Fiber Optic Sensors for Temperature Measurement in Emobility

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RM Fiber Optic Solutions for Emobility Segment
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RM Fiber Optic Solutions for Emobility Segment
Electric Cars
Electric Trucks
Electric Buses
Electric Off-Road Veh
Railways
Electric Vans
Emobility
Aeroplanes
Drones
Electric Boats
Electric Ships
Charging Stations
Charging Centers
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Why Fiber Optics Now?

• Electric vehicles are going to 1000V, 700A for
  cars and 2400V, 1000A for trucks
• Traditional thermocouples are too slow and
  significant limitation above 200V
• Thermocouple output is in millivolts and gets
  affected by Electric and Magnetic fields
• Safety Risk from Thermocouples Risk of short
  circuit at higher voltages, Corrosion etc.
• Thermocouples are Non-Linear Sensors are
  non-linear, require complex compensation
• Thermocouples are large not suitable to fit into
  tiny spaces on PCBs, Power Electronics, Charging
  Points
• Slower Response Thermocouples are not fast
  enough for accurate thermal profiling
• Variation from Batch to Batch Impact accuracy
  and repeatability of testing
• Susceptible to High Voltage and Magnetic Fields
• Thermocouples are not suitable for Explosive
  Environments
• Thermocouples are not suitable with longer signal
  cables

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E-Mobility Applications
Sensing Solutions for
Battery Simulation
Battery Test Stands
Motor Testing
Power Train Testing
Power Electronics
Li-ion Battery packs
Power Cables
Fast Chargers
Leading Temperature, Pressure, Vibration, Partial
discharge sensing solutions for E-Mobility
segments that are undergoing major design
transformations with EVs.
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Emobility Components Tested with Fiber Optic
Sensors
Battery and BMS
Charging Plug
Power Electronics
HV Cables, Terminations and Joints
EV Motors
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Fiber Optic Temperature Solutions EV Motors

• Solution for all kinds of EV Motors and
  Drivetrains

Permanent Magnet Synchronous Motors (PMSM)
DC Motors Series and Brushless
Switched Reluctance Motors
Induction Motors
Series Motors (PMDC)
Radial Flux PMSM
Squirrel Cage
SRM-Motor
Brushless DC (BLDC)
Axial Flux PSMS
Slip Ring
SRM - Motor
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Fiber Optic Temperature Solutions EV Motors

• Why Temperature Testing and Monitoring in EV
  Motors?
• 30-40 of all failures in Induction Motors are
  related to Winding Insulation Breakdown
• High Temperature is mainly responsible for
  degradation of Winding Insulation
• Winding Insulation Breakdown results into
  significant thermal stress Start of a Vicious
  Cycle
• Higher Power Density of EV/HEV Motor drive
  systems further increases the risk of Thermal
  Stress
• EV/HEV Motors are susceptible to aging effects
  due to high motor loads encountered in
• Harsh Environments Steep Terrains, High Payload,
  High Ambient Temperature
• Rapid accelerations and breaking

• Effective Countermeasures in Practice
• Design Optimization and Stress Testing at Product
  Development Stage
• Accurate Motor Thermal Profiling
• Precise localization of weak points in insulation
  system
• Maximize Cooling System Efficiency
• Identify the Performance Limits of Motor
  accurately
• Accurate analytics for remaining design life and
  identification of incipient failure conditions
• Effective machine thermal control and Protection
• Design Refinement / Optimization based on filed
  data