1. A rotational cutting machine, it has a base and is characterized in that:
on one side of the base is a first motive power source which can bring a cutting blade to rotate; on the other side near the blade is equipped with a fixing tool for tightly holding an object to be cut, besides the fixing tool is a second motive power source, which can bring the object to be cut to rotate, and the fixing tool is set on a movable platform of the base; when cutting the object, the first motive power source can turn the blade rotate, while the second motive power source turns the object to rotate, by moving platform, the object to be cut is moved closer to the blade, such that the object tightly hold by the fixing tool can be in touch with the cutting blade, as a result the object is cut quickly and accurately.
2. The rotational cutting machine as claimed in claim 1, wherein the said fixing tool has a T-shape sleeve with its one end inserts into a hole of a fix plate on said base, and the other end of T-shape sleeve is exposed outside said hole and forms as an outer flange; the object to be cut is clipped by a tubular holder and then the tubular holder is inserted into said T-shape sleeve, the tubular holder has a main component and secondary component screwed into one entity, inside the entity is a clipper which is in cylinder shape, and is made in an elastic construction with a plurality of clipping claws.
3. The rotational cutting machine as claimed in claim 1, wherein the said first motive power source is a motor, the motor is set onto a fix plate of said base, while the cutting blade is circular shape, and is set on the axis of the motor, such that the motor can active the blade to rotate.
4. The rotational cutting machine as claimed in claim 1, wherein the said second motive power source is a motor, the motor is set onto a fix plate that forms a part of a is movable platform, on the shaft of motor is a belt, one end of it wraps on the shaft of the motor, while the other end wraps around the fixing tool, so that the motor can use the belt to rotate the fixing tool.
5. The rotational cutting machine as claimed in claim 1, wherein said fixing tool is set on a fix plate of a movable platform, so the fixing tool can get into rotation by said second motive power source, and the object to be cut can be pushed out of fix plate to get in touch with the blade, then to be cut.
6. The rotational cutting machine as claimed in claim 1, wherein the said movable platform has a main fix base plate, beneath the fix base plate is a first adjustable platform, the bottom of said first adjustable platform is mounted with a second adjustable platform that moves in X direction (left-right direction), such that the second adjustable platform can move in X direction under the first adjustable platform, and the bottom of second adjustable platform is mounted with a third adjustable platform that moves in Y direction (back-and-forth direction), such that the third adjustable platform can move in Y direction under the second adjustable platform.
7. The rotational cutting machine as claimed in claim 1, wherein said first adjustable platform has an adjustable base at its side, inside the adjustable base is a joint pole, while second adjustable platform has a second adjustable base at its side, inside the second adjustable base is an adjusting pole, the front end of the adjusting pole is joined to the end of said joint pole, so when the adjusting pole is turned, the adjustable base is moved in X direction, this makes the second adjustable platform move in X direction which moves the main fix base plate in X direction and then moves the fixing tool in X direction, as a result, the object in the fixing tool can be moved forward or withdrawn back from the cutting blade.
8. The rotational cutting machine as claimed in claim 1, wherein said third adjustable platform is installed with an adjusting screw, and the end of the adjusting screw has a wheel, on the side of wheel is a handle, by turning the wheel using the handle, the third adjustable platform can move into Y direction, which causes the main fix base plate to be moved in Y direction, and then the fixing tool, as a result, the object can be moved approaching or separating from the cutting blade.
9. The rotational cutting machine as claimed in claim 1, wherein above the second motive power source and fixing tool is a cover, so to protect the second motive power source and the fixing tool.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An optical transmitter comprising:
a first phase locked loop circuit configured to receive a reference clock and remove a jitter component of the reference clock;
a second phase locked loop circuit configured to receive an output of the first phase locked loop circuit, generate a multiplied clock synchronized with the output, and when a frequency of the output deviates from a predetermined range or when an amplitude of the output is smaller than a predetermined value, output an alarm signal; and
an optical transmitting circuit configured to receive the multiplied clock and electrical signals from the outside, and output an optical output signal modulated based on the electrical signals.
2. The optical transmitter according to claim 1, wherein a bandwidth of jitter transfer of the first phase locked loop circuit is narrower than a bandwidth of jitter transfer of the second phase locked loop circuit.
3. The optical transmitter according to claim 1, wherein a response time of the alarm signal of the second phase locked loop circuit is reduced according to widening of the bandwidth of jitter transfer of the second phase locked loop circuit.
4. The optical transmitter according to claim 1, wherein the optical transmitting circuit has a control terminal to shut off the optical output signal, and when receiving the alarm signal through the control terminal, shuts off the optical output signal.
5. An optical transmitter comprising:
a phase locked loop circuit configured to receive a reference clock signal from the outside, generate a first clock signal based on the reference clock signal, output the generated first clock signal, and when a frequency of the reference clock signal deviates from a predetermined range or when an amplitude of the reference clock signal is smaller than a predetermined value, output a first alarm signal;
a frame processing part configured to receive the electrical input signal from the outside and the first clock signal from the phase locked loop circuit, generate a second clock signal synchronized with the electrical input signal, read in data based on the second clock signal from the electrical input signal, output the data based on the first clock signal, and when the first clock signal and the second clock signal are not synchronized with each other, output a second alarm signal;
an optical transmitting circuit configured to output an optical output signal based on the data output from the frame processing part; and
a control circuit configured to, when the first alarm signal or the second alarm signal is received, perform a control to shut off the optical output signal, and then when the first alarm signal or the second alarm signal is recovered, perform a control to reset the phase locked loop circuit and then reset the frame processing part.
6. The optical transmitter according to claim 5, wherein the optical transmitting circuit has a laser diode configured to generate an optical output signal and an optical modulator configured to modulate the optical output signal, and
the control circuit is configured to, when the first alarm signal or the second alarm signal is received, perform a control to shut off a driving current supplied to the laser diode.
7. The optical transmitter according to claim 6, wherein the control circuit performs a control sequentially to shut off the driving current, set a driving signal provided to the laser diode or the optical modulator to a predetermined value for preventing excessive light emission, and switch on the driving current.