Ulrich Opara

Title: Innovations of Ulrich Opara

Introduction

Ulrich Opara is a notable inventor based in Munich, Germany. He has made significant contributions to the field of ultrasonic test instruments and voltage generation systems. With a total of 3 patents, Opara's work showcases his expertise and innovative spirit.

Latest Patents

One of Opara's latest patents is a method and system for generating and adjusting a predetermined quantity. This invention relates to a method and circuits for the generation and rapid adjustment of direct current voltages. The method is particularly useful for adjusting amplifiers and amplitude and time gates in ultrasonic test instruments. The voltage to be generated is selected by a selector switch, and its value can be increased or decreased by means of a set switch. The appropriate contents of storage locations of a read-write memory (RAM) are successively read out for setting the count of a binary counter. The count may be incremented, decremented, or left unchanged according to the position of the set switch and the selector switch. The binary counter contents are then written back into the appropriate storage location of the memory and converted by a digital-to-analog converter (DAC) to an analog value, which is temporarily stored by a capacitor. This process allows for a continuously recurring sequence where the voltage value can be changed by zero or one digital increment. In an alternative embodiment, the repetition frequency is increased by a voltage-controlled oscillator (VCO) to reduce the time required to complete each individual cycle.

Another significant patent by Opara involves ultrasonic test instruments that utilize wide-band test probes of different nominal frequencies. This invention discloses an arrangement where each wide-band test probe is coupled in circuit with a receiving amplifier that has a specific frequency response. The frequency response of the receiving amplifier is selected so that the product comprising the spectral distribution of the transmitter and the frequency response of the receiving amplifier remains substantially constant up to the nominal frequency of the test probe. This ensures optimal performance for the transmitters used in ultrasonic test instruments.

Career Highlights

Ulrich Opara is currently employed at Krautkramer Branson, Inc., where he continues to innovate and develop advanced technologies in his field. His work has significantly impacted the efficiency and effectiveness of ultrasonic testing methods.

Collaborations

Opara has collaborated with notable colleagues, including Hanno Jacobs and Franz Selleschy, contributing to various projects and advancements