Question

measurement important terms
learning objectives
after studying this chapter, you will be able to:
● differentiate between the us conventional and si metric measurement systems, and make conversions from one system to the other.
● describe the point - system of type measurement.
● use a line gauge and e gauge to measure point sizes of type.
● identify standard grades of paper and basic paper sizes. measure grades of paper by basis weight, thickness, and brightness.
● eexplain how visual images are produced and measured in a desktop publishing system.
● understand the use of proportional scales, screens, and tint measurements to reproduce images.
define the following terms.
densitometer:
e gauge:
iso series:
line gauge:
pica:
point:
proportional scale:
resolution:
screen angles:
screen tint:

Explanation:

• Densitometer: A device to measure the optical density of a material, often used in printing to assess ink coverage or paper opacity.
• E - gauge: A tool for measuring the point sizes of type in the printing industry.
• ISO series: A set of internationally - standardized paper sizes, such as A4, A3 etc., defined by the International Organization for Standardization.
• line gauge: A tool used to measure the point sizes of type, similar to an E - gauge.
• Pica: A unit of measurement in typography, equal to 12 points.
• Point: A unit of measurement in typography for type size, line spacing, etc.
• proportional scale: A scale used in image reproduction to maintain the correct proportions of an image.
• Resolution: In the context of desktop publishing, it refers to the number of pixels per unit of length (e.g., dots per inch), determining the clarity and detail of an image.
• screen angles: The angles at which halftone screens are set in printing to avoid moiré patterns.
• screen tint: The percentage of an area covered by ink in a printed image, used to create shades of gray or color tints.

Answer:

• Densitometer: A device for measuring optical density.
• E gauge: Tool for measuring type point sizes.
• ISO series: International - standard paper sizes.
• line gauge: Tool for measuring type point sizes.
• Pica: 12 - point unit in typography.
• Point: Typography measurement unit.
• proportional scale: Scale for maintaining image proportions.
• Resolution: Pixels per unit length in an image.
• screen angles: Angles of halftone screens in printing.
• screen tint: Percentage of ink - covered area in a printed image.