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Magnetoresistive technology provides high signal clarity in an attractive cost effective package, with or without signal conditioning and it is available in two resolution packages.
Digitrac® Solid-state Single Magnetoresistive sensors with digital or analog output and true zero-speed capability provide valuable output by indicating relative position within the sensing area with an incremental position output.
Its unique magnetoresistive technology provides high signal clarity in an attractive cost effective package, with or without signal conditioning and it is available in two resolution packages.
These sensors are frequently used with single magnet targets in counting, function start/stop, or orientation alignment of mechanical and electronic indexing equipment applications. Contact Sales for more details on how Digitrac can fit your most demanding application.
Typical Specifications for Standard Resolution
Supply Voltage
5 Vdc
Supply Current
12 mA
Maximum Output
0.2 V low: 4.75 V high
Resolution
0.065"
Cutoff Frequency
20 kHz
Operating Temperature
-25°C to +80°C
Typical Specifications for High Resolution
Supply Voltage
12 Vdc
Supply Current
25 mA
Maximum Output
0.2 V low: 4.75 V high
Resolution
0.025"
Cutoff Frequency
-25°C to +80°C
Operating Temperature
-25°C to +80°C
Housing Material/Style Non Magnetic Stainless Steel, Plastic threaded or non-threaded, Aluminum, Molded, Stamped, Brazed. More than 30 standard terminal configurations available to your specification.
Bitrac™ Solid-state Dual Magnetoresistive sensors with digitized incremental position output takes the process one step further by indicating direction of target motion.
Direction is indicated by a second distinct output with two designated dc voltages. This bidirectional output is highly accurate and updated twice per cycle.
Available in two resolution versions Bitrac eliminates costly design and assembly functions and gives reliable, maintenance free performance from a single solid state magnetic sensor.
The sensor uses magnetoresistive rather than hall-effect technology, resulting in a strong primary input with no signal (and therefore no noise) amplification prior to conditioning.
The entire system circuitry benefits from Bitrac’s initially high signal-to-noise ratio and improved digital-output clarity, contact Sales to learn more about Dual Magnetoresistive sensors or complete our online questionnaire for a fast quote.
Typical Specifications for Standard Resolution
Supply Voltage Range
10-14 Vdc
Supply Current
70 mA maximum
Directional Outputs [fan out to 10 TTL inputs max.]
0.2 Vdc or 3 Vdc
Incremental Position Output (fan out to 20 TTL inputs maximum)
0.4 Vdc low
4.75 Vdc high
Duty Cycle
50 +/-10%
Resolution
0.065"
(equivalent to #12-pitch gear)
Cutoff Frequency
20 kHz
Operating Temperature
-25°C to +80°C
Typical Specifications for High Resolution
Supply Voltage
+/- 15 Vdc
Supply Current
80 mA maximum
Directional Outputs [fan out to 10 TTL inputs max.]
0.2 Vdc or 3 Vdc
Incremental Position Output (fan out to 20 TTL inputs maximum)
0.4 Vdc low
4.75 Vdc high
Duty Cycle
50 +/-10%
Resolution
0.025"
(equivalent to #32-pitch gear)
Cutoff Frequency
20 kHz
Operating Temperature
-25°C to +80°C
Housing Material/Style Non Magnetic Stainless Steel, Plastic threaded or non-threaded, Aluminum, Molded, Stamped, Brazed. More than 30 standard terminal configurations available to your specification.
A worldwide leader in the design and manufacture of electrical control and test equipment was looking to improve both performance and cost of an encoder used to measure counter clockwise rotation and phase shift.
The existing encoder used optoelectronics with surface mount components, photodiodes and LED’s, encapsulated in a mechanical housing. It was costly to manufacture and sensitive to EMC as well as temperature, vibration, dust and water.
Our experience with higher integrated electronic technologies allowed us to develop a design focused solution that was sensitive to the application. The new sensor consisted of a two magneto resistive elements with signal conditioning in a high resolution package.
The new product had none of the technical disadvantages of its predecessor, and met performance criteria at a lower unit test and development cost.
Supply Voltage (Vs)
+12 Vdc +/-10%
Supply Current
40 mA Typ.
Output Config.
Dual Channel Open Collector
NPN with 2K Ohm Internal Pull - Up to +Vs
Isolation
2000 Vdc Hi-Pot To Case
Output Voltage
VOH = .99(Vs) Min.
VOL= .4 Vdc Max. @ IOL=20 mA
Duty Cycle
50% +/-10%
Rise Time
5 uSEC Typ.
Fall Time
.2 uSEC Max.
Cutoff Frequency
20 KHz Max.
Target
Ferromagnetic 54 DP Gear
Speed Sensor Dual Digitrac 5V Standard Resolution
Used for forklift drum brake ABS slip and traction control, the sensor signals the control unit, which controls power to the electro-mechanical brake calipers, ensuring that the pad to rotor gap is precisely maintained, reducing brake drag and improving fuel economy.
Transducer High Resolution Magnetoresistive Sensor
Used in a night vision scope with an electronic image converter that is attached to ordinary binoculars allowing them to be used at night. The sensor is used to achieve accurate motion compensation enhancing visibility.
IC Assembly Magnetoresistive Sensor
Used in advanced automation IC assembly equipment to measure placement speed of dual-drive linear motors that automatically center the PCB’s between feeder banks for optimal balancing across the beams, trusted reliability and accuracy.
Dual Band Magnetoresistive Sensor Standard Resolution
Measures the platen gap in conjunction with impact parameters to control paper movement and impact force in line matrix printers used for mission critical printing, warehouse or supply chain management applications.
Position Sensor Single Digitrac 5V Standard Resolution
Used in a fixed path Automatic Guided Vehicle System (AGVS) to determine the vehicles position over wires embedded into a floor, if the vehicle is off center, to the left or right, the AGVS makes needed course correction achieving precise vehicle location.
Magnetoresistive Displacement Sensor
Used in a cylinder stroke displacement measuring system, the sensor provides sine and cosine quadrature outputs/counting pulses that results in incremental input for a tracking phase resolver, functional and reliable under all environmental conditions.
Motion Sensors for Custom and Standard Applications
Xensor (Sentech, Inc.)
2425 Maryland Road
Willow Grove, PA 19090
United States
215-887-8665
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