Gear Hall

Hall Effect Quadrature Sensor Specifications, Zero Speed Position Sensors

Download Spectec’s Hall Effect Quadrature Sensors Spec Sheet (PDF format) or the individual spec sheets below.

DIGISPEC Hall Effect Quadrature Sensors provide two digital output signals, 90º out of phase to each other, detecting speed (down to true zero speed) and direction of rotation of gear teeth and ferrous targets. Gear teeth as small as module 0.10″ wide can be sensed. Standard output is provided from a 2.2kOhm internal pull-down resistor to a collector, which can sink 25 mA. Open collector can be provided. Output is protected against reverse voltage.

Integrated temperature probe (RTD or NTC) magnetic Hall effect sensors are available.

Contact Spectec for custom hall effect gear tooth speed sensors or OEM replacement speed sensorsfor full details – or complete and submit our online Information Request Form.

Hall Effect Speed Sensors – Gear Tooth Sensors

• Frequency range: Zero speed to 20 kHz
• Air Gap: 0.050″ Typical, 0.25″ Max. depending on target mass and velocity.
• Temperature Range: 2TE -40 to 221° deg F (-40 to 105° deg C)
  3TE -40 to 300° deg F (-40 to 150° deg C)
• Supply Voltage: 4.0 to 30 Vdc
• Shell: 303 Stainless Steel. Other shell material available.
• Reliable in oily, wet and harsh environments;
• Rugged shock and vibration resistant construction;
• Available in all popular standard and metric thread and smooth shell sizes

Hall Effect Gear Tooth Sensors Specs

Specialized Hall Effect Gear Tooth Sensors for Ferrous Targets:

• Intrinsically Safe Hall effect gear tooth sensor
• Dual output
• Additional output for temperature also available
• Custom hall effect speed sensors
• Hermetically-sealed and sanitary for food processing applications
• Additional Output protection: Reverse voltage, short circuit, moderate lightning and 60V load dump

SPECTEC zero speed Hall effect gear tooth sensors are used in industrial applications to determine shaft or gear speed or direction by detecting fluctuations in the magnetic field.

The Hall effect technology fulfills a wide array of applications due to a Hall effect sensor’s ability to detect zero speed and the quadrature sensor’s ability to detect direction change. The Hall effect gear tooth sensor’s digital output is easily read by computers, motion control devices, position monitors and digital to analog converters.

Hall Effect Gear Tooth Sensors – Zero Speed Sensors – Digital Hall Sensor

SPECTEC’s digital Hall effect gear tooth sensors are engineered with an internal magnet to switch in the presence of ferrous targets such as gear teeth and blade tips and serve in applications calling for zero speed sensors. The Hall effect gear tooth sensor can detect fluctuations in the magnetic field and can also be configured to detect the either the presence or absence of a ferro-magnetic target (i.e. a gear tooth).

The Hall effect gear sensor has the ability to sense a ferrous target while applying zero drag on the target wheel with a sensitivity that detects gear teeth as small as 0.10″ wide and 0.10″ deep. Air gaps of up to 1/8 inch are possible, depending on mass of target (size of gear).

Hall Speed Sensors For Directional Sensing

The Hall effect quadrature sensor has the ability to detect the direction a ferrous target is traveling while applying zero drag on the target wheel. This quadrature Hall effect sensor has a sensitivity that detects gear teeth as small as 0.10″ wide and 0.10″ deep. Air gaps of up to 0.125″ inch are possible, depending on the size of the target gear.

SPECTEC’s line of Hall effect sensors include intrinsically safe, single output, dual output, additional output for temperature, hermetically sealed, sanitary and conduit mount. Standard output (NPN) is provided by a 2.2 K ohm internal resistor to a collector which can sink 25mA. In addition, PNP and open collector types are available in order to serve all logic needs.

Zero Speed Hall Effect Gear Tooth Sensor Applications:

Hall effect gear tooth sensor applications such as fine gears, detection of very low to zero speed and the change in target direction. Hall effect sensors are used as vehicle speed sensors, wheel speed sensors, in ABS brake systems and as camshaft sensors. Additional applications are flow metering and in vehicle transmissions.

Hall Effect Dual Output Sensors Specifications – Zero Speed Sensors

Download Spectec’s printable Hall Effect Dual Output Sensors Spec Sheet (PDF format):

Hall effect directional sensor – gear or ferrous targetHall Effect Dual Output Sensors are designed to switch in the presence of a ferrous target such as a gear tooth ≥ 24DP or module ≥ M1. Standard output is provided from a 2.2kOhm internal pull-up resistor to a collector, which can sink 25 mA. Open collector or source output is also available.

Sensors are also available with LED indicators. Integrated temperature probe (RTD or NTC) magnetic Hall effect sensors are available.

A robust universal sink/source NPN/PNP low impedance rail-to-rail output with 60V automotive load dump. Short circuit and reverse voltage protection is available.

Contact Spectec’s engineering and design team about custom dual output Hall effect speed sensors or OEM replacement speed sensors available – or complete and submit our online Information Request Form.