In
this Issue
• Cylinder Position Sensing with Dual-Threshold
Sensors
• Ultralow-Field Sensing
• Wearable Ballistocardiograph
• Upcoming Tradeshow
Cylinder Position Sensing with Dual-Threshold Sensors
New dual-threshold versions of our advanced magnetic switch sensors are ideal
for pneumatic cylinder limit controls.
Here are three demonstrations:
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| Cylinder
Limit Control |
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Cylinder
Speed Measurement |
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Protecting
an Egg |
Advanced Technology
ADA32124-10 magnetic switch
sensors use advanced sensing elements to eliminate double switching artifacts
in applications such as cylinder position sensing. The two thresholds can be used
to detect speed and direction, control end-of-travel speed, or tune ultraprecise
switching thresholds.
Rugged
The robust parts have an extended 150°C temperature range for harsh industrial
environments and operate from 4.5 to 30-volt power supplies. The sensor elements
can withstand magnetic fields up to 1400 mT without their operation being disturbed,
making them immune to the effects of high external currents or strong motor magnets.
Design Support
The new parts are in stock
and can be ordered online with no minimum order and flat-rate shipping.
 An
evaluation board
allows easy testing. The 3 mm wide board fits in narrow cylinder slots and includes
the sensor and LEDs to show the states of the two outputs. The board can be powered
with a 4.5 to 30-volt supply.
 A
6 mm wide bare board can be
used for wider cylinder slots (sensor sold separately).
Download the datasheet »
Independent Papers
Ultralow-Field
Sensing
 Manh,
et. al.," Ultrahigh
Sensitivity Magnetic Measurement System Based on Lock-In Amplifier Technique and
Giant Magnetoresistance Sensor," Vietnam Journal of Science and Technology,
March 25, 2025.
Part Used:
AA002-02E analog GMR
magnetometer sensor.
Excerpt:
"Experimental results showed that the device has a limit of detection of 3.81
nT... This magnetic field measurement system can detect the magnetism of superparamagnetic
nanoparticles associated with molecular biological targets, supporting the development
of biomedical analysis devices."
Wearable
Ballistocardiograph
Huang,
et. al., "Empowering Wearables
with Ballistocardiography-based Key Generation through Magnetic Field Vibration
Sensing," Proc. ACM Interact. Mobile Wearable Ubiquitous Technology,
March 2025.
Part Used:
AA002-02E analog GMR
magnetometer sensor.
Excerpt:
"The GMR sensor readings reflect the vibrational displacement of the magnet caused
by the skin vibration, thus reflecting the heartbeat signal. We observe that the
detection method based on the magnetic field vibration performs better compared
with the subtle biomagnetism. The GMR sensor readings exhibit obvious periodicity
and stability with a high signal-to-noise ratio."
More Independent Papers »
Upcoming Tradeshow
 NVE
will be exhibit at Sensors+Test, May 6 to May 8 in Nürnberg, Germany, booth
1-234 (an easy to remember booth number!). |
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