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Inclinometer NBA

Inclinometer NBA
17Pages

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Inclination sensor on MEMS technology Interfaces: CANopen and Analogue Models NBN and NBA Number of measuring axes: 1 or 2 High vibration and shock resistance see datasheet NBN 12054/NBN14705 Output of acceleration ** (Special version NVA65...Bxx) orrection of tilt output signal due to C implemented gyroscope sensor (only at NBN - version 'G') utput of a velocity signal °/s O Registration of inclination in the gravitation field using MEMS sensors (Micro-Electro-Mechanical-System) with subsequent digitisation and linearisation via a controller. Data output is carried out via the CANopen interface or as an analogue signal. The inclination sensor has a stable aluminium housing (optionally stainless steel). Slots are available for mechanical alignment (up to approx. ± 7.5°). In the case of CANopen, one connector or one male/female connector combination can be selected optionally for connection purposes. Casting measures in the housing lead to the achievement of protection class IP 69K, e.g. for use under water. MEMS sensors are integrated circuits manufactured using silicon bulk micromechanical technology. These micromechanical structures are used to form dual capacities. If these structures are deflected in the case of acceleration, e.g. gravitational acceleration (g), this results in capacity changes, which are registered and further processed using measuring technology. Due to the differential capacity dependency described here, the output voltage follows the function U ∝ g * sin α. In this case, the angle α is the inclination angle of the sensor measured against the g vector. These sensors measure precisely, have a long service life and are very robust. The measuring axes operate independently of each other. The optional available gyroscope sensor is based on MEMS technology as well. * : On request at NBN with CANopen interface. See special datasheet NBN15268. ** : The special version NVA...Bxx, based on model NBN provides accelerations in 3 axes - not converted into an inclina- .tion. Frequency range 0 to 60 Hz, 3 axes. xx means special versions. TWK-ELEKTRONIK GmbH Bismarckstraße 108

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Inclinometers NBN and NBA Options - general description Only possible with CANopen: NBN Sensor with gyroscope correction, version 'G' (NBN with CANopen interface only) TWK has developed a new generation of inclinometers. They measure more precisely and faster than the standard inclinometers with averaging filter, and are insensitive to interfering acceleration and lateral inclination excursion. Due to the addition of a MEMS yaw rate sensor (gyroscope), it is possible to transmit a stable measurement value to the control system even during shock and vibration disturbances. The reaction time...

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Electrical data ■ Sensor system: ■ No. measuring axes: ■ Measuring range: ■ Absolute Accuracy and temperature drift ■ Repeatability: ■ Zero error: ■ Noise: ■ Signal path: ■ EMC standards: MEMS acceleration sensor 1 or 2 ± 5° to ± 90° and 360° (360° on request at NBN66 with CANopen interface) See below "Deliverable accuracies" ± 0.05° ± 0.5° ± 0.05° Parameterisable Interference immunity: EN 61000-6-2 Interference emission: EN 61000-6-4 Environmental data ■ Temperature range: ■ Storage temp. range: ■ Resilience □ To shock: □ To vibration: ■ Protection grade: ■ Weight: -40 ... +85 °C -20 ......

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SUPREME SENSORING At inclinometer versions without cross tilt correction the measured axis is no longer detected in case of an inclination in a second axis (cross-axis inclination) is greater than 30°. Meaning the sensor will go in an over flow stage (+180°). This feature is required since measuring accuracy decreases with increasing cross-axis inclination. Behaviour of the due to averaging: Dynamic, arithmetic averaging of the measured values is implemented in the inclinometer. This involves linear averaging over 1000 values, whereby a new value is recorded every millisecond. This results...

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SUPREME SENSORING CANopen data Data format CANopen Data Byte 0 Model NBN: Inclination values. Model NVA...Bxx (based on NBN): Acceleration values Design of PDO when a velocity signal is available - version 'D' -see datasheet 15268. Principle circuit diagram NBN (without gyroscope) Output level according to ISO / DIS 11898 Bus activation according to ISO / DIS 11898 Date: 13.09.2019 Page 5 of17 Document no. NBX 11918 VE

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SUPREME SENSORING CANopen data Characteristic curve ■ Example: ± 70° = 2 x 7000 increments with resolution 0.01°. ■ Data format: Signed 16-bit. Programming parameters Parameter Documentation, EDS file, etc. ■ The following documents plus the EDS file, a bitmap and example programmes can be found in the Internet under www.twk.de in the support / documentation section, model NBN (letter "N") □ Data sheet No. NBX 11918 □ Specification No. NBN 12527 ■ The following are available on request: □ EDS file □ Bit map image file □ Electrical connection assignment, if required ■ Supply source for the...

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SUPREME SENSORING Order code format NBN NBN 66 - A x / y / z Output interface: N CANopen Electrical connections: 1 Single connection 2 Double connection Electrical connections: S Device connector M12 K Cable 1 m (not at versions 'G' and 'D') other length possible C3 CANopen according to CiA, DS 301 Version 4.1, DS 410 Version 1.2 G G = with gyroscope for suppressing disturbance vibrations (only fill in if requested) D D = with gyroscope for measuring of angular speed (only fill in if requested) 2) Measuring range 3): z axis Please assign the measuring angles which you require to the "x, y,...

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Inclinometers NBA Technical data, analogue Function The contactless MEMS sensor system is extended using a 12-bit D/A converter so that the measuring variable is available as an analogue signal from 0 (4) to 20 mA, 0 to 10 VDC or ± 10 VDC. The customer can adjust the signal path (CW or CCW) and the measuring range from ± 5° to ± 90° in 5° steps (i.e. 2,5° on each side. Example: from ± 5° is the next step ± 7,5°). The preset "centre of measuring range" value can be set (see explanations on pages 9 and 10). Electrical connection is carried out via one male connector M12, 8 pins, A-coded or...

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Inclinometer NBA 17Pages

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Inclinometer NBA
17Pages