using voltage controlled oscillator
motor can be control by using variable frequency drive
frequency is genrally cycle per second, and frequencies may be of a dc nature or ac , devices which convert dc frequency in to an ac frequency are frequency converters and devieces which convert ac frequency in to dc frequency are frequency inverters. because in terms of power electronics, devices which convert ac to dc are called converters, and devices which convert dc in to ac are called "inverters" 'mehboob hunzai" I'm a engineers in this devices, the frequency inverter is convert AC to AC but with variable frequency output, means the frequency & voltage are adjustable; The frequency converter can convert DC to AC, like 24VDC to 220VAC and also the frequency is adjustable. One most important thing is the out power of frequency inverter just can be used for controlling AC motor, while frequency converter can be treated as normal power supply as our daily using power grid. "zhuge fs"
Use a variable Frequency Drive. Sold by ABB, Allen-Bradley, and many others.
by using a frequency tuner in input we can change input frequency and in this way speed of dc motor will also vary. <<>> Varying the frequency (VFD) only works on AC motors.
A static frequency converter works by converting input AC power at one frequency into output AC power at a different frequency without the need for mechanical components. This is achieved by using power electronics components like transistors and capacitors to adjust the frequency of the electrical signal. Static frequency converters are commonly used in applications where different frequencies are required, such as aircraft and ship power systems.
To input frequencies for a particular variable, you can create a frequency table that lists each unique value of the variable along with the number of times it occurs in the dataset. This can be done manually or by using statistical software or tools that provide frequency analysis.
Using one of these converters will help to get the job you need down easier and faster then by doing it by hand it can easier to have one of these gadgets then not to have one
Rhodium can be extracted from a catalytic converter by crushing the converter to a fine powder, then using a chemical process involving acids to dissolve the rhodium. The dissolved rhodium can then be separated and purified through various methods to obtain the pure metal.
class midpoints can be computed
The process of extracting metals from a catalytic converter involves crushing the converter to release the metals, then using a furnace to separate the metals from the ceramic material. The metals are then further processed to remove impurities and obtain pure metals for recycling.
By changing the voltage through a potentiometer ( eg fan regulator )
Convert in coming signal to D.C. using a bridge rectifier. Use the voltage to run a voltage to frequency converter. You will have to scale the incoming signal to match the frequency range desired.