• No results found

Frequency measurement

Frequency Measurement of Transient Oscillatory on LABVIEW

Frequency Measurement of Transient Oscillatory on LABVIEW

... the frequency measurement of power system transient oscillatory signal with respect to noise signal, a new measurement method based on Wavelet Transform and Win- dowed Fourier Transform is ...

7

Sensitivity Enhancement in Digital Instantaneous Frequency Measurement

Sensitivity Enhancement in Digital Instantaneous Frequency Measurement

... the frequency resolving and processing circuits are implemented in ...low frequency IF amplifiers, filters and phase detector can be used for frequency ...

8

Research on Monobit Frequency Measurement Algorithm with Split radix FFT

Research on Monobit Frequency Measurement Algorithm with Split radix FFT

... With the fast development of radar technology, wideband and multi-tone digital receivers are required urgently. Thus, a kind of monobit receiver, whose concept comes from commercial GPS receivers, was designed. To get ...

7

A New Low Cost Instantaneous Frequency Measurement System

A New Low Cost Instantaneous Frequency Measurement System

... Instantaneous Frequency Measurement (IFM) system is presented in this ...The frequency is then estimated from the power level of the filtered ...the frequency estimator is ...working ...

10

2 to 4 GHz
 Frequency Discriminator for RF Front-End Instantaneous Frequency Measurement Receivers

2 to 4 GHz Frequency Discriminator for RF Front-End Instantaneous Frequency Measurement Receivers

... the frequency for this stage could be solved by the measured frequency in the first ...The frequency measurement error is shown in Figure 22, where the ambiguity was resolved and the ...

10

High frequency measurement of ultrasound using flexural ultrasonic transducers

High frequency measurement of ultrasound using flexural ultrasonic transducers

... high frequency ultrasound is often desirable to reduce the interference of the system noise with a centre frequency of several dozens of kHz, originating from components inside flow structures such as ...to ...

8

Valve train natural frequency measurement and analysis

Valve train natural frequency measurement and analysis

... Figure 50 Time Trial Four, and Frequency Responses for the Step Input Test, ID#71, Base Circle, Valve Spring Shimmed, ID 71 Base Circle, Shimmed Valve Insl Time Start Load 60 lb... Figur[r] ...

127

Design Modification of Rogowski Coil for Current Measurement in Low Frequency

Design Modification of Rogowski Coil for Current Measurement in Low Frequency

... high frequency measurement, it reveals information concerning the idea upon which the variation in termination elements (for ...current measurement particularly, for the phase ...

6

Customized SmartPeg for measurement of resonance frequency of mini dental implants

Customized SmartPeg for measurement of resonance frequency of mini dental implants

... resonance frequency assessment with a custom- ized SmartPeg would be a useful tool to provide clinic- ally useful information about the condition of the bone- implant interface of 3M™ ...Resonance frequency ...

7

Measurement of frequency occupancy levels in TV bands in urban environment in Kosovo

Measurement of frequency occupancy levels in TV bands in urban environment in Kosovo

... Based on the measurements conducted at the 8 above mentioned locations, the TVWS spectrum availability was assessed. The received power was measured in dBm over the TV bands, with a frequency resolution of 100 ...

5

Influence of supply frequency on dissipation factor measurement and stator insulation diagnosis

Influence of supply frequency on dissipation factor measurement and stator insulation diagnosis

... Of course, we can see that the tangent delta is inversely proportional to the frequency. But the main interest of the low frequency is the physics of the material. The polarization and relaxation phenomena ...

5

Low frequency strip waveguide array for flow measurement in hostile environments

Low frequency strip waveguide array for flow measurement in hostile environments

... Transit time ultrasonic meters are not without issue though, bubbles and particulate matter in the fluid can attenuate the ultrasonic waves, preventing the signal from being detectable at the other end of the path and ...

171

Smoothed Quantiles for Claim Frequency Models, with Applications to Risk Measurement

Smoothed Quantiles for Claim Frequency Models, with Applications to Risk Measurement

... The smoothed quantile function (3.1), its properties, and probabilistic behavior of its estimator are valid for discrete distributions with finite support, i.e., when d < ∞ . For discrete distributions with infinite ...

95

Measurement of local fluid levels and oscillation frequency on the reconstructed hydrodynamic table

Measurement of local fluid levels and oscillation frequency on the reconstructed hydrodynamic table

... Measurement of local fluid levels and oscillation frequency on the reconstructed hydrodynamic tableM. Owned by the authors, published by EDP Sciences, 2014..[r] ...

6

A frequency response based method of sound velocity measurement in an impedance tube

A frequency response based method of sound velocity measurement in an impedance tube

... velocity measurement being influenced by the reflection coefficient of the transmitting transducer at the bottom of the acoustic tube, the value fluctuates within a certain ...average frequency difference ...

11

Dielectric measurement of azadirachta indica (bark) at 9 85 ghz frequency

Dielectric measurement of azadirachta indica (bark) at 9 85 ghz frequency

... temperature may be due to increase in the effective length of dipole. In addition, due to increasing temperature, number of collision increases because increase in energy loss and thereby decreasing relaxation time. ...

5

Measurement and Analysis of Extremely Low Frequency Electromagnetic Field Exposure in Oman

Measurement and Analysis of Extremely Low Frequency Electromagnetic Field Exposure in Oman

... Low Frequency (ELF) electromagnetic fields is increasing ...low frequency magnetic and electric fields caused by conductors carrying current in the Oman electric power ...

7

Determination of soil thickness based on natural frequency using 
		microtremor measurement

Determination of soil thickness based on natural frequency using microtremor measurement

... Dinesh, B. V., Nair, G. J., Prasad, A. G. V., Nakkeeran, P. V. and Radhakrishna,M. C., Estimation of sedimentary layer shear wave velocity using micro-tremor H/V ratio measurements for Bangalore city. Soil Dynamics and ...

5

Precision measurement of the Bºs   Bºs oscillation frequency with the decay Bºs → Dsπ+

Precision measurement of the Bºs Bºs oscillation frequency with the decay Bºs → Dsπ+

... LHCb Collaboration (Including: Back, John J., Craik, Daniel, Dossett, D., Gershon, Timothy J., Harrison, Paul F., Kreps, Michal, Latham, Thomas, Pilar, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., ...

17

Design and Measurement of Microwave Absorbers Comprising Resistive Frequency Selective Surfaces

Design and Measurement of Microwave Absorbers Comprising Resistive Frequency Selective Surfaces

... = . (1) After some analytical manipulations, the relationship between the permittivity and the thickness d of the di- electric layer can be derived. In Figure 2 the reflectivity of the Salisbury screen obtained by full ...

7

Show all 10000 documents...

Related subjects