What is the difference between spindle encoder pulse generator ?！

What is the difference between spindle encoder and pulse generator ?

Spindle with the spindle encoder uses synchronous optical pulse generator, via the intermediate shaft gear 1: 1 to synchronous transmission. Spindle rotation between the feed movement, not directly linked to the mechanical aspects, in order to process the thread, it is required for a given number of pulses feed servo motor and spindle speed should correspond to the relationship between the spindle from the pulse generator Contact to the effect of the spindle rotation and feed movement.
Spindle encoder is a magnetic grid collar on the shaft, the sensing head mounted on the side.

pulse generator

Its signal waveform is divided into four categories:

Graphical representation of the pulse generator

① sinusoidal signal generator. Mainly used for measuring the frequency characteristics of circuits and systems, nonlinear distortion, gain and sensitivity. According to their different properties and applications can be subdivided into low frequency (20 Hz to 10 MHz) signal generator, high-frequency (100 kHz to 300 MHz) signal generator, microwave signal generators, sweep and programmable signal generator, frequency synthesis signal generator.
② function (waveform) signal generator. It can produce certain periodic time function waveform (sine, square, triangle, sawtooth and pulse waves) signal, the frequency range from a few Hz to several tens of megahertz micro. Except for communications, instrumentation and automatic control system test, but also widely used in other non-electric measurement.
③ pulse generator. Can produce width, amplitude and repetition rates of the rectangular pulse generator can be used to test the transient response of a linear system, or as an analog signal to test the radar, and other multi-way communication systems digital pulse.
④ random signal generator. Usually divided into noise signal generator and a pseudo random signal generator categories. Noise signal generator main purposes are: the introduction of a random signal in the test system, and the performance measurement system to simulate actual working conditions of noise; plus a known noise signal and an internal system to measure the noise is the noise factor; random signal instead of sine or pulse signal to determine the dynamic characteristics. When using the noise signal correlation function measurement, if the average measurement time is not long enough, there will be a statistical error, it can be used to solve the pseudo random signal.

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