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The output of a rotary hall sensor is a voltage which
changes in direct proportion to the shaft angle. A constant voltage is required across the
supply and ground wires of the sensor.
No internal end stops are fitted, so continuous rotation is
possible. The sensor consists of a
Hall Effect element, a shaft and a magnet.
When the angular position of the sensor changes relative to the
magnet, the change In magnetic field in the sensor results in a change in
output voltage. Various measurement
angles are available, up to a maximum of 120°.
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Electrical
· Electrical
angle defined in order details
· Mechanical
angle defined in order details
· Precision
5.000V supply *
· Supply
current 10mA (max)
· Output
Voltage ** @ -60° = 0.1*** ±0.05V (@25°C)
· Output
Voltage ** @ +60° = 4.9*** ±0.05V (@25°C)
· Independent
non-linearity 1%FS typ, ±2%FS max
· Insulation
resistance >100Mohm @500Vdc
· Output
impedance 1ohm typ, 10ohm max (over temperature
range -40 to +170°C)
· Thermal
shift <±0.02%FS/°C (+25°C to +170°C)
· Half
voltage position tolerance ±2° typ, ±4° max
· Electrical
track length tolerance ±3°
* Sensor output is ratiometric
to supply voltage. To limit permanent
damage to the sensor, the supply voltage should not exceed 8.5V
** With respect to half voltage position
indicated on outline drawing
*** Angular end position voltages
programmable on request
Viewed from the end of the shaft,
clockwise rotation decreases the output voltage. Anticlockwise rotation with decreasing
output voltage available on request.
Cable and Connection Definition
· 24
AWG un-screened cable
· Cable
length is shown on the order details but any length is available on request
· Various
automotive and military standard connectors are available
· Connection
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Red
wire
Green
wire
White
wire
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Supply
Ground
Signal
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Application
· Non
contact rotary position measurement of throttle and trumpet
Mechanical
· O
ring shaft seal
· Body
Aluminium alloy, anodised and dyed black with stainless steel shaft
· Weight
less than 50g (including cable, where fitted)
· Aluminium
alloy cable boss for strain relief to the sensor body (if cable is fitted)
Design and manufacture is in-house, so if our existing
designs do not suit your application, we can provide cost effective
customised parts to suit even the most demanding application. No engineering charges are made for simple
modifications such as customer specific connectors, cable protection and
cable lengths. Please contact our
technical consultancy service who will be pleased to help.
Environmental
· Vibration
50Hz to 2500Hz @ 40g 8hrs per axis
· Resistant
to standard motorsport fluids
· Maximum
humidity 100%
· Viton jacketed cable
· Operating
temperature -40 to +170°C
The sensor may be permanently damaged if the shaft
is exposed to strong magnetic fields.
During operation, the sensor should be kept clear of stray magnetic
fields and ferro-magnetic materials.
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