Übersetzung für "Calibration frequency" in Deutsch

A calibration at a frequency of 10 MHz is intended.

In particular, the calibration frequency of the measuring system is reduced or eliminated.

This analytical error should be maintained within the specified range by an appropriate calibration frequency.

Using magneto-inductive methods, the core and surface can be selectively examined by calibration of the frequency.

For this purpose, the method according to the invention is then made into an adaptive method, in which the calibration-position-specific, frequency-dependent phase difference vector ?0(f) is calculated or updated not merely from microphone signals which are captured once during calibration phase, but also from the microphone signals of the actual desired signals during operation.

The Working group is constantly working on an extension of the calibration in the frequency range of the millimeter waves above 50 GHz by developing new calibration equipment, transfer standards and calibration.

In the ultrasound range, the national institutes mainly use the two-transducer reciprocity method or laser interferometry for the calibration of discrete frequency points.

We help you determine which calibration procedures and frequency are required for your equipment to stay compliant.

This tool is indispensable to define the correct calibration frequency (how often the instrument should be calibrated)

It is then switched into operating mode, and the spectral filter function F is calculated for every current frequency-dependent phase difference vector depending on the previously determined calibration-position-specific, frequency-dependent phase difference vector.

According to a further embodiment of the invention, in operating mode with the previously calculated calibration-position-specific, frequency-dependent phase difference vector, the width parameter n is chosen to be smaller than in the uncalibrated operating state, in which the device is in default setting, compared with the initially taken operating mode.

According to an embodiment, therefore, the method further includes interference signals first being calculated out of the microphone signals of the current sound signals in operating mode using a concurrent, phase-sensitive noise model, before the calibration-position-specific, frequency-dependent phase difference vector ?0(f) is updated.

Thus updating, unnoticed by the user, of the calibration data is applied, the updating taking place whenever it is assumed that the current sound signals are desired signals in the meaning of the relevant application and/or the current configuration of the device and are not affected by interfering noise, so that from these sound signals, the calibration-position-specific, frequency-dependent phase difference vector ?0(f) is then determined.

For calibration, the pump, as was already done for the ascertainment of the reference frequency, is started up in a ramp-like manner by steadily (or at least substantially steadily) increasing the frequency of the frequency converter, and the calibration frequency f K is ascertained, which in the illustrated case is higher than the reference frequency f R .

In the current and voltage vectors just calculated in the frequency domain, those elements which describe frequencies below the lowest calibration frequency must therefore be zeroed out.