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Exposed linear encoders are designed for use on machines and installations that require especially high accuracy of the measured value.
Typical applications include:
Measuring and production equipment in the semiconductor industry
PCB assembly machines
Ultra-precision machines
High-accuracy machine tools
Measuring machines and comparators, measuring microscopes, and other precision measuring devices
Direct drives
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The linear encoder is used to convert linear displacements of machine key components into electrical signals containing information about the value and direction of the displacement. Common applications include coordinate and precision machine tools, coordinate measuring machines, microscopes and other high precision equipment.
The system consists of an exposed scale and an encoder read head that works on the transmitted light principle. The scanning portion of the head self-aligns with the scale and thus maintains a constant gap between scanning unit and scale. The glass scale has a grating with two line tracks. One track is the periodic graduation with a constant line pitch of 20 µm. The second contains a reference mark, which can be located 40 mm from either end, from both ends, or in the middle of the measurement range. Unique location of reference marks can also be supplied upon request.
Model BE163C
Design: Exposed;
Measuring length, mm: from 120 to 1020
Grating pitch, µm: 20;
Resolution, µm: 0.2; 0.5; 1.0;
Output signals/Power supply: ~11 µApp /+5V;
Accuracy, µm/m: ±1; ± 2; ±3.
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High precision position feedback solutions, including high speed optical linear encoders, precision angle encoders, robust rotary magnetic encoders and a range of laser interferometers.
As well as offering unrivalled performance, Renishaw's non-contact encoder systems have an established reputation for being easy to set-up and install.
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MS 30
Open Linear Encoder
with single-field scanning principle
- easy mounting as a result of large mounting tolerances
- high insensitivity to contamination
- true reference mark (accurate and repeatable from both traversing directions)
- two independent switch signals (optical) for individual functions
- Integrated subdividing electronics up to times 100 interpolation /li>
- max. measuring length 3240 mm
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The FOD is a fiber optic linear position and displacement sensor that provides high accuracy, absolute measurements of position and displacement. The FOD is well suited for difficult to reach locations and hazardous environments such as those containing explosive materials
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AI-Tek has taken its years of experience of designing and manufacturing Hall Effect sensors for engine timing applications and has developed a line of durable products for industrial use.
With multiple standard variations we offer the widest range of standard catalog sensors to meet your various design needs. The design is flexible to easily meet all of your application requirements.
The Hall Effect sensor can sense each change in target movement, regardless of speed, from near zero to 15 kHz frequency range, generating a steady pulse train of frequency proportional to target speed. Typically, each time a gear tooth (or any ferrous discontinuity) passes in front of the sensor the output changes state. This type of sensor is known as a "P" type because it uses N-P-N transistor logic (as opposed to "N" type, which uses P-N-P transistor logic).
Key features to note are:
- Reverse voltage protection, up to -30 Vdc, to prevent damage if miswired
- Higher temperature range of -40°C to +125°C
- Wide range of supply voltage in single design of 4.5 - 24 Vdc
- Two output options of Supply Tracking or TTL Compatible
- Rugged design meeting IEC 77 Standards (European Railroad Applications)
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Hall-Effect Zero Speed Sensor (HS)
Non-contact magnetic sensors that measure the distortion of magnetic field created by a ferrous target. Hall-Effect Zero speed sensors provide very precise measurements of movement even at zero speed which makes the Hall-Effect zero speed sensors ideal for speed measurements. Hall-effect zero speed sensors provide digital output with constant amplitude signal regardless of variation of the speed.
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GVS series Gear tooth sensor provides speed sensing capabilities using an integrated Hall-effect sensor in conjunction with a permanent magnet which supplies a bias field, this ready-to use pick-up directly senses rotating ferrous gear and other similar gear type target. GVS speed sensor is a non-contact, solid state ferrous detecting device with a switched output. Its unique design provides a low cost solution for a wide range of speed sensing applications, especially those requiring true zero speed performance. This device utilizes a Hall Effect sensor that is internally biased with a permanent magnet and detects the interaction from an external ferrous target. Unlike earlier Hall based products, this device automatically detects changes in target position or symmetry to compensates for these changes. This specialized feature eliminates the need to externally calibrate or mechanically adjust each sensor for optimum performance. In addition, electronic hysteresis built into the device eliminates false triggering due to mechanical backlash and vibration.
