KH1918C Automatic True RMS AC Digital Microvoltmeter Usage Guide
The KH1918C instrument is a fully automatic wide range, high sensitivity true RMS AC digital voltmeter. It also has a frequency measurement function. The measured voltage and frequency are displayed on the LCD. The measurement accuracy and resolution are high. One characteristic. The measurement frequency range is 10 Hz to 2 MHz, and the voltage measurement range is 300 µV to 300V. In order to facilitate calibration and user habits, a manual range change function is also set. The instrument overcomes the shortcomings of the measurement error of the lower limit of the sensitivity of the general AC millivoltmeter. It uses a high-precision true effective value detector to measure the square wave, pulse, and sawtooth wave signals with crest factor ≤5 Accuracy, which is unmatched by the average detection method table. According to user requirements, an IEEE-488 interface can be added to combine with a variety of instruments to form an automatic measurement system.
Mascara is used to darken, lengthen, thicken, or draw attention to the eyelashes. It is available in natural colors such as brown and black, but also comes in bolder colors such as blue, pink, or purple. Some mascaras also include glitter flecks. There are many different formulas, including waterproof versions for those prone to allerqies or sudden tears. It is often used after an eyelash curler and mascara primer. Many mascaras now have certain components intended.
Makeup was considered unsightly and uncouth in Western culture until the Victorian era. During the Victorian era, social opinion shifted radically towards the promotion of cosmetics, and women were known to spend a majority of their day occupied with beauty regimens. Great efforts were made to create the illusion of long, dark eyelashes.Attempting this, Victorian women made a type of mascara in their own homes.They would heat a mixture of ash or lampblack and elderberry juice on a plate and apply the heated mixture to their eyelashes.
The product that people would recognize as mascara today did not develop until the nineteenth century. A chemist named developed a cosmetic using the newly invented petroleum jelly. The name Rimmel became synonymous with the substance and still translates to [mascara" in the Portuguese, Spanish, Greek, Turkish, Romanian, and Persian languages today.
Mascara
Waterproof Mascara, Non-Smudge Mascara, Lengthening Mascara, Thickening Mascara, Volumizing Mascara, Curling Mascara
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