GVS-001 Hall-Effect Gear Speed SensorDescription GVS
Series Tooth Sensors use a magnetically biased Hall effect
integrated circuit to accurately sense movement of ferrous metal
targets. This specially designed I.C., with discrete capacitor and
bias magnet, is sealed in a probe type package for physical
protection and cost effective installation. Output is digital,
current sinking (open Collector). Reverse polarity protection is
standard. If power is inadvertently wired backwards, the sensor
will not be damaged. Optimum sensor performance is dependent on the
following variables which must be considered in combination: Target
material, geometry, and speed Sensor/target gap Ambient temperature
Magnetic material in close proximity Features Senses ferrous metal
targets Digital current sinking output (open collector) Better
signal-to-noise ratio than variable reluctance sensors, excellent
low speed performance, output amplitude not dependent on RPM Sensor
electronically self-adjusts to slight variations in runout and
variations in temperature, simplifying installation and maintenance
Fast operating speed - over 100 kHz EMI resistant Reverse polarity
protection and transient protection (integrated into Hall I.C.)
Wide continuous operating temperature range Typical
Applications Automotive and Heavy Duty Vehicles:Camshaft and
crankshaft speed/position Transmission speed Tachometers
Anti-skid/traction control, ABS
system Industrial: Sprocket speed Chain link conveyor
speed and distance Stop motion detector High speed low cost
proximity Tachometers, Counters Gear tooth Sensor
Specifications All values were measured using 1 K pull-up
resistor. Electrical Supply Voltage 4.5 to 24 VDC Output Voltage
(output low) 0.4 V max. Output Current (output high) 10 µA max.
leakage into sensor Switching Time Rise (10 to 90%) 15 µsec.
max.Fall (90 to 10%) 1.0 µsec. max. Absolute Supply Voltage (Vs)
±30 VDC continuous Maximum Voltage Externally Applied Ratings To
Output (output high) -0.5 to +30 V Output Current 40 mA sinking
Temperature RangeStorage -40 to 150°C (-40 to 302°F)Operating -40
to 150° C (-40to302°F) Switching Operate Point 3.7±1.25° (3,28±1,13
mm)Characteristics Release Point 4.7±2.50° (4,16±2,21
mm)Differential Travel 8.4±3.70° (7,45±3,34 mm) Target refrence and
conditions The Target Guidelines table provides basic parameters
when an application is not restricted to a specific target. Any
target wheel that exceeds the follow-ing minimum specifications can
be sensed over the entire temperature range of -40° to 150°C with
any sensing gap up to 2,0mm. This data is based on a 102 mm
diameter wheel, rotating 10 to 3600 RPM.Reference Target
Dimensions Tooth Height: .200 in. (5,06 mm) min. Tooth Width:
.100 in. (2,54 mm) min. Tooth Spacing: .400 in. (10,16 mm) min.
Target Thickness: .250 in. (6,35 mm) Characteristics will vary due
to target size, geometry, location, and material. Sensor
specifications were derived using a cold-rolled steel reference
target. See table, for reference target configuration and
evaluation conditions. Target Diameter: 4 inch. (101,6 mm) Tooth
Width: .350 inch. (8,89 mm)Thickness: .250 inch. (6,35 mm) Test
Conditions Air Gap: .040 to .080 inch. (1,02 to 2,03 mm)Power
Supply: 4.5 to 24 VdcRPM: 10 min., 3600 max.Mounting dimension (For
reference only) Photos/* January 22, 2024 19:08:37
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