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  • Offer Profile
  • Over the course of 30 years, DIS Sensors has built up a reputation in the field of high quality sensor technology. We develop, produce and sell sensors for various applications from our headquarters in Soest, the Netherlands. We value innovation and know-how above all else. The result: high-quality products and solutions from DIS Sensors to serve the global market.

    We offer a wide range of sensors for measuring inclination and acceleration as well as rotary encoders. DIS Sensors has an excellent reputation in the field of customised solutions and we are proud to be your partner in innovation. Because we work with a network of carefully selected suppliers, we can also produce wide ranges at highly competitive prices.

Product Portfolio
  • SENSORS

      • Inclination sensors (QG series)

      • The QG series of inclination sensors measures angles in 1 or 2 axes. These products are based on robust MEMS technology, in which capacitance differences can be converted into an analogue voltage within a micro-mechanical sensor chip. This analogue voltage is proportional to the angle to which the sensor is exposed. The modular design makes it easy to adapt the sensors to specific requirements.

        How does an inclinometer work?

        An inclination sensor is used in situations where accurate positioning or constant monitoring of the angle in relation to gravitational pull is essential. An inclination sensor measures the angle with respect to a horizontal position, whereby an imaginary line from the centre of the earth serves as a reference.

        Easy to mount

        An inclination sensor has a very wide range of applications since it can be mounted anywhere and offers flexibility in mechanical design. The sensor output has two components: a static (slope) component and a dynamic (acceleration) component. The sensor output is always a combination of these two components. The inclination sensors from DIS have a standard bandwidth of 10 Hz, although it is possible to reduce this bandwidth further at the client’s request.

        Specifications

        • single axis measurement range: ±10°; ±30°; ±90°; 0 - 360°
        • double axis measurement range: ±10°; ±30°; ±90°
        • energy supply: 5 V dc or 10 - 30 V dc
        • analogue output: 0.5 - 4.5 V or 4 - 20 mA
        • digital output: CANopen (Safety); J1939
        • level of protection: IP67, IP68 or IP69K
        • precision: depending on model and range: as high as ±0.04°
        • programmable: filtering, measuring range
        • zeroing possibility: depends on model functional safety: SIL2/PLd (specific models)
        • housing: (reinforced) plastic or stainless steel

        Functions

        • levelling,
        • tilt protection,
        • roll and pitch measurement,
        • angle measurement

        Applications

        • concrete pumps,
        • cranes,
        • elevated work platforms,
        • solar panels,
        • air suspension systems,
        • agricultural machinery

        Application example

        Boom lifts (or ‘cherry pickers’) come in all shapes and sizes, but they have one thing in common: every type must
        be equipped with an inclinometer.
        First, to verify that the machine is level before raising the boom; then to continuously check for potential instability during operations.
        DIS Sensors offers a wide range of inclinometers for this application, including many with SIL2/PLd certificate.

      • Acceleration sensors (QG series)

      • The QG series of acceleration sensors measure acceleration in 1, 2 or 3 axes. These products are based on robust MEMS technology, in which capacitance differences can be converted into an analogue voltage within a micro-mechanical sensor chip. This analogue voltage is proportional to the acceleration to which the sensor is exposed.

        Acceleration Sensors Modular Design

        The modular design makes it easy to adapt the sensors to specific requirements. The housing is available in metal (aluminium and stainless steel), as well as in plastic. DIS acceleration sensors have a higher bandwidth than inclination sensors so they can measure faster movements with very high accuracy.

        Specifications

        • measurement range: ±0.5 to ±18 g (1 g = 9.81 m/s²)
        • bandwidth: 0 - 1,600 Hz
        • energy supply: 5 V dc or 10 - 30 V dc
        • analogue output: 0.5 - 4.5 V or 4 - 20 mA
        • digital output: CANopen (Safety)
        • level of protection: IP67, IP68 or IP69K
        • precision: depending on model and range: as high as ±0.04 g
        • zeroing possibility: depends on model
        • functional safety: SIL2/PLd (specific models)
        • housing: (reinforced) plastic or stainless steel

        Functions acceleration sensors

        Acceleration sensors are used for various applications, such as:

        • Measurement of acceleration and vibration
        • Active vibration damping
        • Vibration measurements
        • Transport monitoring
        • Compensation of vibrations at load cells
        • Preventive maintenance
        • Maximum vibration monitoring of wind turbines

        Applications acceleration sensors

        The accelerations sensors with robust MEMS technology are perfect to use for:

        • Agricultural machinery
        • Wind mills
        • Containers

        Application example

        Modern wind turbines are required by law to use accelerometers to monitor swaying of the mast due to wind and (offshore) wave action. When these sensors measure values that exceed a certain threshold, a signal is given to ‘feather’ the blades, putting the wind turbine into a safe state. DIS Sensors provides added value to turbine producers in the area of customer-specific filtering and safety circuit interfacing.

      • Safety sensors

      • The first concern of the designer or OEM must be to ensure the safety of the user of their machine. This is achieved initially through intrinsically safe design, followed by the use of safety components and control systems, and finally by establishing the proper procedures for commissioning, use, maintenance and ultimately, disposal of the machine.

        Safety components

        Safety components provide functionalities such as ensuring that the machine stops when a body part gets caught in it, or that a robot adopts a safe speed when a person enters the hazardous zone, or any number of other ‘if…then’ situations. Safety components can therefore be seen as products that respond to an incident in a predefined way.

