Siemens Aktiengesellschaft

Richard Schneider

Guenter Doemens

Raimund Kram

Anton Schick

Michael Stockmann

Jochen Schlinkert

Hakan Koc

Karl Wild

Ulrich Hendricks

Günter Weber

The invention relates to a module for reproducing a transmitter signal (x). A control device () is coupled to a driving device () for controlling a machine while being coupled to the module () via a data bus () for exchanging data. A reproduced transmitter signal (x) is determined from a reference value (x) that is predefined by the control device with the aid of the module (). The module () is logically coupled to the control device () via the data bus () in such a way that the module () is projected in the same way as the driving device () from the perspective of the control device (). The inventive module () for reproducing a transmitter signal (x) thus makes it possible to project, start, and adjust the dynamics of the machine in a simple manner.

Module for reproducing a transmitter signal

The invention relates to an open-loop control process for the motional guidance of conveyed material () in a conveying device () and to a corresponding conveying device (). The conveying device () has a movable means () for realizing the conveyance and a first motion detector () for measuring a first actual position value (x) for the movable means () and a second motion detector () for measuring a second actual position value (x) for the conveyed material (). The control is herein realized with a position control having a position control clock (T) and with a speed control (GR) having a relatively faster speed control clock (T), in which, in the position control clock (T), desired position values (x) are preset as the command variable and, in the speed control clock (T), registered first actual position values (x) are fed back to the position control, in which the position control is provided, at least in part, in an open-loop control part (NC) and the speed control (GR) is provided in a drive part (A), and in which a control variable (R) is fed back into the position control, which control variable is dependent on second actual position values (x) registered in the position control clock (T). A high accuracy and dynamic can thereby be obtained.

Control method for guiding the movement of materials to be transported

Optical distance sensor

Testing techniques for three-dimensional testing of printed circuit boards overcome the disadvantages that presently exist such as, for example, too little height resolution, low processing speed and difficult manipulation. The testing in the microscopic domain occurs within unaltering, displaceable evaluation windows on the basis of the calculation of cross-sectional areas at each scan point on a printed circuit board. Microscopic testing occurs on the basis of the calculation of defined, simple geometric values within a scan field and by following comparisons to reference values. The arrangement for the implementation of the methods utilize a laser scanner for triangulation, an evaluation unit, and at least one high-resolution, position-sensitive detector.

Method and apparatus for three-dimensional testing of printed

An automated opto-electronic test system for quality control of two-dimensional elements with high geometric figure density, such as printed circuits, intermediate printed circuit products, and printing tools has a semiconductor image sensor disposed above a compound table having a position sensor which moves the test specimen beneath a lens in a meandering path at a velocity which is known relative to the semiconductor image sensor. The signals from the image sensor are first analyzed in an analog signal pre-precessor to which are connected a number of error recognition circuits operating in parallel each of which produces an error report which is transmitted to an error coordinating circuit. The error reports are therein associated with position coordinates on the test specimen which are supplied by the position sensor of the compound table and stored until a complete scan of the test specimen has been undertaken and are subsequently employed to move the test specimen to the positions at which the errors occur for visual examination such as by magnification. If the test specimen is a printed circuit, tests which are undertaken are a minimum geometry test measuring respective track and insulation widths, a solder eye test and a special geometry test for open and short circuits.

Automated opto-electronic test system for quality control of

Growing community of inventors

Erlangen, Germany

Richard Schneider