Features:
Digital Output Signal
Gear Tooth Sensing Capability
No Rotary Orientation Concerns
Operation from –40°C to 125°C
Short Circuit Protection
Zero Speed Operation
High Speed (15kHz) Operation
6.3-24 VDC Operation
Nickel plated, Brass housing
PVC jacketed cable
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Wheel Speed Sensor, Gear Speed Sensor : Hall Effect Speed Sensors
Gill Speed Sensors use a dual element hall effect device to detect changing magnetic fields in the presence of a toothed ferrous metal target wheel. Tried and proven in F1 championship gearboxes, our speed sensors are suitable for either gearbox or wheel speed sensing.
With robust fully encapsulated constructions, unique internal designs and sealing methods, the sensors may be fully immersed in oil at high temperature without reduction in performance.
We currently have several differential speed sensor designs available and have the ability to rapidly produce custom products if required.
- Zero Speed to 20KHz
- No Moving Sensor Parts
- High Temperature Operation to 150°C
- Robust
- Thermally Stable
- Compact
- Lightweight
- Custom Designs Available
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The 907 XP (explosion-proof) Hall-effect sensor produces a digital pulse signal for use with speed switches, tachometers, counters, signal conditioners, or can be used as a direct pulse generator.
As a pulser disc or split collar wrap (mounted on the monitored shaft) rotates, the target magnets pass in front of the sensor. The Hall-effect sensor switches high and low as it is exposed to the alternating polarity of the magnets on the disc or wrap, producing a digital pulse output.
The recommended gap distance between the sensor and pulse generator is 1/4 inch +/- 1/8 inch. The gap flexibility makes the sensors tolerant of vibration, slight shaft run-out, minor misalignment, and other industrial elements. The 907 XP sensors are used in applications requiring explosion-proof ratings, or in applications where the sensor may be subject to abuse.
The sensors can be mounted up to 1500 feet from the control unit - speed switch, tachometer, etc. They are powered by 5-25 Vdc and provide an NPN Open Collector output. The 907 XP sensor has an XLB-3 enclosure which is C.S.A. approved and UL rated for Class I Group D; Class II Group E, F, G; Class III. It has a 1-inch NPT conduit opening, and is provided with a mounting bracket.
The 907 XP Hall-effect sensor is the standard EXPLOSION PROOF sensor for most Electro-Sensors systems.
Features:
- Non-contact sensing
- NPN open collector output
- Signal transmits up to 1500 feet
- Large gap distance between sensor and target
- Simple to install and set up
- Optional EZ100 bracket assembly available
- 10ft cable standard - additional lengths available
- High temperature option available - consult factory
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- World's Fast Sampling Speed of 50 kHz
- Industry Best Accuracy of ±0.03% (LK-G10/15)
- Class Best Resolution of 0.0004 Mil (0.01 µm)
- Multifunctional Controller
- Simple, Menu Driven Software
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CD5 series is the highly balanced laser displacement sensor with high resolution, high linearity, high stability and high operationality.
Range: 30mm, 85mm, 350mm, 500mm, 2000mm for diffuse type
25mm for specular type
Linearity: +/-0.05%F.S. for 85mm type, +/-0.08%F.S. for 25/30/350/500mm type, +/-0.1%F.S. for 2000mm type
Resolution: 0.02um(25mm type) ~ 10um(500mm type) ~ 30um(2000mm type)
Up to 3 sensor heads can be connected to one controller.
Using 3 result from 3 sensor heads, you can calculate variously, for example: levelness, contortion, warpage, area, capacity, thickness, etc.
Sensor head can measure by it self and controled through RS422 without controller.
16 Banks are available. 5 outputs are available with individual threshold.
Easy setup by backlit ten-key.
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We offer modification to our standard range of displacement transducers for high temperature capability, as well as versions specially designed for both high temperature and high radiation environments including non-contact, proximity types.
