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Glass scale gratings are available in a variety of configurations. They are intended for applications where the user provides the scanning unit and the electronics to create a customized measuring or detection system. The quality glass gratings are available as linear scales up to 3400 mm length, as disco shaped scales with diameters up to 400 mm, or in special geometric configurations.
Material
Substrate material selected float glass
Thickness of substrate 1; 1,5; 2,0; 2,5; 3; 4; 5; 6 mm.
Tolerance of glass thickness ±0,1 mm
Length/ width diameter tolerance ±0,1 mm
Planarity 10 µm / 100 mm
Coefficient of thermal exponation 8x10-6/K
Coating vacuum deposited chrome
- Transmission < 1% at 400-900 nm
- Reflection ≤ 60% at 400-900 nm
Pattern:
- sputtered chrome on glass;
- max. line tolerance ±5%;
- graduation accuracy ±1; ±2; ±3 µm (L?1 m); ± 2; ±3 µm (L?3,4 m);
- parallelism graduation to glass edge <0,1 mm per 1m;
- shape of graduation line - rectangular;
- max. possible length of graduation line 15 mm;
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senc 50 precision glass scales
A high performance SENC 50 is a compact, flexible and versatile precision glass scale designed for applications involving limited or confined mounting spaces. A SENC 50 also withstands elements of contamination found in even the harshest machine shop environment.
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A high performance ACU-RITE SENC 50 is a compact, flexible and versatile precision glass scale designed for applications involving limited or confined mounting spaces. A SENC 50 also withstands elements of contamination found in even the harshest machine shop environment. Every ACU-RITE precision glass scale incorporates ACU-RITE's long-standing tradition of quality, reliability, durability and dependability at an affordable price. The SENC 50 precision glass scale is available in travel lengths from 1" - 20", in resolutions of 0.5µm, 1µm, 5µm and with an accuracy of ±3µm/meter.
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The scale gratings are made of vacuum deposited chrome on a glass substrate. This process guarantees high accuracy and renders the scales extremely resistant to chemical and mechanical abrasion. In addition to the main incremental track a second track with one or more reference marks can be applied. These are used to establish reference positions along the main track. Absolute track with special grating patterns be added also. Glass substrates are available in a variety of lengths, widths, diameters and thicknesses.
Precizika Metrology has generated technological processes and equipment of scales production to perform all production stages by giving preference to the rationality of production.
Special attention is givin to the quality of products that is guaranteed by the technological process and operating quality control and management system.
Upon the client's request, and together with each product, we may provide an error calibration protocol. This has enabled us to carry out orders in favorable conditions to the clients in a flexible way.
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The Model 9717 is a high-resolution incremental encoder
that offers direct measurement of linear position or speed
without contact between the reading head and the glass scale.
When used with the optional HR2B or HR2C interpolator,
its optical resolution can be electronically increased and the output provided as quadrature square waves plus index from RS422 differential line drivers.
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Al-Tek Instruments manufactures hundreds of different designs of speed sensors.
Designed to meet severe industrial, automotive and aerospace environments, Al-Tek speed sensors, will provide reliable, around-the-clock operation for many years under adverse conditions. Our design engineers have paid particular attention to trouble areas such as vibration, shock, extreme temperatures, wet, oily and corrosive atmospheres. Many of our speed sensors are specifically designed for high temperature, high or low speeds, various targets or for precise accuracy and timing applications. Al-Tek uses primarily the two technologies of variable reluctance, and Hall effect to convert motion into an electronic signal. By selecting the best technology for a specific application we can assure years of reliable performance.
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No-Contact Sensors – no maintenance, no wear, easy in use, economical
Select the function principle to fit the application:
· The Differential Hall-Effect Principle for hard ambiance engineering conditions, detecting very low up to high speed, with sharp spatial resolution, hermetically sealed in stainless steel enclosure, rejecting noise, accepting high pressure and wide temperature range. Version with direction sensing available.
· The Opto-Electronic Principle, versatile to detect rotation of any material, sensing distance with Laser up to
2 meters.
· The low cost Eddy Current Principle for all metallic parts from zero up to medium speed.
· The Magnetic Pick up Principle for steel parts up to 200 °C.
Wheel Transmitters to run on a roll or web
Speed range 0 – 3000 m/min.
Incremental Encoders to connect a rotating shaft by coupling or hollow shaft version
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Hall-effect sensors for speed, rotation and direction control of mechanical parts, such as wheels, gears, camshafts and drive shafts
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JAQUET speed sensors are robust, durable and reliable and designed to endure the most demanding ambient conditions. JAQUET sensors can be used in a multitude of applications e.g. in diesel and gas engines, turbo-chargers, turbines, pumps and compressors - just to name a few. Please also take a look at Market Specific Solutions (http://www.jaquet.com/Market-specific-solutions.70.0.html) - and you'll learn more about how and what JAQUET products are used in your industry and specific application.
