Dot peen marking works by electromechanically striking a carbide or diamond stylus assembly against the surface of a part to be marked.For example,dog tag engraver.The result is a succession of dots to create digits, text, logos, and 2D data matrix codes. Each such dot is the result of a pulsed current that runs through a solenoid, punches a magnet toward the surface, and subsequently returns the stylus to its starting position, awaiting the next pulse. Because each pulse occurs in only a fraction of a second, an entire 2D data matrix code, for example, can be completed in seconds (depending on the size).
Compressed air is not required.
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The inductive displacement sensor measures the distance between the sensor head and the target based on the changed oscillation state.
Miharu Inductive Displacement Sensor utilizes two variants of this operating principle.
The eddy3100 series is closer to the sensor head as a target, and the oscillation amplitude and phase difference become smaller from the reference waveform. By detecting the amplitude and phase of the change, the sensor can get a proportional change in the value about the distance between the sensor head and the target.
The amplitude and phase changes and distances are based on the target material. The values ​​are digitized and corrected using a high-precision linearization circuit. The linear output is proportional to the distance between the sensor head and the target.
The eddy3010 series acts as a sensor for the target's approach, with smaller increases in eddy current and oscillation amplitude. The amplitude is rectified and the amplitude change is converted into a change in the DC voltage. With its linearization circuit, the output voltage-distance characteristic is corrected in the EX-200 series to optimize linearity.
Notable Characteristics:
Cost effective
Requires no consumables
High speed accuracy
Will mark any material (including hardened steel)
Eddy current sensor principle and interference prevention method
Induction (eddy current) displacement principle of operation The inductive displacement sensor utilizes a high-frequency magnetic field generated by passing a high-frequency current through the sensor head coil. When a metal target is present in a magnetic field, the magnetic flux path caused by eddy currents perpendicular to electromagnetic induction flows over the surface of the target. This changes the impedance of the sensor head coil.