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Sensors/Transducers and Instruments
Products of Sensors and Instruments
Hall Switches/Sensors/Elements
 Hall Linear ICs & Elements
 Unipolar Hall Switch ICs
 Bipolar Hall Switch ICs
 Hall Gear Tooth Sensor ICs
Hall Current Sensors/Transducers
 Closed Loop Sensors (PCB Mounting)
 Closed Loop Sensors (Rectangle Window)
 Closed Loop Sensors (Round Window)
 Open Loop Sensors (PCB Mounting)
 Open Loop Sensors (Rectangle Window)
 Open Loop Sensors (Round Window)
 Digital Hall Current Sensors
Electromagnetic Sensors and Switchs
 Hall Voltage Sensors/Transducers
 Hall Vane Speed Sensors
 Hall Gear Tooth Speed Sensors
 Hall Proximity Switches
 Magnetoresistive Speed Sensors
 Tunneling Magnetoresistive Switches
Current and Voltage Sensors/Transformers
 DC Current Sensors/Transducers
 AC Current Sensors/Transducers
 Leakage Current Sensors/Transducers
 AC Current Transformers
 DC Voltage Sensors/Transducers
 AC Voltage Sensors/Transducers
Measuring Devices and Instruments
 Magnetic Measuring Instruments/Devices
 Electric Measuring Instruments/Devices
 New Products of Sensors/Instruments

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Magnetoresistive Sensors and Switch ICs

Differential Magnetoresistive Sensors
The differential magnetoresistive sensor consists of two series coupled magneto resistors (D-type InSb/NiSb semiconductor resistors whose value can be magnetically controlled), which are mounted onto an insulated ferrite substrate. The sensor is encapsulated in a metallic or plastic package and has 3 connection terminals. The basic resistance of the total system is 2 x 600Ω. A permanent magnet, which supplies a biasing magnetic field, is fixed on the base of the sensor.

Our Sensors CY-DMR01H and CY-DMR-02H are replacements of Siemens sensors (FP212D250-22, FP210D250-22, FP210L100-22, FP212L100-22).

Sensor Features
  • Sensing over wide rotation speed range
  • Robust metallic housing
  • Signal amplitude is speed independent
  • Biasing magnet built-in
  • Best suited for harsh environments
Typical applications
  • Speed detection
  • Position detection
  • Rotation detection
  • Angle encoder
  • Linear position sensing

Tunneling Magnetoresistive Switches
The TMR elements were recently introduced as a new type of magnetoresistive sensor for industry applications. They are constructed as a magnetic multilayer film material. TMR magnetic field sensing elements exhibit a greater change in resistivity, as a function of applied magnetic field induction. Comparison to Hall Effect, AMR and GMR elements, a TMR element has better temperature stability, higher sensitivity, lower power consumption, better linearity, and doesn't need additional flux concentrator for increasing sensitivity.

Sensor Features
  • High Sensitivity, Low magnetic Switching Points
  • Ultra Low Power Consumption (at 1.5ľA)
  • Wide Range of Supply Voltage
  • Excellent Consistency at Operating Point
  • Excellent Thermal Stability
  • High Speed Detection and High Frequency Response
  • High ESD Tolerance etc.
Typical applications
  • Water, Gas and Heat Meters
  • Electricity Meters
  • Contactless Magnetic Switches
  • Industrial Proximity Sensing
  • Pneumatic Cylinder Sensing
  • Liquid Level Sensing
  • Motor and fan Control
  • Wireless Door/Window Switches etc.

Technologies GmbH & Co. KG
Markt Schwabener Str. 8
85464 Finsing, Germany
Tel.: +49-(0)8121-2574100
Fax: +49-(0)8121-2574101
Email: info@chenyang.de
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