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frequency scan
The high resolution spectra are measured tuning the length of a CO2 waveguide laser by means of a PZT yielding a frequency scan of 230 MHz around the CO2 laser lines.
      
Our frequency scan data, as well as our data for the time course of resistance and capacitance, show that the fast change is associated with both the under-the-cells and between-the-cells resistance.
      
The high sensitivity of the intracavity arrangement allowed very strong double-resonance and two-photon transition signals to be observed with high microwave-frequency scan-rates (1 GHz/min), and low microwave pumping powers (≦10mW/cm2).
      
In this way an idler frequency scan of 100-150?GHz could be obtained, after which the signal frequency hops ahead over the FSR of the intracavity etalon of the OPO (207?GHz).
      
Low noise, mode-by-mode absorption spectra are recorded at a high acquisition rate (laser frequency scan greater than 400?GHz/s) and covering four orders of magnitude in absorption coefficient.
      
Pulses of another fish at a higher frequency scan from positive to negative latencies, evoking deceleration, or only a very small acceleration.
      
The frequency scan of the tuneable dye laser exhibits a broad resonance ionization signal, the width of which is most likely explained by the magnetic hyperfine interaction.
      
It is effective for BWT-Spectroscopy due to the absence of any mechanical adjustments during electronic frequency scan.
      
Possibility of continuous frequency scan of phase locked MM-wave oscillator within a full waveguide band is demonstrated.
      
It has been shown that the conventional frequency scan is not suitable for measurements of aluminum with a short thermal transport time such as foils, due to an extremely degraded signal-to-noise ratio (SNR).
      
Also, it has been found that the conventional frequency scan method is less sensitive to the actual value of thermal diffusivity than the rate-window scan.
      
The actuator tends to fracture or crack at the location of maximum stress, which is indicated by the sudden drop of the displacement during frequency scan.
      
Domain reorientation may also occur during the frequency scan, which results in the distortion of the current profile.
      
For the linear polymeric solutions, sodium carboxymethylcellulose and sodium alginate, the elastic modulus (G') increased with increasing amplitudes during frequency scan.
      
A new technology being introduced into wireless microphone receivers is the automatic frequency scan and set capability.
      
An initial frequency scan had identified a frequency at which the transducer voltage was at a maximum.
      
An example would be the PL4 output file from an ATP frequency scan.
      
Further improvement by optimizing the frequency scan range and step size is presently under investigation.
      
Hence, from a frequency scan in principle all three components can be determined.
      
It then sets itself to that frequency, or the user acknowledges the frequency scan result and sets the receiver manually.
      
 

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