Related to "significant benefits"

Description:

Advantages of Fiber Optics: Fiber optic monitoring in wood drying provides significant benefits to traditional methods    


  • Test certificates for customer specification compliance    
  • Fiber optic sensors are immune to RF/ Microwave
  • Avoid RF waves burning the center of the beam
  • Continuous Monitoring for quality control  

Products used for this solution: Rugged Monitoring Products used in these applications 


  • Monitors: T 301
  • Sensors: Lsens – T, Rugged capillary
  • Software: Rugged Connect



Related Keyphrases:

customer specification compliance | Rugged Monitoring Products | beamContinuous Monitoring | Rugged capillarySoftware | Fiber optic monitoring | Fiber optic sensors | significant benefits | traditional methods | MicrowaveAvoid RF | Test certificates | quality control | Rugged Connect | MicrowaveAvoid | T 301Sensors | applications

The eMobility sector is going through its transformation phase. With the increasing focus on electric vehicle from the public and private sector, every player in the eMobility industry is working relentlessly on increasing the performance of the electric vehicle with higher efficiency, larger capacity and reduced size. The only objective of all this research and development is to make electric vehicle at par or even better than IC engines at a lower cost.

High Voltage EV Batteries, being the most critical component of the electric vehicle are the ones that are focused most for capacity enhancement, performance optimization and Cost/size reduction. Researchers in the entire value chain of EV Battery, Cell, Module and Pack level are constantly working on fast charging and capacity enhancement projects.

Introduction:

Battery thermal management is one of the most critical aspect in the design and development of EV Batteries for fast charging and capacity enhancement projects. The crucial steps involved in battery thermal management are first identifying the source of the heating, second localizing the weak points in the design and then finally managing thermal issues either with design changes or with better cooling mechanism. This article is mainly focused on Benefits of fiber optic sensor in core temperature monitoring of cylindrical cell.

Why Temperature Monitoring:

Under the fast charging (3C, 4C and more) and discharging (6C, 8C or more) cycles cylindrical cells face tremendous electrochemical and mechanical stress. As a result of these continuous stress, Cells heat up internally and heat gets transmitted to the outer surface in radial and axial directions. It becomes very crucial to understand the stress handling capability of cells under different operating conditions. The EV battery cells must be designed for a wide range of ambient and automotive operating conditions. Identifying thermal issues accurately, during the product development stage and mitigating them effectively is the key for avoiding the huge cost of product recall.  

Benefits of Fiber Optic Temperature Sensors:

Engineers have been using very small thermocouples to measure the thermal profiling of cylindrical cell core. In order to avoid damage to the cell chemical due to the thermocouples, the sensors are coated with a complex and expensive chemical isolation. The isolation process is complex and still not a full proof solution for safe and accurate temperature measurement of cell core. Therefore, Fiber Optic Temperature Sensors are the most suitable alternative to the thermocouples due to the following features of fiber optic sensors: 

  1. Ultra-Small footprint (0.4mm) to fit into Cell Core. This will ensure minimal damage to the mechanical structure of the cylindrical cell.
  2. Safety: Fiber optic sensors are made of silica, Polyimide, Gallium Arsenide (GaAs) crystal and very small Epoxy. Any of the constituents of the complete sensor does not pose any risk to the cell chemical.
  3. Accurate and Noise Free readings – The sensors have an accuracy of ±0.2???C (relative) with 100% repeatability. And this accuracy is not impacted by Strain / Pressure inside Cell.
  4. Wide Measurement Range: The rage of measurement is -269???C to +300???C.
  5. Higher Response Time: The sensors are capable of measuring with 5Hz to 30Hz sampling rate.
  6. Sensors Stability: These sensors are very stable under high electrical, Magnetic and Chemical fields.
  7. Lower cost of installation – The sensors do not need any expensive Isolation / coating. The sensors are also adjustable to fit at different locations inside the cell core.

How to install a Fiber Optic Temperature Sensor in Cylindrical cell Core?

Fiber Optic Temperature sensors can be installed either at the cell formation stage or afterwards. It is simple to fit the sensors during the cell formation stage compared to the fitting sensor on a manufactured cell core. Figure 1 below shows the detailed view of how the Fiber Optic Temperature Sensor installed into Cylindrical Cell Core.

 

  1. Bare Fiber Optic Sensor                                    b) Fiber Optic Sensor with Disposable Tip


                       Figure. 1 Fiber Optic Sensor installed inside the EV Battery Cell

During Cell Formation Stage:

This is a simple approach where Fiber Optic Temperature Sensor can be placed at the core of the cylindrical cell while the assembly process of the cell, before the formation stage. This will require to drill a hole in the cathode cap of the cell. After the formation process, the cathode cap opening must be sealed with silicone sealant, epoxy or Kapton tape.

