SAW Sensor-based Temperature Control
of the Perpanent Magnets of Synchronous Motors
your advantages with the SAW-technology
- Temperature monitoring up to 300°C
- Up to 6 sensors simultaneously
- Wireless transmission over several meters
- In metallic environments
- Without batteries or energy harvesting
- 2,4 GHz ISM-Band transmission
- Various sensor shapes
- Individual antennas
- Temperature monitoring up to 300°C
- Up to 6 sensors simultaneously
- Wireless transmission over several meters
- In metallic environments
- Without batteries or energy harvesting
- 2,4 GHz ISM-Band transmission
- Various sensor shapes
- Individual antennas
Product description: Measurement variation in the Electric Motor
The tip_e-motion temperature sensor system is a wireless, passive sensor for use in synchronous motors for monitoring the temperature of permanent magnets in the electromagnetic field.
They enable temperature measurements on the product or on a reference board in motion, rotation, in the smallest of spaces or in mobile applications.
They enable temperature measurements in rotating applications in the smallest of spaces and function in strong electromagnetic alternating fields to protect permanent magnets from excessively high temperatures (Curie temperature). By using tip_e-motion, the electric motor can be permanently controlled in such a way that it precisely monitors the temperature and so the motor power can be used ideally.
The sensors are specified up to 300 ° C and are characterized with a long service life. Up to 6 sensors can be used with a measuring rate of up to 5 Hz. With optimized transmitting and receiving antennas from pro-micron, the system can be used individually in a wide variety of system types. The sensitive measuring system can show temperature changes of less than 0.05 Kelvin. The absolute system accuracy is specified with 1 Kelvin.
tip Brochure
Benefits:
- Direct measurement & monitoring of rotor and shaft temperature
- Suitable for metallic environments
- No “blind spots” thanks to broadband measurement
- Detuning the sensor-antenna oscillating circuit does not change the measured value
- No damage to ISM ligaments with multiple (up to 6) sensors (can be used worldwide)
- Different sensor forms
- Individual antennas
- Without battery or energy harvesting
tip_e-motion in Action - direct Measurement of the Motor Temperature on Permanent Magnets
Measurement variations in motor
Variation 1 - Rotor temperature:
• Sensor-antenna in rotor
• Reader-antenna on motor
Variation 2 - Shaft temperature:
• Sensor-antenna on the shaft
• Reader -antenna external
By individual adaptation of sensor design, packaging and antenna layout an optimized solution for the specific usage is realized
Benefits:
• Direct measuring & monitoring of rotor and shaft temperature possible
• Measuring area between -40°C and +300°C
• Suitable for metallic environments
• No „blind spots“ due to broadband measuring
• Detuning of the sensor-antenna oscillating circuit does not influence measured values
• No damage to ISM bands with multiple (up to 6) sensors (globally applicable)
• Different sensor shapes
• Individual antennas
• Without battery or energy harvesting
Ideally suited for use in automotive sector, especially through direct motortemperature measuring
Dr. Stefan Mühlbauer
Head of Business Unit tip300
Tel.: +49 8341 9560 - 644
stefan.muehlbauer(a)pro-micron.de
