Oil film thickness measurement in an internal combustion engine

The knowledge of the behavior and the thickness of the oil film between the cylinder wall and piston or piston rings minimize pollutants and reduce the oil consumption in the current engine development. The spacing of the piston rings to the cylinder wall is measured in tests on real engines and under realistic operation conditions. For the measurement it is assumed that the gap between the cylinder wall and the piston rings is completely filled with oil. Product/sensor

 

Active suspension cylinder

Modern mobile cranes are employed not only on metalled roads but also in open terrain. Therefore, these cranes possess an adaptive design of running gear in which the suspension of each independent axle can be adapted to the relevant terrain. This is implemented using a suspension cylinder which is fitted with a displacement sensor. The sensor acquires the cylinder stroke and consequently enables the best possible adaptation to the form of the terrain. Product/sensor

 

Clutch wear in racing cars

Pioneering technologies are often first tested in racing cars before they find their way into mass production. And in this respect the clutch is a component that is subjected to the highest stresses. Audi Sport monitors the clutch wear during the race. A displacement sensor which is located directly on the clutch release bearing is used to measure the normal stroke of the clutch as well as its wear. The stresses that prevail here are enormous: the sensor withstands temperatures up to 150°C and shocks and vibrations without damage. Product/sensor

 

Monitoring the clamping of tools

Previously, proximity sensors and connector rings, which supplied a switching signal, were used for monitoring the clamped position. However, this had to be adjusted and set in a complicated manner. Analog sensors from the Series vipSENSOR offer a significant improvement. The sensor is integrated into the release unit and directly measures the clamping stroke of the drawbar. It can be universally used with the most varied types of tool due to an extremely compact design. Product/sensor

 

Measurement of the tilt angle on tilting trains

Through the application of tilting trains existing track can be traveled at higher speeds and consequently used more efficiently. Displacement sensors fitted to the front end of the vehicle determine the required degree of tilt of the coach body when taking bends in order to compensate for the "arising sideward acceleration". This data are passed to the hydraulic cylinders in the following coaches which then tilt the coach bodies appropriately. The degree of tilt is acquired by a position sensor of the Series strokeSENSOR. Product/sensor

 

Load detection in washing machines

The displacement sensors of the Series ILU (Integrated Load and Unbalance Sensor) measures the depression of the suds container when the washing machine is loaded and its deviation during the spinning stage. Due to the inductive measurement principle, the sensor provides an absolute position acquisition for static and dynamic processes. The patented VIP sensor principle enables the integration of the sensor into a compact frictional damper. Therfore the sensor is mounted in the washing machine with the frictional damper as an integrated constituent part in one working step. Product/sensor

 

Compensation of the thermal extension

Fluctuations of temperature lead to thermal extension and therefore too erroneous in the milling process. A highly precise, non contact displacement sensor of MICRO-EPSILON measure this shift of the spindle. With the information from the sensor the CNC-control unit can do a active compensation of the axial extension. The accuracy of the milling process can be improved much more like with a temperature sensor. Product/sensor

 

Piston position in hydraulic valves
	In hydraulic drives proportional and servo valves control the volume flow of hydraulic oil. In order that an exact dosage, and therefore a controlled movement is possible, displacement sensors are integrated into the valves. These sensors acquire the position of the control piston to regulate the volume flow. Product/sensor

 

Pneumatic slide valve position

Pneumatic control valves are employed in chemical engineering for regulating liquid and gaseous media. In order to achieve a constantly high level of process reliability, the flow rate must be controlled exactly. A slide in the control valve changes the opening for the flow and controls therfore the flow rate. An inductive displacement sensor, which measures the slide position, is joined to the slide. A microcontroller evaluates the signal of the displacement sensor and handles the closed-loop control, parameterization and bus linkage of the control valve. Product/sensor

 

Coordinate measuring machine
	The accuracy of a coordinate measurement machine depends decisively on extensive compensation of disturbing influences. When probing the work piece, for example, a force is exerted on the probe tip, causing a slight bending. The inductive displacement sensors measure the bending of the probe and provide correction values for the compensation. Product/sensor

 

Precision synchronized lifting system

Synchronized lifting systems enable the raising and lowering of heavy loads controlled for distance and force or the controlled forward feed of large components. The travel displacement of each hydraulic cylinder is measured with a Series P60 draw-wire sensor. Due to their compact shape, they are easy to fit even under tight spatial conditions. Complicated alignment is not necessary. The measuring wire is simply attached to the load or component with a hook. The output signal from the displacement sensors which is proportional to the displacement (resistance value, voltage, current or increment) is fed into a PLC which controls the synchronism of the cylinders. Product/sensor

 

Engagement length control in high performance screwdrivers

Industrial screwing in automated production systems is carried out by automatic screwdrivers. Apart from the torque, the engagement length is the most important criterion for the quality of the screwing operation. Generally, the engagement length, i.e. the screw-in depth, is determined with the aid of a mechanical end-stop or by using a limit switch. Consequently, once set, the engagement length cannot be changed during the production process. The inductive potentiometric displacement sensors in the VIP Series provide decisive advantages in this application. The continuous measurement of the engagement length enables screwing operations with various depths to be carried out at the same station. This means that it is now possible to realize different engagement lengths automatically at the station by appropriate program selection. Product/sensor

 

If you can’t find your required application or have special requirements that are not listed here, please contact us.