itp 409 ch2

What is the term for the process of examining products for quality?

Inspection

What type of inspection involves human operators?

Manual Inspection

Who typically conducts quality inspections?

Quality inspectors

What is a potential drawback of selective inspection?

Can miss defectives

What are the two possible outcomes of lot acceptance?

Acceptance or rejection

What type of inspection is more effective when using machines?

Automated Inspection

What is a characteristic of automated inspection?

More effective using a machine

What is a downside of automated inspection?

Capital-intensive

What is the purpose of automated inspection systems?

To ensure efficient, reliable automated verification of desired parameters of product or package.

What is one benefit of automated inspection systems?

They ensure quality.

How do automated inspection systems contribute to customer satisfaction?

By ensuring the quality of products.

What aspect of business do automated inspection systems help manage?

Perception-brand management.

What regulatory requirement do automated inspection systems help meet?

They help meet regulations.

What does cGMP stand for?

Current Good Manufacturing Practices.

Less reliable inspection systems

-False acceptance/false rejection

-Reduce productivity

-Customer satisfaction

- Perception-brand management

Types of Inspection Systems

Vision systems

• X-ray

• Gamma rays

• Sonar

• Weight

• Metal detection

• Magnetic field

• Thermal imaging

What type of wave are electromagnetic radiations?

Transverse oscillating wave of electric and magnetic field

What is the equation relating energy, Planck's constant, and wavelength for electromagnetic radiation?

E = hc/λ

What is Planck's constant?

6.626 x 10^-34 J s

What is the speed of light?

3 x 10^8 m/s

What do photoelectric sensors measure?

Distance/Position of machine components

What can photoelectric sensors count?

Parts or products

What do photoelectric sensors inspect?

Presence or absence of parts or products

What can photoelectric sensors detect?

Orientation of the objects

What is a type of inspection system that uses cameras and sensors?

Vision systems

What components are typically involved in a vision system?

Light source & light receiver

What happens when there is an interruption of the signal in a vision system?

Change in the control state

What is the outcome for undesired packages in a vision system?

They are diverted from the packaging line

What capability do some vision systems have regarding colors?

They can distinguish between colors or detect colors

How can vision systems enhance inspection processes?

They can be integrated with robots/cobots for efficient inspection

What is presence detection in inspection systems?

It checks if a cap is in place on a bottle.

What does presence detection check regarding bottle caps?

It checks if the cap is not properly mounted.

What does presence detection check on cartons?

It checks for an open flap on a carton.

What type of detection is used for height in inspection systems?

Height detection.

What is integrated with the detection system in inspection systems?

A rejection system.

What is a two-part photoelectric sensor?

It consists of an emitter and a receiver.

What is a retro-reflective photoelectric sensor?

It has an emitter and a receiver that uses a mirror.

What characterizes a diffuse reflective photoelectric sensor?

It monitors the material or package without using a mirror.

What is the detection range of through-beam sensors compared to retroreflective and photo-electric sensors?

Through-beam sensors have a longer detection range.

How many components do through-beam sensors have?

They have two components.

How many cables do through-beam sensors require?

They require two cables.

How many mounts do through-beam sensors have?

They have two mounts.

Are through-beam sensors generally more or less expensive than other types?

They cost more.

Do through-beam sensors take up more or less space than other types?

They take up more space.

Are through-beam sensors ideal for detecting very thin clear objects?

No, they may not be ideal for very thin clear objects.

What is a requirement for diffuse sensors to perform well?

The sensor should be in close proximity.

What is the shortest detection range characteristic of?

Diffuse sensors.

What factors can affect the detection of diffuse sensors?

Shape, size, and color.

What is the purpose of Vision Systems?

To inspect caps and measure the volume of liquid.

What does Vision Systems monitor regarding liquid volume?

It maintains a constant level.

What does Vision Systems check for in labels?

Orientation/position and presence/absence.

What type of sensor is used in Photo eye systems?

A photo eye sensor with a color filter.

What colors does the photo eye sensor accept and reject?

Accepts purple, rejects red or green.

What aspect of labels does the Vision System check?

Label positioning.

What are the two categories of fillers?

Liquid fillers and dry product fillers

What are the two types of liquid fillers?

Constant volume and constant level

What are the types of constant volume liquid fillers?

Piston fillers and diaphragm fillers

What type of liquid filler uses vision systems?

Constant level liquid fillers

What are the three types of dry product fillers?

Volume, mass or weight, and count

Why is delivering the correct amount of product important?

Customer satisfaction

What can be a consequence of overfills for a company?

It may be costly depending on the product

What is Optical Character Verification (OCV)?

A method that verifies overall code as an image.

What is a key advantage of Optical Character Verification (OCV)?

It is simple and fast.

What is a disadvantage of Optical Character Verification (OCV)?

Codes change frequently.

What does Optical Character Recognition (OCR) do?

Reads individual characters.

What is a key disadvantage of Optical Character Recognition (OCR)?

It requires more computational power.

How does the speed of Optical Character Recognition (OCR) compare to Optical Character Verification (OCV)?

OCR is relatively slower.

ocr front

0 vs O , S vs 5, B vs 8

makes it easier to read

One dimensional barcodes:

Universal product code (UPC)

Two-dimensional barcode

qr code

barcode

Helps identify authentic/counterfeit

products

What is a limitation of vision systems in product inspection?

Some products cannot be identified by the vision system.

What type of parts inside bottles can be difficult to identify?

Metal parts inside the bottles.

What potential issue can products packaged in glass bottles have?

They can potentially have glass fragments.

What can X-ray inspection identify in a package?

Areas in the package with different density.

What specific application does X-ray inspection have in meat products?

Bone detection in the meat.

What does X-ray inspection check for in terms of package contents?

Completeness of contents in the package.

What can X-ray inspection detect regarding items in a package?

Missing items.

What type of item issues can X-ray inspection identify?

Misshapen, distorted, or damaged items.

What is a limitation of vision systems in product inspection?

Some products cannot be identified by the vision system.

What type of parts inside bottles can be difficult to identify?

Metal parts inside the bottles.

What potential hazard can products packaged in glass bottles have?

Glass fragments.

What can X-ray inspection identify in a package?

Areas in the package with different density.

What is one application of X-ray inspection in the food industry?

Bone detection in the meat.

What can X-ray inspection determine about the contents of a package?

Completeness of contents in the package.

What can X-ray inspection detect regarding items in a package?

Missing items.

What type of items can X-ray inspection identify as distorted?

Misshapen or damaged items.

What is the second largest user of X-ray inspection systems?

The food industry.

What is a disadvantage of X-ray inspection?

X-ray inspection has a higher initial investment cost.

What is a benefit of X-ray inspection?

X-ray inspection is reliable.

How does X-ray inspection contribute to cost savings?

It reduces product recalls.

What is the general detection capability of foreign particles in X-ray inspection?

Generally machine specific > 0.4 mm.

Which company is mentioned in relation to foreign particle detection?

Bosch.

What is the energy level of gamma rays compared to X-rays?

Gamma rays have energy higher than X-rays.

How much more energetic is each gamma photon compared to X-rays?

Each gamma photon is 10 times more energetic than X-rays.

What can gamma rays penetrate that X-rays cannot?

Gamma rays can penetrate where X-rays cannot reach.

What type of container is needed to shield against gamma rays?

A thick-walled steel container.

Can gamma rays ionize materials?

Yes, gamma rays can ionize the material.

Do gamma rays interact with plastics?

Yes, gamma rays interact with plastics.

What effects do gamma rays have on food?

Gamma rays affect food stability, shelf life, and organoleptic properties.