What’s the luxmeter for in lighting systems?

Read on to find out and don’t miss the history of our customer Eurogroup S.p.A. that has managed to make more performing maintenance of such plants thanks to this tool.

What is the Luxmeter?

The luxmeter is a portable instrument used for the measurement of brightness, parameter involved in many areas such as environmental lighting, construction, road signs and advertising, safety clothing and horticultural sector, but not only.

It is used both for quality control and maintenance operations and this is well known by our customer Eurogroup S.p.A.

luxmeter

Who is Eurogroup S.p.A.?

Eurogroup S.p.A. operates in the design and construction of electrical and technological systems, telecommunications systems, data networks, security and automation.

Sizes

The company, projected in the national and international panorama, boasts more than 250 employees and a share capital of € 2,500,000.00.

History

In 1966 the company was already very promising.
Born to offer a qualitatively competitive response in the field of electrical plant engineering, it already showed much wider development prospects.
The role now held has been conquered over time.
Thanks to a path of continuous growth, the company went from an artisan dimension to a broader, then projecting it into the national and international landscape and making it become, in 1996, Eurogroup S.p.A.
The company stands out for being constantly engaged in the development of innovative sectors such as Energy Efficiency, Renewable Energy and Building Automation.

Plants maintenance: service

Eurogroup s.p.A operates as part of the renovations and maintenance of plant with the Global Service and Facility Management services and guarantees a 24 hours a day and 7 days a week service.
It is precisely in the field of maintenance that S.A.M.A. Italia S.r.l. play a key role.

Measurement of brightness parameters of systems: the role of the luxmeter

For maintenance, it is essential to measure the brightness parameters of the systems.
Eurogroup S.p.A. has, in fact, purchased from us a luxury meter, with the aim of making their work in the field of public lighting more and more performing.

Eurogroup spa eng

The luxmeter: how the relationship between S.A.M.A. Italia and Delta OHM was born.

Eurogroup S.p.A. has chosen the Delta OHM luxmeter, an instrument used for the measurement of brightness.
It is a parameter involved in many fields such as environmental lighting, construction, road signs and advertising; ideal for quality control and maintenance operations.
Delta OHM is an Italian company specialized in the design, production and calibration of portable, desktop and industrial scientific instruments for the measurement of physical quantities.
The sales network is entrusted to several distributors and S.A.M.A. Italia is an authorized dealers for several years.

 

Delta ohm and Sama Italia srl

 

 

The photo on the left was taken during one of the refresher courses, directly done at their headquarters.
This commitment, linked to the rapid response to customers, has allowed us to create a relationship of mutual esteem and to be selected as retailers for the region Tuscany, Marche, Umbria, Liguria, Abruzzo, Veneto, etc.

Your satisfaction is our goal!

Innovation, the ability to work in teams, investment in training and long-term vision are the key principles that guide Eurogroup S.p.A. towards constant growth.
Every satisfied customer is a source of great pride for us, but it is precisely when we are chosen by large companies with high standards, including Eurogroup S.p.A., that we understand we are on the right track.
S.A.M.A. Italia is a dealer of instruments branded Delta Ohm, such as the above mentioned luxmeter, in addition to being a manufacturer of instruments branded SAMA Tools, all available on our website!

Would you like more information or assistance?

If you are looking for information on a specific model of luxmeter or would like to know more, contact our technical department.
You can call us at 0584/392342 – 0584/392453 or, alternatively, fill in the online form to contact us in writing.

Based on the name “ultrasonic instruments”, it is clear that these are devices that use ultrasound to perform their function. So, to give a good answer to the question “what are ultrasonic instruments?” it is better to start by describing what ultrasound is.

What is ultrasound?

Ultrasound makes reference to the principle of using sound waves at very high frequencies, usually higher than those the humans can hear. This means that ultrasound applies frequencies higher than 20 kilohertz with operating values reaching up to the gigahertz ranges depending on the ultrasonic instrument.
The word ultrasound is commonly heard in the health sector, where ultrasound imaging is commonplace.
Yet, when it comes to the engineering field, ultrasonic instruments are used for different purposes, such as non-destructive testing, measurement and quality control.

Ultrasonic instruments for non-destructive testing

Some ultrasonic instruments are used for non-destructive testing in order to identify and verify mechanical features while keeping the integrity of the part tested.
This type of ultrasonic instruments is especially useful for finished parts or products. They allow you to identify and test aspects such as:

  • Flaws on the surface finish which may not be visible to the eye.
  • Hardness of the material.
  • Pipe fractures that may lead to leakage.
  • Other invisible flaws.

