Other

Avl Gesellschaft Fur Verbrennungskraftmaschinen Und Messtechnik M.b.h.

Hans List

Rudolf Zeiringer

Peter Claassen

Helmut List

Peter W Krempl

Peter Krempl

Klaus Leitmeier

Gerhard Woss

Heimo Denk

Johann Stubenberg

Measuring device for determining distance

A pressure sensor which comprises one or more measuring elements situated in a housing and a plate membrane sealing the housing against the medium to be measured and being attached to the measuring element on order to transmit the pressure to be measured, the plate membrane having curved or conically-shaped part which extends into the interior of the housing and compensates for temperature shock drifting.

Pressure sensor

A pressure measuring device is provided with a change-over valve connecting the pressure sensor either with the pressure to be measured or with a reference pressure. The change-over valve is actuated by a separate control pressure and will protect the pressure sensor from the influence of the pressure medium to be measured in the spring-loaded idle position of the valve.

Pressure measuring device

A device for ascertaining the internal pressure in a pressure system, particularly in a fuel injection pipe system, wherein the pressure to be measured is contained within an element which includes at one point a wall portion of reduced thickness so as to act like a membrane, and wherein a sensor device is included which is positionable in engagement with the membrane-like wall portion to detect any elastic deformation and variation of the membrane caused by the influence of the internal pressure.

Means for ascertaining the internal pressure in a pressure pipe system

A transducer device for measuring mechanical values on hollow bodies, such as the internal pressure in pipes, by detecting deformation in the outer surface thereof, comprises a housing for removably enclosing the hollow body whose outer surface deformation is to be measured and at least one elastic sensor element which is capable of being elastically and at least indirectly pressed against the outer surface of the hollow body by an elastic endorsing element and capable of stretching due to the deformation of the hollow body due to frictional contact therewith. The endorsing element is combined with the sensor element and/or at least a part of the housing into one piece, whereby manufacture and adjustment of the transducer device are simplified.

Transducer device for measuring mechanical values on hollow bodies

In a pressure indicator for measurement of hot pressure mediums, comprising an indicator housing adjustable to an opening in an enclosure for the medium to be measured, a measuring element, and a power train comprising a diaphragm connected to the housing and a power transmission element for connecting the diaphragm to the measuring element, a narrow gap is provided for between at least one of the parts of the power train on the one side and the housing on the other side, and that part of the housing being adjacent the gap is substantially in direct heat conducting connection with the enclosure for the medium when the indicator is adjusted to the opening therein.

Pressure indicator for measurement of hot pressure mediums

A transducer device for measuring mechanical values on hollow bodies, which comprises a housing and at least one elastic sensor element mounted in the housing. The element is so formed as to be connected with at least two points of the housing and has a free length between these connecting points so as to be stretched over the surface of the hollow body when the transducer device is attached.

A transducer device for measuring the internal pressure in pipe comprises a housing made of two parts, a connecting element which acts for a hinge connection between the housing parts, and a chucking device for clamping the housing parts onto the pipe. To enable a simple handling and mounting of the device and to avoid effects on the measuring signals resulting from mechanical vibrations of the pipe, the chucking device is performed as a snapping catch and comprises a clamp and a spring clip. The clamp is hinged supported at that side of one of the housing parts being opposite the connecting element. The spring clip is hinged supported at the clamp and coacts in locked position of the chucking device with a notch arranged on the other one of the housing parts.

Transducer device for measuring the internal pressure in a pipe

A transducer device for measuring the internal pressure in pipes, comprises two housing parts which are articulately connected with one another by a connecting element and adapted to be fixedly mounted on the pipe by means of a clamping device. Each housing part contains at least one measuring element with a bipolar take-off of the test signals. At least one pole of each take-off is electrically conductingly connected with a part of the connecting element which is electrically insulated relative to the other pole and the connecting element comprises connection terminals for the further conduction or transmission of the test signals. The other pole is potentially in direct connection with the pipe. Thereby, a convenient and easy way is created for achieving electric compensation of the interfering signals within the transducer itself, thus replacing the separate, in each case bipolar conduction of the test signals out of the two housing parts with a combined, now altogether bipolar outgoing lead for the fully compensated test signals from the transducer.

Transducer device for measuring the internal pressure in pipes

A transducer for measuring the internal pressure in pipes, preferably injection pipes of diesel engines by determination of pipe deformations, comprises a rigid housing enclosing the pipe in which the pressure is to be measured, and at least one elastic sensor element arranged inside the housing and adjacent to at least a part of the circumference of the pipe. The sensor element and the housing are detachably mounted on the pipe and between the housing and the sensor element there is arranged an endorsing element elastically forcing the sensor element against the pipe whereby deformations of the pipe are transmitted frictionally to the sensor element.

Growing community of inventors

Graz, Austria

Rudolf Zeiringer