Into Manufactured Cell:

To install a Fiber Optic Temperature sensor on the readymade Battery cell, requires the use of a drill and glove box. Firstly, it will require to disassemble approximately 8 to 10 cells to find out the internal structure of the cell type. Once the internal structure of the cell is determined a new cell can be placed on the Glove Box for drilling hole. The Glove box is used to prevent the exposure of cell internals to oxygen (O2) and moisture (H2O). A sharp and high precision drill is used to drill a small hole into the cell core. The hole must be as small as possible so that it does not impact the cell electrochemical behavior. Care must be taken while drilling the hole to avoid short circuit and protect the electrode jellyroll.

The easiest option for drilling hole is, open the cathode and drill hole on the plastic protection and insert the fiber optic sensor inside the core. The opening must be sealed with special glue and tape to make it hermetically sealed without damaging the Fiber Optic Temperature Sensor.

Disposable Caps (made of Polyimide material) can also be used to fit into the hole first and then insert the fiber optic temperature sensor, as shown in Figure 1 (b) above.

The fiber optic temperature sensors than can be connected to the monitor for temperature measurement and trending. The monitor has flexibility to record the temperature data, display time-stamped trending and export data to third party systems. The monitor supports industry-standard protocols i.e. High-Speed CANBUS, Modbus, DNP3.0 and comes with drivers for major development environments i.e. Matlab, LabView and python. The below figure 02 shows the sensors and monitor installation.

 Conclusion:

The Fiber Optic Temperature Sensor is the most suitable sensors to use inside the battery cell for Cell Core temperature monitoring. The process of installing the fiber optic temperature sensors is easier than the one used for traditional sensors because fiber optic temperature sensors do not require any isolation. With higher accuracy, repeatability and response of fiber optic temperature sensors, it has become possible to understand better the chemical process inside and identify the real causes of temperature increase. It was found from multiple experiments that the Cell Core temperature is mostly higher than the cell body temperature and the difference is not constant but varies with the charging and discharging rate. The core temperature is maximum during the end of charging and discharging. The difference between the core and cell body temperature could be anywhere from 1???C up to 8???C.

Temperature monitoring of the core cell becomes very critical for fast charging applications. The outcomes of the Cell Core temperature monitoring are being used for battery modelling, Battery Management System and thermal protection of battery cell, module and the entire pack. The accurate Core Cell temperature ensures that thermal safety limits are set correctly to avoid thermal runaway issues.


Description:

The eMobility sector is going through its transformation phase. With the increasing focus on electric vehicle from the public and private sector, every player in the eMobility industry is working relentlessly on increasing the performance of the electric vehicle with higher efficiency, larger capacity and reduced size. The only objective of all this research and development is to make electric vehicle at par or even better than IC engines at a lower cost.

High Voltage EV Batteries, being the most critical component of the electric vehicle are the ones that are focused most for capacity enhancement, performance optimization and Cost/size reduction. Researchers in the entire value chain of EV Battery, Cell, Module and Pack level are constantly working on fast charging and capacity enhancement projects.

Introduction:

Battery thermal management is one of the most critical aspect in the design and development of EV Batteries for fast charging and capacity enhancement projects. The crucial steps involved in battery thermal management are first identifying the source of the heating, second localizing the weak points in the design and then finally managing thermal issues either with design changes or with better cooling mechanism. This article is mainly focused on Benefits of fiber optic sensor in core temperature monitoring of cylindrical cell.

Why Temperature Monitoring:

Under the fast charging (3C, 4C and more) and discharging (6C, 8C or more) cycles cylindrical cells face tremendous electrochemical and mechanical stress. As a result of these continuous stress, Cells heat up internally and heat gets transmitted to the outer surface in radial and axial directions. It becomes very crucial to understand the stress handling capability of cells under different operating conditions. The EV battery cells must be designed for a wide range of ambient and automotive operating conditions. Identifying thermal issues accurately, during the product development stage and mitigating them effectively is the key for avoiding the huge cost of product recall.  

