In measuring and other equipment devices are used to multiplication and division of tension and frequency into the fixed coefficient. That to increase this coefficient, it is necessary to make changes to a design of knot.
Instruction
1. Dividers of frequency are carried out on the basis of counters and also generators with external synchronization. They multiply the frequency of the arriving signal by coefficient, smaller units. That to increase this multiplier, switch a divider exit to the counter trigger closer to an entrance, having reduced thereby the number of triggers through which there passes the signal, or adjust the synchronizable generator on frequency, in 2, 4, 8, 16, etc. time big in comparison with initial.
2. Frequency multipliers are the oscillatory contours excited by impulses of smaller frequency or the two-half-period rectifiers without filters loaded on the special transformers calculated on existence of a constant component. In the first case for increase in coefficient of multiplication adjust a contour on big frequency, in the second - increase number of links. If the signal fades too strongly because of a significant amount of links, use intermediate intensifying cascades.
3. The divider of tension consists of two resistors, one of which is included between an entrance and an exit, and the second - between an exit and the general wire. It multiplies tension by coefficient, smaller units. That to increase this multiplier, take the first resistor of smaller resistance in comparison with initial, and the second - bigger. It is possible to replace two constant the resistor with one variable, and the multiplier will be smoothly regulated.
4. Multiplication of tension by coefficient, bigger units, carry out by means of amplifiers. If the amplifier has no feedback chain, apply in it an active element with big coefficient of strengthening. In the presence of a chain of positive feedback make this communication deeper, without allowing self-excitation of a cascade. If there is a chain of negative feedback, weaken it. Consider that with increase in coefficient of strengthening also distortions increase.