Thanks to JAQUET's wide selection of standard sensors and custom design and manufacturing capabilities, we will always be able to supply a sensor / speed sensing solution that meets your specific technical requirements and/or is designed specifically for your application - this ensures secure and accurate speed measurement information for optimum control efficiency.
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GREEN LINE - Industrial speed sensors
The GreenLine family is the newest line of industrial speed sensors and control modules from JAQUET TECHNOLOGY GROUP.
These sensors and tachometers provide solutions for speed sensing and control applications both for end users and small OEM’s. Our offering of 50 plus sensors are available with VR or Hall technologies with cable or connector interfaces. Sizes range from 3/8-24 and M10X1 to 3/4-16 and M16X1.5. Sensor capability ranges from zero speed to high frequency detection and all units have sealed sensing areas to prevent liquid intrusion. Also available are direction sensing units and hazardous location versions for both North America (NEC, CEC) and Europe (ATEX) (Q4 2007).
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Speed sensors are designed for installation in drives as an alternative to the conventional encoders. They are contactless and are equipped with a magnetic scanning system which, in conjunction with a toothed wheel as measuring scale permits the measurement of rotary motion. This solution is exceptionally space saving.
The speed sensors are designed for highly reliable speed and direction measurements starting from 0 Hz and - due their metallic housings - are suitable for even the harshest working conditions. In addition, they tolerate large air gaps between target wheel and sensor element. The sensor elements, the magnet and the integrated electronic system are incorporated in state-of-the-art micro system technology and are fully encapsulated. The design together with subsequent circuitry ensures an electrically and mechanically robust product.
Advantages:
* The miniaturized sensors are dew-point proof, do not wear and are insensitive to dirt, shock and vibration.
* The toothed wheels can be adapted to any machine geometry (interior and exterior diameter, impulse number).
* MiniCoders require no maintenance and thus have a low cost of ownership.
* This extremely flexible system offers you not only long term reliability but also solutions to gain a competitive edge.
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These sensors use various magnetic proximity measuring principles to monitor the speeds of machine components in a range between 0 and 30,000 rpm.
The application itself determines the measuring principle used. Rheintacho offers a wide range of standard products for the most varied applications, with suitable measuring systems and electronics, as well as appropriate housings, designs and connections. As well as this, we also provide custom solutions, quickly and inexpensively.
Rheintacho specializes in developing and manufacturing sensors for the harshest environments. The sensors' resistance to high pressure, temperature changes, electromagnetic interference, aggressive media, water and steam jets is crucial for their operability and service life.
Rotational speed sensor applications:
Ships' engines
Communal power stations
Wind power plants
Emergency power units
Hydraulic drives (hydro motors)
Electric drives (Material Handling)
Road-building machinery
Cranes
Agricultural machinery
Printing and paper machines
Special machinery
Standard sensor features at a glance:
Frequency range from true 0 Hz to 30,000 Hz
Pressure resistance up to 500 bar as standard
Extremely leakproof due to patented individual wire sealing
Resistant to (hydraulic) oil, salt, alkaline solutions and acid
Wide operating temperature range (-40°C to +165°C)
Highly resistant to changes in temperature
Highly resistant to electromagnetic interference (EMC/ESD)
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Rotational Speed Sensor Type FUA9192
Optical probe for measurements of rotational speed, designed as retroreflective photoelectric sensor for photoelectric detection of rotational speeds or events.
For evaluation of the pulses, the tachometer probe is equipped with a specific frequency meter module that calculates the number of revolutions per minute from the time period between two pulses. A stable read-out is achieved by averaging over a minimum of 500 ms.
Easy application:
A reflective adhesive tape is attached to the moving part and the probe is aligned with it. For function control purposes a yellow signal lamp at the rear side of the probe will be on when the reflective adhesive tape is recognised.
To increase the operation reliability the sensitivity can be adjusted through a potentiometer.
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Sensing engine speed and providing an electrical, hydraulic, or pneumatic signal when the engine reaches a specific set point.
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Infineon is today's world leading semiconductor supplier for magnetic speed sensors for automotive applications as ABS, Transmission and Engine Management.
Find in the following our selection of rotational speed sensors for these applications:
Different types of sensors are available in order to provide a best fit for your individual application, for 2 or 3-wire interfaces, with or without direction detection, with or without vibration suppression, including application tailored sensors like ones with integrated capacitors (-C types) and first edge detection (-1 types) or for special ESD requirements.
Due to Infineon ’ s high quality standards as experienced automotive semiconductor supplier, after several hundred million units sold, our speed sensors have proven to be the perfect match for wheel speed sensing in all aspects of functionality, robustness and flexibility.
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Velocity sensors MSZ214 and MSZ218 are electro-magnetic transducers with self excitation.
MSZ214 has a diameter of 14 mm (M14 thread) and MSZ218 a diameter of 18 mm (M18 thread).
- Contactless sensing of mechanical motion such as the rotational speed of drives or shafts.