Benefits of Fiber Optic Temperature Sensors:

Engineers have been using very small thermocouples to measure the thermal profiling of cylindrical cell core. In order to avoid damage to the cell chemical due to the thermocouples, the sensors are coated with a complex and expensive chemical isolation. The isolation process is complex and still not a full proof solution for safe and accurate temperature measurement of cell core. Therefore, Fiber Optic Temperature Sensors are the most suitable alternative to the thermocouples due to the following features of fiber optic sensors: 

  1. Ultra-Small footprint (0.4mm) to fit into Cell Core. This will ensure minimal damage to the mechanical structure of the cylindrical cell.
  2. Safety: Fiber optic sensors are made of silica, Polyimide, Gallium Arsenide (GaAs) crystal and very small Epoxy. Any of the constituents of the complete sensor does not pose any risk to the cell chemical.
  3. Accurate and Noise Free readings – The sensors have an accuracy of ±0.2???C (relative) with 100% repeatability. And this accuracy is not impacted by Strain / Pressure inside Cell.
  4. Wide Measurement Range: The rage of measurement is -269???C to +300???C.
  5. Higher Response Time: The sensors are capable of measuring with 5Hz to 30Hz sampling rate.
  6. Sensors Stability: These sensors are very stable under high electrical, Magnetic and Chemical fields.
  7. Lower cost of installation – The sensors do not need any expensive Isolation / coating. The sensors are also adjustable to fit at different locations inside the cell core.

How to install a Fiber Optic Temperature Sensor in Cylindrical cell Core?

Fiber Optic Temperature sensors can be installed either at the cell formation stage or afterwards. It is simple to fit the sensors during the cell formation stage compared to the fitting sensor on a manufactured cell core. Figure 1 below shows the detailed view of how the Fiber Optic Temperature Sensor installed into Cylindrical Cell Core.

 

  1. Bare Fiber Optic Sensor                                    b) Fiber Optic Sensor with Disposable Tip


                       Figure. 1 Fiber Optic Sensor installed inside the EV Battery Cell

During Cell Formation Stage:

This is a simple approach where Fiber Optic Temperature Sensor can be placed at the core of the cylindrical cell while the assembly process of the cell, before the formation stage. This will require to drill a hole in the cathode cap of the cell. After the formation process, the cathode cap opening must be sealed with silicone sealant, epoxy or Kapton tape.

Into Manufactured Cell:

To install a Fiber Optic Temperature sensor on the readymade Battery cell, requires the use of a drill and glove box. Firstly, it will require to disassemble approximately 8 to 10 cells to find out the internal structure of the cell type. Once the internal structure of the cell is determined a new cell can be placed on the Glove Box for drilling hole. The Glove box is used to prevent the exposure of cell internals to oxygen (O2) and moisture (H2O). A sharp and high precision drill is used to drill a small hole into the cell core. The hole must be as small as possible so that it does not impact the cell electrochemical behavior. Care must be taken while drilling the hole to avoid short circuit and protect the electrode jellyroll.

The easiest option for drilling hole is, open the cathode and drill hole on the plastic protection and insert the fiber optic sensor inside the core. The opening must be sealed with special glue and tape to make it hermetically sealed without damaging the Fiber Optic Temperature Sensor.

Disposable Caps (made of Polyimide material) can also be used to fit into the hole first and then insert the fiber optic temperature sensor, as shown in Figure 1 (b) above.

The fiber optic temperature sensors than can be connected to the monitor for temperature measurement and trending. The monitor has flexibility to record the temperature data, display time-stamped trending and export data to third party systems. The monitor supports industry-standard protocols i.e. High-Speed CANBUS, Modbus, DNP3.0 and comes with drivers for major development environments i.e. Matlab, LabView and python. The below figure 02 shows the sensors and monitor installation.

 Conclusion:

The Fiber Optic Temperature Sensor is the most suitable sensors to use inside the battery cell for Cell Core temperature monitoring. The process of installing the fiber optic temperature sensors is easier than the one used for traditional sensors because fiber optic temperature sensors do not require any isolation. With higher accuracy, repeatability and response of fiber optic temperature sensors, it has become possible to understand better the chemical process inside and identify the real causes of temperature increase. It was found from multiple experiments that the Cell Core temperature is mostly higher than the cell body temperature and the difference is not constant but varies with the charging and discharging rate. The core temperature is maximum during the end of charging and discharging. The difference between the core and cell body temperature could be anywhere from 1???C up to 8???C.

Temperature monitoring of the core cell becomes very critical for fast charging applications. The outcomes of the Cell Core temperature monitoring are being used for battery modelling, Battery Management System and thermal protection of battery cell, module and the entire pack. The accurate Core Cell temperature ensures that thermal safety limits are set correctly to avoid thermal runaway issues.


