermocouples are made of two dissimilar metallic wires and susceptive to material purity which varies from batch to batch and manufacturer to manufacturer. This variation creates calibration issues resulting into non-repeatability of accurate measurements. Further the chemical composition of metal changes with time especially if they are put into chemical environment like Batteries.


Description:

Thermocouples are widely used in automotive industry for temperature testing at product design and EOL (End of Line) stages and for permanent monitoring afterwards. However, with the increasing voltage levels in Emobility thermocouples possess many risks in product design and testing stages. Some of them are safety related risk and have potential to be life threatening for employees (research and test engineers).

Thermocouples are based on the principles, that a small voltage (in milli-volts) gets produced when a junction (joint) of two dissimilar metal wires is cooled or heated. The generated voltage signal is measured at the other end of the metal wires and calibrated for the temperature range. During the temperature testing the junction end is put on the test object and voltage is being measured at the other end to estimate the temperature of test object.

Now imagine if the two metal wires are put on the 1000 V Battery or Motor for temperature testing and somehow the test engineers touch the wire by mistake. Even worse how accurate will be the milli-volt signal when it passes through an environment where there is high electric and magnetic field.

Without getting into more technicality let us take a closer look on the common reasons why thermocouples have failed in Emobility testing and should be replaced with intrinsically safe sensors.

1. Safety

safety It is very obvious and common sensical thing to find out the safety risk of using thermocouples in Emobility testing, especially when test engineers have to adjust sensing location such as finding the right hot spot or reach to the measuring points that are not easily accessible (Inverters, Stator Windings, Battery Cooling duct). Thermocouples are subject to creating a short circuit and electrocution risks to the employees.


2. Noise

noiseWith the Emobility going towards 1000V and even higher 2500V (for commercial vehicles), thermocouples are highly susceptible to noise. The milli-volt signal requires lot of isolation under such large voltages and even then, the signal is not clear enough to measure accurate temperature.



3. Larger Size  

larger sizeThermocouples are not suitable for Emobility applications that has very tiny space for putting sensors such as Charging Points, Invertor IGBTs, Battery Inter-cell temperature measurement etc. It has been observed that thermocouples are less responsive and inaccurate (up to 20 to 30 Deg Celsius) if they are not put directly on the charging points. 


4. Non-Linearity Over The Range  

Non-Linearity Over The RangeThough the thermocouples are calibrated for a certain range, they still need complex compensation algorithm to maintain linearity over the range since they are being used at harsh conditions (High electric, chemical and magnetic fields) and different test environments.



5. Longer Response Time  

FLonger Response Time aster and accurate measurement is critical for Emobility during the performance, life cycle and abuse testing. Not only the accuracy, thermocouples are also limited by the response time requirements of Emobility applications such as detection of Thermal Runaway Issues, Charging Point Temperature, Stator Winding Temperature etc.


6. Poor Repeatability 

Poor Repeatability Thermocouples are made of two dissimilar metallic wires and susceptive to material purity which varies from batch to batch and manufacturer to manufacturer. This variation creates calibration issues resulting into non-repeatability of accurate measurements. Further the chemical composition of metal changes with time especially if they are put into chemical environment like Batteries.


Related Keyphrases:

two dissimilar metal wires | two dissimilar metallic wires | Emobility thermocouples | permanent monitoring afterwards | generated voltage signal | temperature measurement | complex compensation algorithm | Emobility applications | Stator Winding Temperature | Charging Point Temperature | response time requirements | test engineers touch | temperature range | accurate measurements | accurate measurement