How do Conventional Basis Weight Gauging Work?


Basis weight gauging can meet stringent customer specifications and guarantee the performance of your materials while minimizing raw material waste. Thermo Scientific web thickness and basis weight gauges provide efficient production of uniform, reliable, functional products. Manufacturers usually offer a wide range of online, non-contact basis weight or thickness measurement gauges for flat-sheet applications in the plastics, converting, rubber, lithium-ion battery, building products and textiles industries that meet the tightest specifications in the most challenging measurement environments.

Efficient, cost-effective manufacturing
Produce quality products while improving output and efficiency. Manufacturers can  offer a portfolio of online, non-contact measurement solutions for flat sheet applications in the extruded plastic, packaging film, coating, rubber, lithium-ion battery, building products and textile industries that meet the tightest specifications in the most challenging measurement environments. Thermo Scientific thickness and basis weight measurement and control systems provide efficient production of uniform, reliable, functional products for a variety of applications. Our portfolio of products include powerful control platforms, intelligent sensors for accurate measurement using advanced technologies such as infrared, nuclear, x-ray, terahertz and laser, and robust scanning frames in various configurations built for reliability and versatility.

A gauge uses the attenuation of beta particles to measure the thickness or weight of various materials, such as plastics, paper, and metal. ATI’s gauges can be used for measuring coat weight, basis weight , thickness, and detection. ATI’s gauges can provide measurements from a basis weight range of 1 gsm to 8,500 gsm with the fastest response time.

Why do basis weight gauging have noise in their measurement?
A basis gauge consists of two basic components - a source of radiation, and a radiation detector. The web to be measured is placed between the source and detector. In addition, some sort of computer is used to process the information from the detector, and convert it into a measurement. The illustration below shows the basic setup.

When they strike material, some of them will pass through, while others will be stopped. The thicker (or more dense) the material, the greater the chance a particle will be stopped. By measuring the ratio of the number of particles that pass through the material to the number without any material, the thickness (or weight) of the material can be determined.

Conventional basis weight gauging use an ionization chamber to detect the beta particles. This is essentially a can, filled with an inert gas such as argon. The body of the can is connected to a high voltage (around 500V), and an electrode in the can is connected to a sensitive amplifier. Beta particles entering the can ionize gas atoms, the freed electrons are attracted to the electrode, and the extremely weak current (typically several nanoamperes at most) is amplified, and converted to a voltage, proportional to the number of beta particles entering the detector. The voltage is an analog signal and does not provide a real time measurement. The measurement contains a percentage of the previous measurement.



Comments

Post a Comment

Popular posts from this blog

How Coat Weight Measurement Should Be Tested

Improving quality even though decreasing fees is actually a never-ending aim shared by modest businesses, and by substantial organizations. Because practically all the things that we’re surrounded by features a coat weight measurement where it stands to explain the tightening tolerances by utilizing coating thickness measurement technologies. This can be accurate for in-house plating and painting applications, companies that execute incoming inspection of goods from suppliers, and third-party inspection firms and consultants. A reduction in charges also can take spot by streamlining the time and work it requires to evaluate the measurements and make adjustments for the approach. Much less administrative time equates to a lot more time fine tuning. As a way to strengthen quality and lessen fees, it is actually significant to possess a functioning expertise from the test approaches associated to coat weight measurement plus the instruments accessible for each widespread and complicat...
Read more

Basis Weight Gauging on Grade Paper Substance

The weight (in pounds) of a ream (500 sheets) of paper reduce towards the simple size for any distinct grade of paper. The fundamental size of book paper is 25 x 38. If 500 sheets weighs 70 pounds, then the basis weight is 70 pounds. Paper is frequently identified applying basis weight: 20-pound bond paper, 80-pound coated paper, and so on. Size-and-weight tables, nonetheless, regularly give basis weight per thousand sheets. As an example, a 25 x 38 70-pound book paper may very well be listed as "25 x 38-140M." The "M" signifies one particular thousand sheets, so to make use of the extra traditional basis weight notation, the 140 need to be halved, and it's then discovered that the basis weight (per 500 sheets) is 70 pounds. The fundamental size isn't exactly the same for all paper grades. Paperboards are normally signified as pounds per 1,000 square feet for basis weight gauging . Basis weight gauging is sometimes named substance, or substance quanti...
Read more

Terahertz Measurement Radiation in Research of Electro-Magnetic Waves

Terahertz measurement radiation falls in in between infrared radiation and microwave radiation inside the electromagnetic spectrum, and it shares some properties with every single of those. Like infrared and microwave radiation, terahertz radiation travels inside a line of sight and is non-ionizing. Like microwave radiation, terahertz radiation can penetrate a wide selection of non-conducting components. Terahertz radiation can pass by means of clothes, paper, cardboard, wood, masonry, plastic and ceramics. The penetration depth is commonly much less than that of microwave radiation. Terahertz radiation has restricted penetration by way of fog and clouds and cannot penetrate liquid water or metal. Terahertz radiation is just not ionizing but can penetrate some distance by way of physique tissue, so it's of interest as a replacement for healthcare X-rays. As a consequence of its longer wavelength, pictures produced employing terahertz waves have reduce resolution than X-rays and h...
Read more