Carbonization
If the base material containing the "additive" continuously receives high energy, the increased laser-beam absorptivity causes carbonization of the surrounding polymer, resulting in a black coloring. Carbonization does not occur in a base material without an additive.
The "additives" are generally called "coloring agents", but they can be considered to be "pigments" having high laser-beam absorptivity.
Check digit
A digit is included within a symbol whose value is used to perform a mathematical check that ensures the accuracy of the read. It is placed immediately after the barcode data.
Chemical change
Every "pigment" added to the base material contains metal ions.
The application of the laser changes the crystal structure of the metal ions and the amount of hydration in the crystal. This causes a chemical change in the composition of the pigment component, resulting in a concentration of the pigment and a change in color.
Clean System
Adhered particles (foreign matters and dust) cause "defective products" or the "breakdown of devices", etc. on production sites. Although these problems can be solved if production is carried out in a clean room, this incurs considerable initial and running costs, hence attracting the interest in the enclosed clean space system.
CODE128
CODE128 is a barcode developed by Computer Identics in the United States
in 1981.
CODE128 can express all 128 ASCII code characters (numbers,
upper/lower case alphabets, symbols, and control codes) with a barcode. Since all characters
input from computer keyboards (except for kanji, hiragana, and katakana) can be expressed,
it is a barcode highly compatible with computers.
CODE39
CODE39 is a barcode developed by Intermec in 1975. It is a symbol in which a total of 43 alphanumeric characters and symbols are coded.
Since CODE 39 can express alphabets, it is considered to be indispensable for industrial applications. It is widely used for factory automation in the automotive, electric, and electronic industries. In Japan, EIAJ (Electronic Industries Association of Japan) is proceeding on the standardization of the code.
Common Mode Rejection Ratio
The ratio of the noise voltage in the common mode signals which can be rejected, to the noise voltage displayed in the normal mode signals.
20log (Noise voltage in normal mode signals/ Noise voltage in common mode signals)
Compensation Lead Wire
A low-cost electric wire which has almost equivalent characteristics to a thermocouple wire. It is generally used to extend the connection of a thermocouple.
Condensation
When an "additive" absorbs the energy of the laser, its molecule density increases due to the heat to cause condensation, and the plastic turns darker.
The "additives" are generally called "coloring agents", but they can be considered to be "pigments" having high laser-beam absorptivity.
Corona Discharge
The corona discharge is a discharge phenomenon observed when high voltage is applied to pointed conductive objects like a needle. When the corona discharge occurs, the discharged electrons generate atmospheric ions around the tip of the needle by colliding with molecules in the air with great force. The corona discharge method static eliminator was developed to eliminate static by exploiting this phenomenon.
Counting speed
"Maximum number of countable cycles per second.
(Example) 50 kc/s: Counts 50,000 cycles per second."
CSV
Abbreviation for "Comma Separated Value". It is a data format which separates text-formatted data with commas (,). It is used to load data into spreadsheet software such as Excel® or analysis software.
Cutoff Frequency
Frequency at which amplitude attenuates by 3 dB due to the filter.
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