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PDF HMC1512 Data sheet ( Hoja de datos )
| Número de pieza | HMC1512 | |
| Descripción | Magnetic Displacement Sensors | |
| Fabricantes | Honeywell | |
| Logotipo |  |
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Magnetic Displacement Sensors
HMC1501/1512
The Honeywell HMC1501 and HMC1512 are miniature surface mount sensors
for linear, angular, or rotary displacement designed for magnetic saturating field
sensing. The HMC1501 contains a single saturated-mode Wheatstone bridge
sense element that creates an output voltage with respect to the direction of
the magnetic flux passing over the sensor surface. The HMC1512 contains
dual saturated-mode Wheatstone bridge elements co-located to provide an
extended range of angular displacements. Both sensor types are cost effective and space-efficient solutions for high
volume OEM designs. Applications for the HMC15xx sensors include Position Sensing, Rotary speed and angle detection,
and non-contact precision location measurement systems.
The HMC15xx sensors utilize Honeywell’s Anisotropic Magnetoresistive (AMR) technology that provides advantages over
hall-effect based magnetic sensors. They are able to resolve better than tenths of a degree or tenths of millimeters,
withstand large variations in magnet-to-sensor gaps, and exhibit insensitivity to shocks and vibrations. Honeywell’s
Magnetic Sensors are among the most precision and reliable position sensors in the industry.
Honeywell continues to maintain product excellence and performance by introducing innovative solid-state magnetic
sensor solutions. These are highly reliable, top performance products that are delivered when promised. Honeywell’s
magnetic sensor solutions provide real solutions you can count on.
FEATURES
Wide Angular Range
Effective Linear Range
Absolute Sensing
Low Cost
Available in Tape & Reel Packaging
4-Element Wheatstone Bridges
Surface Mount Sensors
Low Voltage Operations (2.0V)
BENEFITS
HMC1501
HMC1512
–
–
Angular
Angular
range
range
of
of
±45°
±90°
with <0.07° resolution
with <0.05° resolution
>8mm when two sensors are mounted on two ends. Additional range
can be added through multiple sensor arrays
No indexing with exact position known.
Designed for High Volume, Cost Effective OEM Designs
High Volume OEM Assembly
Low Noise Passive Element Design
RoHS Compatible and suitable for High Speed SMT Assembly
Compatible for Battery Powered Applications
1 page  
HMC1501/1512
Vb
Applied Field Direction
M
R+ R
II
V
I M +-
M
R- R
MI
R- R
R+ R
+
Vb
-
GND
Basic Sensor Bridge Schematic
Both the HMC1501 and HMC1512 are designed to be used in saturation mode, with applied fields of 80 Oerstads or
greater, required to meet the specifications in this datasheet. The HMC1501 contains one bridge and the HMC1512 has
two identical bridges, coexisting on a single die. Bridge B is physically rotated 45° from bridge A. The HMC1501 has a
sensor output of V = - Vb*S sin (2 ), and the HMC1512 has a sensor output of V = Vb*S sin (2 ) for sensor A and
sensor B’s output is V = -Vb*S cos (2 ). Vb is the supply voltage, and S is a sensor constant determined by the
materials. For these Honeywell sensors, S is typically 12mV/V.
APPLICATION NOTES
The HMC1501 and HMC1512 are Honeywell’s AMR based magnetic position sensors that contain AMR sensor bridges to
be used in saturation mode. The HMC1501 contains one AMR bridge for a 45° range of position sensing, and the
HMC1512 contains two AMR bridges for a 90° range of position sensing. The bridge differential output voltage ( V) for
the HMC1501 is:
V = -Vs S sin (2 ) where:
Vs = Supply Voltage (volts)
S = Material Constant (12mV/V)
= Reference to Magnetic Field Angle (degrees)
With the bridges on the HMC1512 oriented 45° in rotation from each other, the differential output voltage for sensor
bridge A is:
VA = Vs S sin (2 )
And for sensor bridge B, the differential output voltage is:
VB = -Vs S cos (2 )
www.honeywell.com
5
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| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HMC1512.PDF ] | |
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