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Significant scientific and engineering enhancements in advanced materials, Pre-Process and In-Process production methods and in-site testing methods are driving the demand for displacement sensors that can handle extremely high temperatures up to 1832°F (1000°C). Contemporary producers of aircraft engine rotational alignment, plate glass, materials testing extensometry, continuous flow steel, now use standardized high temperature Capacitec sensor solutions for in-process applications to control the quality of their production on a real time basis. Qualification testing of disc brakes, jet engine dynamics and high speed shaft rotations also rely on Capacitec sensors. Advanced materials for automobiles, structural components, and aircraft are also tested for strength and durability with the use of Capacitec's line of extensometers and clip gauges.
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IDEACOD, the leader of the rotary sensor, offers also solutions with linear sensor. The sensor with cable does not need precise linear guidance. It is especially adapted to severe industrial environment : iron and steel industry, metallurgy, industry of wood (sawmills, joineries), etc... Principle of operation : a cable of measurement out of stainless steel, of great flexibility coated with a film polyamide, is rolled up and been held on a drum of precision. With the cable of measurement is associate interdependent of the drum, an optical encoder, of technology incremental, absolute, analogical or potentiometric..
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Very compact sensor for industrial applications
Sensor head PMIS3.
Technical Advantages:
Non-contact, no wear
High velocity
Robust shielded metal enclosure
Protection class IP67
Incremental encoder output A/B/Z
Signal processing as usual with encoders
Reference pulse and end position signal
Indicator for velocity/position errors
A POSIMAG measuring system consists of the
sensor head PMIS3 and the magnetic scale PMIB3
with the same magnetic period.
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Incremental encoders do not generate a unique signal and is zeroed after power-down. They rely on crossing an index or home signal (sometimes multiple index marks are used) prior achieving absolute position.
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Linear encoders from NUMERIK JENA set standards with respect to accuracy, resolution and permissible measuring velocity.
DOUBLEFLEX scale tapes with thermally defined behavior ensure exact measurement within a large temperature range.
Linear encoders are categorized as exposed or sealed, depending on the application conditions.
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Renishaw offers a wide range of precision position feedback systems for a diverse range of linear and rotary motion applications.
From our range of robust magnetic encoders for incremental and absolute requirements, through to high speed optical linear encoders and precision optical angle encoders, we can meet your motion system requirements, including ultra-high vacuum (UHV) applications. All systems have an established reputation for ease of set-up and installation, plus minimal cost of ownership.
If you require the ultimate accuracy in linear position feedback then look at our range of interferometer-based laser encoders.
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Series EMIX
- Resolution = 0.01 mm (at 4 edges triggering)
- Repeating accuracy +/- 0.01 mm
- Speed proportional output of square waves
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Merit ME110
Battery powered digital readout with the following fixing ways :
1) panel mountable by relevant brackets
2) surface mountable by metallic supports
Flexible cable max lenght 2 meters.
Magnetic reader head with small dimension.
Fixing by M3 or M4 screws.
Wide aligning tolerances.
To be used with magnetic tape Givi MP200.
Resolution (programmable): 1 - 0,1 - 0,05 - 0,01 mm
0,01 - 0,001 - 1/16 - 1/32 - 1/64 inch
1° - 0,1° - 0,01° - 0,001° angolare
Accuracy: ± 30 µm
Repeatibility: ± 1/2 digit
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- 7-digit LCD-display
- Sign and special characters
- Battery-status display
- Easy mounting
- Up to 3 external magentic sensors (switchable)
- Millimeter or inch operation possible
- Inch mode with fraction display
- Switch-over between incremental and absolute measuring
- Adjustable reference value
- Adjustable multiplication factor
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Designed specifically for use in hydraulic and pneumatic actuator applications, where the sensor is fitted inside the pressurised environment.
Available in a choice of two mounting styles (Internal or External), these sensors can be supplied in lengths to suit actuator strokes up to 1100mm.
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DIN Rail mounted electronics,
Aluminum encased electronics,
Edge-connector PCB electronics for OEM use.
