2019-5-21 At high frequencies, the electric response of a material lags behind the applied field and creates loss. In the RF through millimeter range of wavelengths, the permittivity of low-loss materials will generally slowly decrease as frequency increases, and the loss tangent will generally increase as frequency increases, in
2016-4-6 High Frequency Electric Vibrators Model Diameter Length Kg CF (N) Amplitude Noise dB Hose Cable Input Volt 1 phase Output volt 3 phase BTHFE38 38mm 345mm 14,5 1600 2.7mm 70 5m 15m 220 215 BTHFE50 50mm 395mm 18,6 3900 2.9mm 71 5m 15m 220 215 BTHFE58 58mm 420mm 20,8 5700 3.0mm 71 5m 15m 220 215
2017-2-7 A "home made" high frequency amplifier is driven by a digital function generator is used to provide around 150Vrms at the test frequencies of 320kHz/400kHz/460kHz. An oscilloscope monitors the test waveform for harmonic distortion and confirm it is <0.3%.
How to measure high frequency current signals? I have an application where I need to measure current signals with frequency 2 MHz to 5 MHz. The current signal variation will be in the order of few
2005-11-15 This makes designing high-frequency circuits a rather specialised subject, although much can still be resolved under the lumped circuit assumption. But as the frequency moves up to GHz range, we have serious trouble using lumped circuit models because voltage and current change within the physical boundary of the circuit as a result of the wavelength being comparable to the dimension of
2015-3-27 The first step to calculate a high frequency transformer is to choose an appropriate core with the help of the databook, the size of the core is dependent on the transfer power and the frequency. The second step is to calculate the number of primary turns. This number determines the magnetic flux density within the core. The number of secondary turns is the ratio of primary to secondary voltage.
2006-5-25 Unfortunately powerful high frequency power supplies are not completing regular devises for measurement of inductor current, voltage and power factor. Design philosophy and important characteristics of sensors for measure of voltage up to 10 kV and current up to 400 A at frequency 1.7 1.9 MHz are describes in the paper.
2021-2-5 High and low frequencies are dependent on the application. A low frequency for wifi would be 2.4GHz, while a high frequency would be 5GHz. For human speech a low frequency is 300Hz, while a high frequency is 3000Hz. A graph of a fft (Fast Fourier Transform) allows us
It shows the AC-resistance and the high frequency losses increase with the frequency as ther single wire thickens. At a target frequency of 1 MHz the construction with 50 µm single wires has the best results. Nevertheless, the related R AC /R DC-factor of 1.29 is still significantly higher
2019-5-21 At high frequencies, the electric response of a material lags behind the applied field and creates loss. In the RF through millimeter range of wavelengths, the permittivity of low-loss materials will generally slowly decrease as frequency increases, and the loss tangent will generally increase as frequency increases, in
2016-4-6 High Frequency Electric Vibrators Model Diameter Length Kg CF (N) Amplitude Noise dB Hose Cable Input Volt 1 phase Output volt 3 phase BTHFE38 38mm 345mm 14,5 1600 2.7mm 70 5m 15m 220 215 BTHFE50 50mm 395mm 18,6 3900 2.9mm 71 5m 15m 220 215 BTHFE58 58mm 420mm 20,8 5700 3.0mm 71 5m 15m 220 215
2017-2-7 A "home made" high frequency amplifier is driven by a digital function generator is used to provide around 150Vrms at the test frequencies of 320kHz/400kHz/460kHz. An oscilloscope monitors the test waveform for harmonic distortion and confirm it is <0.3%.
How to measure high frequency current signals? I have an application where I need to measure current signals with frequency 2 MHz to 5 MHz. The current signal variation will be in the order of few
2005-11-15 This makes designing high-frequency circuits a rather specialised subject, although much can still be resolved under the lumped circuit assumption. But as the frequency moves up to GHz range, we have serious trouble using lumped circuit models because voltage and current change within the physical boundary of the circuit as a result of the wavelength being comparable to the dimension of
2015-3-27 The first step to calculate a high frequency transformer is to choose an appropriate core with the help of the databook, the size of the core is dependent on the transfer power and the frequency. The second step is to calculate the number of primary turns. This number determines the magnetic flux density within the core. The number of secondary turns is the ratio of primary to secondary voltage.
2006-5-25 Unfortunately powerful high frequency power supplies are not completing regular devises for measurement of inductor current, voltage and power factor. Design philosophy and important characteristics of sensors for measure of voltage up to 10 kV and current up to 400 A at frequency 1.7 1.9 MHz are describes in the paper.
2021-2-5 High and low frequencies are dependent on the application. A low frequency for wifi would be 2.4GHz, while a high frequency would be 5GHz. For human speech a low frequency is 300Hz, while a high frequency is 3000Hz. A graph of a fft (Fast Fourier Transform) allows us
It shows the AC-resistance and the high frequency losses increase with the frequency as ther single wire thickens. At a target frequency of 1 MHz the construction with 50 µm single wires has the best results. Nevertheless, the related R AC /R DC-factor of 1.29 is still significantly higher