I have found a versatile universal function generator.
http://www.vellemanusa.com/products/view/?country=us&lang=enu&id=523616
It covers a broad range of frequencies from 0.001 Hz up to 25 MHz.
Though the datasheet says 2 MHz competent Vellemann support tells the expanded range for pulses: http://forum.velleman.eu/viewforum.php?f=11
Sine, triangle and rectangular waveforms at variable voltage output are as remarkable as isolated USB connection to a PC as UI.
But most amazing is the feature to control the generator from an external program.
I have programmed a very first version of the program to produce user defined pulse trains usable for replication of Stan Meyer technology.
In contrast to hardware based solutions this generator can produce any pulse frequency train by a mouseclick. that way pulse train design becomes very easy, pulse trains can be protocolled and perfectly reproduced.
timers can be applied not only for frequency sweeps but also for gate time sweeps, duty cycle sweeps or all together.
due to software control pulses with timing of high complexity can be realized i.e.
16 pulses at 4 KHz duty cycle 30% on followed by 0.1 s gating pause then followed by 64 pulses at 16 kHz then followed by 3 seconds pause etc.
each created pulse train can be observed according to gas production and be documented in a protocol file linked to the actual pulse train.
the pulse output must be connected to a power stage which drives the VIC transformer.
perfect device!
bussi04
Here is a short description of the user interface:
you can input a single pulse timing by entering frequency and duty cycle or by entering pulse on and off times in µs. you can enter the number of pulses that shall build the pulse train and the same for the gating.
all values can be incremented and decremented using a user defined increment factor.
immediately or demanding a button push the new pulse train is generated.
the pulse voltage output level can be 5V TTL to be compatible to any pulse transformer driver.
For my purposes I have developed the following driver:
the snubber diodes P6KE are added to suppress reverse voltage spikes propagating reverse from the primary coil.
take care that all wires driving transformer amp flow are short and don´t influence the control stage to avoid vagabunding oscillations.
enjoy
bussi04
http://www.vellemanusa.com/products/view/?country=us&lang=enu&id=523616
It covers a broad range of frequencies from 0.001 Hz up to 25 MHz.
Though the datasheet says 2 MHz competent Vellemann support tells the expanded range for pulses: http://forum.velleman.eu/viewforum.php?f=11
Sine, triangle and rectangular waveforms at variable voltage output are as remarkable as isolated USB connection to a PC as UI.
But most amazing is the feature to control the generator from an external program.
I have programmed a very first version of the program to produce user defined pulse trains usable for replication of Stan Meyer technology.
In contrast to hardware based solutions this generator can produce any pulse frequency train by a mouseclick. that way pulse train design becomes very easy, pulse trains can be protocolled and perfectly reproduced.
timers can be applied not only for frequency sweeps but also for gate time sweeps, duty cycle sweeps or all together.
due to software control pulses with timing of high complexity can be realized i.e.
16 pulses at 4 KHz duty cycle 30% on followed by 0.1 s gating pause then followed by 64 pulses at 16 kHz then followed by 3 seconds pause etc.
each created pulse train can be observed according to gas production and be documented in a protocol file linked to the actual pulse train.
the pulse output must be connected to a power stage which drives the VIC transformer.
perfect device!
bussi04
Here is a short description of the user interface:
you can input a single pulse timing by entering frequency and duty cycle or by entering pulse on and off times in µs. you can enter the number of pulses that shall build the pulse train and the same for the gating.
all values can be incremented and decremented using a user defined increment factor.
immediately or demanding a button push the new pulse train is generated.
the pulse voltage output level can be 5V TTL to be compatible to any pulse transformer driver.
For my purposes I have developed the following driver:
the snubber diodes P6KE are added to suppress reverse voltage spikes propagating reverse from the primary coil.
take care that all wires driving transformer amp flow are short and don´t influence the control stage to avoid vagabunding oscillations.
enjoy
bussi04