Related Keyphrases:

Fiber Optic Temperature Sensors | Cell Core temperature monitoring | accurate Core Cell temperature | cell body temperature | EV Battery CellDuring Cell Formation Stage | 1 Fiber Optic Sensor | Bare Fiber Optic Sensor | cell electrochemical behavior | accurate temperature measurement | Cylindrical cell Core | cell formation stage | readymade Battery cell | fiber optic sensors | cell chemical due | fiber optic sensor inside


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

Description:

Solution

With the currently available technologies Fiber Optic Temperature sensors stand out clearly to be the most suitable sensors for Emobility applications at higher voltages (250V+). The major benefits of Fiber optic Temperature sensors are: 

1. Safety: Fiber optics are safe – highest dielectric strength, ~1pC, tested up to 1500kV

2. Noise: Sensor are immune to electric, chemical and magnetic environments. Being used without any isolation, in applications that has 1500kV+ voltage, up to 25 Tesla magnetic field and chemical environment ranging from 0 to 14pH without any interference to the sensory readings.

3. Size: Ultra small sensors (Diameter of up to 0.4mm) to fit into tiniest spaces. 

4. Linearity: Fiber optic sensors transmit light signals through glass, the purest form of silica. The sensors are linear and does not need any compensation and special algorithms.

5. Response Time: Fiber optic temperature system has a milliseconds response level. Response rate varies between 1ms to 200ms depending on the type of monitor selected for the application. 

6. Repeatability: Fiber Optic temperature sensors are very stable and repeatable over the entire range without getting influenced by and external fields.

Related Keyphrases:

available technologies Fiber Optic Temperature sensors | Fiber optic temperature system | Fiber optic sensors | Ultra small sensors | 25 Tesla magnetic field | Emobility applications | magnetic environments | suitable sensors | Response rate varies | chemical environment | dielectric strength | Fiber optics | external fields | major benefits

Description:

Solution: Rugged Fiber Optic Temperature Sensors

With the currently available technologies Fiber Optic Temperature sensors stand out clearly to be the most suitable sensors for Emobility applications at higher voltages (250V+). The major benefits of Fiber optic Temperature sensors are:

  1. Safety: Fiber optics are safe – highest dielectric strength, ~1pC, tested up to 1500kV
  2. Noise: Sensor are immune to electric, chemical and magnetic environments. Being used without any isolation, in applications that has 1500kV+ voltage, up to 25 Tesla magnetic field and chemical environment ranging from 0 to 14pH without any interference to the sensory readings.
  3. Size: Ultra small sensors (Diameter of up to 0.4mm) to fit into tiniest spaces.
  4. Linearity: Fiber optic sensors transmit light signals through glass, the purest form of silica. The sensors are linear and does not need any compensation and special algorithms.
  5. Response Time: Fiber optic temperature system has a milliseconds response level. Response rate varies between 1ms to 200ms depending on the type of monitor selected for the application.
  6. Repeatability: Fiber Optic temperature sensors are very stable and repeatable over the entire range without getting influenced by and external fields.

Related Keyphrases:

available technologies Fiber Optic Temperature sensors | Fiber Optic Temperature SensorsWith | Fiber optic temperature system | Fiber optic sensors | Ultra small sensors | 25 Tesla magnetic field | Emobility applications | magnetic environments | suitable sensors | Response rate varies | chemical environment | dielectric strength | Fiber optics | external fields | response level

Description:

Why Wood drying

In the wood industry, wood is dried

• Remove moisture

• Improve structural integrity to avoid damage from shrinkage

• Control the color, shape

• Elimination of living organisms like insects and parasites.

Advantages of Microwave/RF Drying

• Fast drying ( 2 days in a Kiln instead of 2 month in the back yard ) 

• The most homogeneous drying process

• Minimize danger of cracks, shape and changing the color of wood

• Avoiding burning the center of the beam


Chemical free

• Methyl bromide (MeBr) has been widely used to decontaminate wood infected by living organisms.

• MeBr is highly toxic and depletes the stratospheric ozone layer, the use of Microwave is non toxic and eco friendly

Typical Customers

• Wood processors

• Wood Exporters

• Furniture manufacturers

• Shipping material providers

Advantages of Fiber Optics

Fiber optic monitoring in wood drying provides significant benefits to traditional methods

• Test certificates for customer specification compliance

• Fiber optic sensors are immune to RF/ Microwave

• Avoid RF waves burning the center of the beam

• Continuous Monitoring for quality control

Advantages of Fiber Optics

Fiber optic monitoring in wood drying provides significant benefits to traditional methods


• Sensors 

• Monitors

• Softwarea






Related Keyphrases:

Fiber OpticsFiber optic monitoring | customer specification compliance | Improve structural integrity | material providersAdvantages | stratospheric ozone layer | friendlyTypical Customers | quality controlAdvantages | decontaminate wood | Fiber optic sensors | Furniture manufacturers | significant benefits | Continuous Monitoring | traditional methods | bull | wood industry