- Pulses are generated by the movement of ferrous gear teeth, for
example, as they pass the sensor head.
- The electronic control circuitry and sensor head are designed as an
integral unit.
- The electronic control circuitry is reverse polarity protected.
- A digital output is available corresponding to the frequency of
movement past the sensor.
- Available either with 2 m permanent cable or with 3 pole connector
Supply voltage:
DC 5...36 V
Power consumption:
5 mA
Measuring range:
up to 20 kHz
Output:
open-collector-NPN
Umax = 40 V
Imax = 40 mA
Connection:
2 m Cable
Connector
Housing material:
stainless steel 1.4305/AISI 303
Degree of protection:
IP67 version with cable
IP65 version with connector
Mounting method:
outer thread M 14x1
outer thread M 18x1
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Sensors Three types are offered: the PA optical absolute sensor series, the PP incremental sensor series, and the RA resolvable, batteryless absolute sensor series.
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Linear encoders
Sealed linear encoders are protected from dust, chips and splash fluids and are ideal for operation on machine tools.
Exposed linear encoders operate with no mechanical contact between the scanning head and the scale or scale tape. Typical areas of application for these encoders include measuring machines, comparators and other precision devices in linear metrology, as well as production and measuring equipment, for example in the semiconductor industry.
With incremental linear encoders,the current position is determined by starting at a datum and counting measuring steps, or by subdividing and counting signal periods. Incremental encoders from HEIDENHAIN feature reference marks, which must be scanned after switch-on to reestablish the datum. This process is especially simple and fast with distance-coded reference marks.
Absolute linear encoders require no previous traverse to provide the current position value. The encoder transmits the absolute value through the EnDat interface or another serial interface.
Length gauges
Length gauges from HEIDENHAIN feature integral guideways for the plunger. They are used to monitor measuring equipment, in industrial metrology, and also as position encoders.
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Linear Enclosed Encoder
Key Features:
· Sealed system
· Small profile
· Self guided read head
· High accuracy
· Built-in signal interpolation
· Wide mounting tolerances
· Measurement up to 3 m
The scale and scanning unit of sealed linear encoders are protected against harsh environments by an aluminum housing with flexible sealing lips. The sealed linear scales come in several size configurations as well as lengths. Accuracy grades range from ±3µm/m to ±10 µm/m . Reference marks come in standard or distance-coded versions.
These linear encoders are interchangeable with several popular competitive brands.
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The Microtrak II high speed stand-alone laser head utilizes the latest CMOS / CCD technologies and is ideal for industrial/process automation and quality control applications. With the new Microtrak Stand-alone Laser Heads, a
controller is no longer required to obtain fast, accurate and
reliable measurements from a laser triangulation sensor.
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We offer ranges of submersible displacement transducers for displacement measurement in fresh water or non-corrosive liquids, including options with an amplifier built into the housing. For sea-water applications, up to 2.3km depth, we have a range with stainless steel construction.
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Honeywell speed sensors using Variable Reluctance sensing technology are simple, rugged devices that do not require an external voltage source for operation. The output signal of a VRS sensor is an ac voltage that varies in amplitude and wave frequency as the speed of the monitored device changes, and is usually expressed in peak to peak voltage (Vp-p). Honeywell offers VRS sensors for general purpose, high output, power output, high resolution, high temperature and hazardous location applications, as well as low-cost molded versions.
Best Used For:
Engine RPM (revolutions per minute) measurement on aircraft, automobiles, boats, buses, trucks and rail vehicles; motor RPM measurement on drills, grinders, lathes and automatic screw machines; process speed measurement on food, textile, paper, woodworking, printing, tobacco and pharmaceutical industry machinery; wheel-slip measurement on autos and locomotives; gear speed measurement.
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Variable-reluctance sensors are preferred for industrial and automotive environments, because they sustain mechanical vibration and higher temperature operation. In most applications, they sense a steel target that is part of a rotating assembly. Because the unprocessed signal amplitude is proportional to target speed, a sensor whose signal-processing circuitry is designed for high speed ceases to function at some lower rate of rotation.
Variable Reluctance sensors are often referred to a 'passive' magnetic sensor because it does not need to be powered. Variable Reluctance sensors are 'self generating'
The variable reluctance wheel speed sensor is basically a permanent magnet with wire wrapped around it. It is usually a simple circuit of only two wires where in most cases polarity is not important. The physics behind the operation include magnetic induction.
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The transducers of position DR ITALY are of the used sensors of precision in the limiters of moment in the fields of the self-propelleds crane and the aerial platforms.
They are constituted from a mechanical part of precision that serves to evincere the measure that a telescopic arm assumes (main arm, stabilizers crosspieces, ec...) and from a joint electrical worker to special contacts who transfers the information from the head of the arm (finecorsa hook, anemometer, television camera, etc...). Inner Al they can be endowed of an electronic sensor that measure the angle that assumes the arm.
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| ... products without technical information |
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Linear encoders, Linear displacement sensors