Ranges: 0.5mm to 15mm
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The electromagnetic sensors induSENSOR are based on the well-proven inductive principle. They are employed both in single and large-scale applications.
The measurement ranges of the displacement transducers extend from a few tenths of a millimeter to over 600 mm. The actual measurement acquisition takes place without contact and wear free.
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* DC/DC Displacement Transducers :
inductive, for the measuring of displacements or magnitudes that can be converted into displacement, integral measuring amplifier, robust, vibration and shockproof, special versions by request.
* LVDT Transducer with IN-LINE Amplifier :
small sensor with a diameter of only 8 mm for installation into restricted structures, vibration-proof and wear resistant, internal IN-LINE amplifier, for direct measuring of displacement and indirect measuring of convertable mechanical values.
* DC/DC Displacement Transducer :
Detailed English product information will be available shortly.
* DC/DC Displacement Transducer :
Detailed English product information will be available shortly.
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POSIC introduces the world’s smallest incremental inductive encoder kit ID1101 for linear and rotary applications. It measures only 8.7 x 6.3 mm with a thickness of 0.8 mm and has an A quad B output stage that runs up to a frequency of 200 kHz. The linear/rotary target is a 0.8 mm thick strip/disc that comes in different lengths/diameters.
The linear resolution ranges from 1 um at a speed of 0.5 m/s to 150 um at 50 m/s.
The rotational resolution depends on the disc diameter and is for example 12 bits (1024 A-B pulses per revolution) with a 30 mm diameter disc.
Typical applications are in the motion-control domain with magnetic actuators like brushed and brushless motors, voice coil actuators, linear drives and more. Markets served include industrial, automotive, robotics, medical, instrumentation, laboratory automation, office equipment.
Evaluation kits with linear or rotational targets are available from stock.
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INTRA transfers inductive signals from one or multiple Bircher SafeTecâ sensing edges to an electronic unit for evaluation. The redundant evaluation meets the requirements of the German standard ZH1/494 for doors and gates.
The main advantage of INTRA is the capability to monitor sensing edges without mechanical or direct electrical connections between the stationary and moving part of a sliding gate. Compared to conventional sensing edge signal transmission via trailing cable, the INTRA system is virtually maintenance free.
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The ODS Red-line program is a series of sensors based on optical triangulation, with different measuring ranges and resolutions. All made to be used environments, ranging from the very hot and harsh applications in the heavy industry to delicate applications in the laboratory. Some models are particularly appropriate for cold or hot rolling of steel and metals. The ODS Red-line sensors are used either for larger measuring ranges or for applications where a long stand-of distance is needed along with high resolution.
Nine different measuring ranges are available, the smallest cover 450 to 550 mm and the largest 2000 to 4000 mm. ODS Red-line sensors are available with measuring frequencies of 1 kHz, 2 kHz and 5 kHz. Higher measuring frequencies deliver shorter distance between the individual measuring points on a moving target, and also increase the possibility of averaging sufficiently to obtain the required high resolution.
All ODS Red-line sensors are supplied with a Select functionality, allowing the sensor to be programmed to calculate a user defined running average. Free software provides easy setting of the Select parameters.
For further information please study the PDF/datasheet on our website www.sensor.dk
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ATLAS, POLARIS and ANTARIS laser displacement sensors work by the triangulation principle of measurement.
Single sensors measure displacement, depending on combination and placement you may measure thickness, width, height, length, straightness, flatness, profile or diameter.
Based on a Digital Signal Processor (DSP) the intelligent sensor controls the exposure of the CMOS and the output power of the laser source.
Due to this, LAP laser sensors measure extremely precise and fast, even if surface characteristics like color or reflectivity are changing.
Parameter like measurement speed or filters are handled directly in the sensor's DSP.
Digital workflow from CMOS to evaluation software eliminates the error sources of analog measurement. Still, ATLAS, POLARIS and ANTARIS sensors offer an analog output 4-20 mA.
ATLAS sensors can be connected by RS485, e.g. to further LAP sensors, to I/O modules, encoders ... .
Optional you may use interfaces to Ethernet UDP, Profibus DP or RS232.
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Linear encoders, Linear displacement sensors
