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NVE sensors were used in
a sensing system for blast-induced traumatic brain injury, as reported in the
journal Nature.
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NVE will be
closed Thursday and Friday, December 24 and 25, and Friday, January 1. |
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| We wish our readers the
best this holiday season, and a successful 2016. |
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 Gear-Tooth
Sensor Demonstrator |
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AKL-Series gear-tooth
sensors are a simple, flexible rotational speed sensing solution. A new, easy-to-use
demonstrator lets engineers try out a simulated rotational sensing system.
Key AKL sensor features are:
• Large airgap
• 50% duty cycle
• DC (zero speed) operation
• Precise spacing between sensor elements
• Excellent temperature and voltage performance
• Small, low-profile surface mount package
AKL demonstrators are in
stock for immediate delivery.
Demonstrator
Manual >
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Application
Corner |
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Three-Wire
Digital Gear-Tooth Sensor
Three-Wire Digital Gear-Tooth Sensor
AKL-Series
Gear-Tooth Sensors have 4-to-8 mA two-wire interfaces.
The interface can be directly used in certain applications, but some application
require a three-wire configuration.
In the simple circuit above, when the current is 4 mA, the voltage across
the 100 ohm resistor is 0.4 V, not enough to turn on the transistor.
With 8 mA, the transistor turns on. Note that the supply voltage must be
at least 5.2 V to provide the sensor’s 4.5 V minimum Vcc.
We maintain factory inventory of three popular AKL-Series sensors:
The best spacing depends on the geometry of the gear and the sensor system. As
a starting point, the sensor element spacing can be one-fourth of the gear pitch.
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