        For every new machine (including existing machines ‘substantially modified’ by maintenance), a risk assessment must be performed to determine where and what kinds of safety components are required. Every specific hazardous situation is examined: what are the consequences, how often and for how long can this situation occur, and what are the options to prevent the danger? Those hazards that have the severest consequences, highest probability of occurring and fewest options for prevention, will require the most reliable safety functionality.

        Reliability of the safety component or machine

        The reliability of a single component or assembly of components (i.e. the machine) is designated as either its Safety Integrity Level (SIL) or Performance Level (PL). In both cases, the corresponding SIL or PL value is determined based on the calculated ‘statistical probability of failure’.

    • SWITCHES

          • Tilt switches (QG series)

          • A tilt switch is in fact an inclinometer (a sensor) with a switching output, and with gravity serving as a reference. The tilt switches from DIS Sensors are based on MEMS technology and intelligent
            microcontroller algorithms. As a result, single or twin axis switches can be implemented with any desired switching angle. The standard enclosure for these sensors is a QG40 housing. The
            QG65 variant offers the possibility to incorporate tilt switches with even higher precision and temperature stability

            Specifications

            • single axis measurement range: up to 360°
            • double axis measurement range: ±1° to ±80°
            • energy supply: 5 V dc or 10 - 30 V dc
            • output: single or dual NPN/PNP
            • level of protection: IP67, IP68 or IP69K
            • precision: depending on model and range: as high as ±0.2°
            • programmable: switching angle, on/off delays, filtering
            • housing: (reinforced) plastic

            Functions

            • replacement for mercury switches,
            • tilt and tip over protection

            Applications

            • elevated work platforms,
            • agricultural machinery,
            • forklift trucks,
            • stackers

            Application example

            The tilt of mobile machinery is usually monitored using inclinometers. An inclinometer designed as a tilt switch can trigger warning and/or alarm signals when one or more preprogrammed angles is exceeded for a
            certain period of time.
            This is also a simple but effective way to prevent abuse of the machines in a rental fleet.

      • ENCODERS

            • Rotary encoders (QR series)

            • Our rotary encoders (absolute & incremental) enable contactless measurement of an angular displacement from 0° to 360° without a mechanical stop. We offer three different types: QR30(N), QR40 and QR40EMN. In the QR30(N) and QR40EMN range, the sensor is mounted on the fixed assembly, and the magnet is separately mounted on the rotating shaft.

              The maximum distance up to 10 mm (depending on model and magnet) between the magnet and the sensor provides sufficient clearance for mechanical tolerances under extreme conditions. Various outputs are available with a 12-bit resolution and a high repeatability for a wide range of applications.

              The QR40 series is supplied complete with output shaft. The bearing is equipped with a fibreglass plain bearing. The QR40 has a zero-input, enabling the device to be zero-calibrated after installation, and making the sensor mounting procedure non-critical. The QR40EMN is available as full-redundant model, what makes it the perfect solution for designs where safety is required.

              Specifications

              Absolute

              • measurement range: 0 - 360° (subranges possible)
              • energy supply: 5 V dc or 10 - 30 V dc
              • output: 0 - 5 V or 4 - 20 mA (both single & redundant)
              • level of protection: IP67 (QR40: IP66)
              • resolution: 0.09°
              • housing: plastic

              Incremental

              • measurement range: 0 - 360°
              • energy supply: 5 V dc or 10 - 30 V dc
              • output: A/B pulse (32 - 1,024 ppr) push/pull
              • level of protection: IP67
              • resolution: 0.09°
              • housing: plastic

              Functions

              • replacing potentiometers,
              • measurement of angle,
              • speed and direction

              Applications

              • agricultural machinery,
              • excavators,
              • mobile and fixed waste compacters,
              • valve control, robotics
        • APPLICATIONS

            • Material handling

            • An inclination sensor measures the angle with respect to a horizontal position, with an imaginary line from the centre of the earth serving as a reference. It can be mounted anywhere and offers great flexibility in mechanical design. This combination makes DIS Sensors inclinometers an excellent choice for tilt monitoring of, for example, fork/ scissor lifts and aerial work platforms.

            • Mobile machines

            • Concrete pumps contain long boom extensions which often have to reach over long distances or (high) obstacles. The primary concern of working safely with concrete pumps is to situate the truck correctly. The inclination sensors of DIS Sensors can be used to continuously monitor the exact position of the boom to guarantee stability.

            • Energy sector

            • DIS Sensors acceleration sensors can measure fast movements which makes them perfect to monitor maximum vibrations of wind turbines and to prevent damage. For safety applications DIS can provide redundant versions.

            • Medical appliances

            • DIS Sensors inclination sensors perfectly meet the requirements of the medical industry to measure accurately the angular position of, for example, MRI or CT scanners and mobile operation chairs.

            • Oil and Gas

            • Blowout preventer (BOP) systems play an important role by monitoring the pressure and flow of oil and gas in offshore drilling which make them essential within this application. For accurate levelling of these BOP systems we recommend DIS Sensors inclinometers.

            • Elevators

            • To make sure elevator doors can be controlled throughout the complete open-closed cycle you can use the absolute and incremental encoders of DIS Sensors. With an absolute rotary encoder it becomes possible to control the door speed to be slowed in time and also detect if there are obstructions along the cycle. Absolute encoders give an analog output which is linear with the angle of rotation, up to 360°. After switching on the power the sensor knows directly in which position it is located.