Velocity measurement - Import export

Speed Sensor with GPS and Accelerometer Fusion

Speed and Positioning Sensor with DGPS an Accelerometer Fusion

The measurement technique of LaserDopplerVelocimetry (LDV) is one of the most frequently applied modern measurement techniques in fluid mechanics to perform accurate local flow velocity measurements, which exhibits the advantage of a very high local and temporal resolution. Our technical department offers excellent conditions to perform such measurements (LDV).

CoriSENS is a rotation rate sensor for measuring angular velocity ω. It detects rotational movements using a MEMS gyroscope. This measuring signal in a range of ± 20° / s is converted by the sensor electronics and transmittes an analog current signal as well as voltage signal in addition. The sensor is certified according to uniform standards for electronic equipment on rail vehicles (DIN EN 50155) and can be operated directly with the usual onboard supply (110 V).

When using vibration transmitters, the vibration evaluation and the fault switch-off are outsourced, i.e. the alarm thresholds are parameterised in a separate evaluation unit or in a PLC that can record the trend development. Transmitters are current loop powered and output a normalised current signal corresponding to the vibration, which is then scaled in the system controller. The vibration transmitters of the 64x series are available with different measuring ranges and quantities (vibration velocity according to ISO 10816, vibration acceleration and vibration displacement, among others) that are related to the respective application. — Vibration transmitter with current output corresponding to the peak value of the vibration velocity — Measuring range 0 ... 12.7 mm/s — Output range 4 ... 20 mA — Frequency range 3 ... 1,000 Hz — 2-pin connection socket on top For an individual offer, please contact us directly.

Combining the bestThe ZHU250CL hardness tester employs the latest technology, with closed-loop control for test load application. The modern system for test load application (closed loop) stands out because of its precision. Accuracy exceeds the requirements of all relevant ISO and ASTM standards. Range of Hardness Applications: - Vickers according to ISO 6507, ASTM E384 - Knoop according to ISO 4545, ASTM E384 - Rockwell according to ISO 6508, ASTM E18 - Brinell according to IS0 6506, ASTM E10 Features: • Extremely wide test force range of 0.5 kg to 250 kg • Unique “4-plus-4” turret able to carry up to 4 lenses and up to 4 indenters simultaneously. The turret is also designed to allow testing in hard to reach positions by using a unique vertical rotation mechanism. • Variable dwell times 5-60 seconds • Ability to vary indenter approach velocity • Rockwell depth measured by the market leading Indentec transducer capable of a measuring resolution of 0.1 Rockwell point

For the generation and production of a spray the knowledge of information like the desired droplet size and its distribution is of fundamental importance. In order to characterise a spray correctly, one has to know the droplet size distribution of the droplets, which were generated out of a given liquid. In many applications it is desired to produce very small droplets. For the design and lay out of inhalers for example, it is necessary to achieve droplet sizes not larger than approximately 10 μm to be absorbed by the lungs. When one designs an atomisation nozzle in view of the desired droplet size distribution, one has to make sure via measurements, that the nozzle is really able the produce the expected droplet size distribution within an acceptable uncertainty range. Besides the droplet size distribution, the droplet velocity is an important parameter since it is a measure of the droplet momentum.

The particle image velocimetry (PIV) is an optical noninvasive working flow velocity measurement method. The flow field is made visible by introducing into the fluid small buoyancy neutral particles – the so called tracers. The particle flow then is illuminated with the aid of a light sheet and recorded at two defined different times within a small time interval with a digital camera. Because the particle move within this time interval with the flow, one can calculate the particles velocity by knowing its path between the two moments of illumination. The result is a velocity vector field of the flow. Here, we assume that the particles are small and follow the flow without any slip. Compared to local methods like LaserDopplerVelocimetry (LDV) with the ParticleImageVelocimetry one can reconstruct a whole flow region An extension of ParticleImageVelocimetry is the combination of PIV with thermometry (PIV/T).