Ultrasonic instruments - saut500

Using ultrasonic instruments for non-destructive testing provides you with a series of advantages, for example:

  • Both internal and external flaws can be detected.
  • Both volumetric and crack like flaws can be detected no matter their orientation
  • Some instruments take the exact same time to test pieces with different thickness.
  • The radiation risk present with the radiography method of testing is eliminated.

Among the most common ultrasonic instruments used for non-destructive testing, we offer:

Reference standards for non-destructive testing

Non-destructive testing is regulated by different standards which determine the verification methods to be applied according to the material, the thickness of the metal, the type of joint, etc.

S.A.M.A. Italia is associated with UNI Ente italiano di Normazione:

Being a Member allows you to participate personally in the definition of the rules, helping to define the rules of your sector of reference rather than subject them.

UNI allows members and not to consult the reference standards at any time, purchasing them online.

Ultrasonic intruments - saut310d-sw

Ultrasonic instruments for measurement

Another group of ultrasonic instruments is formed by those used to measure parameters such as the thickness of a material or a coating with high precision.
This group uses a measuring method called “Ultrasonic Thickness Measurement” or UTM. Therefore, they are usually known as ultrasonic measuring gauges.
Ultrasonic measuring gauges are capable of measuring the thickness by using a probe that generates an ultrasound pulse and sends it through the thickness of the part being measured.
Then, the instrument calculates the thickness by a calculation that considers the time needed for that ultrasound pulse to go through, get reflected by the opposite surface of the piece and return to the probe.
With the values obtained by the instrument, it is possible to identify and verify:

  • Thickness of the material for possible wear.
  • Corrosion on the material.
  • Possibility of splitting material.
  • Accurate coating thickness.

Considered part of the non-destructive testing tools, ultrasonic instruments for measurement offer a variety of benefits, such as:

  • Not damaging the measured sample.
  • Access to both sides of the sample is not required.
  • High precision achieved.
  • Do not require laboratory like conditions to work.
  • These instruments are cheap compared to other alternatives.

Some ultrasonic measurement instruments that you can get with us include:

Watch the video we made on the graphic thickness gauge

Ultrasonic instruments for quality control

Both non-destructive testing and measurements are used to compare results with what is expected. If results match the specifications of the part or the product tested, it can be concluded that the part has the quality desired.
It is then obvious that ultrasonic instruments are an important asset for quality control. Most ultrasonic instruments provide information which is essential for quality assurance, such as:

  • Roughness measure and control.
  • Wall thickness.
  • Coating thickness.
  • Color and gloss differences measure.
  • Hardness of the material.

Therefore, benefits for the quality control department include all the benefits mentioned above, plus the fact that some of these instruments can be applied directly in the production line without the need of taking samples to a laboratory.
Also, all the ultrasonic instruments mentioned above are useful for quality control activities, but we have more. Other instruments we offer and can come in handy for quality control are:

  • Portable surface roughness testers.
  • External probe surface roughness testers.
  • Integrated probe digital coating thickness gauges.
  • External probe digital coating thickness gauges.

And this is just a small list.

ultrasonic instruments sa8825fn

What materials can be tested?

At this point, you should already known what are ultrasonic instruments, how they work and their main applications.
However, it is also important to understand which are the materials that make ultrasonic instruments the right choice.
Fortunately, these instruments work with a wide range of materials, especially if they are high-quality instruments.
For example, our precision ultrasonic thickness gauge – SAUT160 can measure the thickness of ultrasonic conducting materials such as:

  • Steel
  • Cast Iron
  • Aluminum
  • Copper
  • Brass
  • Zinc
  • Quartz Glass
  • Polyethylene
  • PVC
  • Gray Cast Iron
  • Spheroidal Iron

Final thoughts

It is clear that a short and accurate answer for the question “what are ultrasonic instruments?” could be “powerful measuring and testing tools”.

The fact that these instruments are capable of providing essential information to improve the quality of products and processes makes them a must have for any company, that takes their business seriously.

Keep in mind that ultrasonic instruments are not only for quality control, some of them are also very useful on the field to perform maintenance inspections on tanks, metal sheets, pipelines, under pressure containers, bulkheads, and other equipment where corrosion and other defects may be present.

If you are interested in acquiring any of our ultrasonic instruments, or you have any inquiries about these and any other of our products or services, do not hesitate to contact us. We are pleased to help you.

Force Gauge is a measuring instrument used in mechanics to evaluate an applied force. Read on cause we are going to deepen the measurement of the weight force in traction and compression.

Moreover, thanks to G21 s.r.l. we will discover how this measuring instrument is used in a very particular sector, that of bone cements in orthopaedics.

What’s traction?

Traction is the stress to which a body, subject to a system of divergent forces, undergoes.

The principle of tensile breaking strength was discovered by Galileo Galilei and illustrated in the treatise “Discorsi e dimostrazioni matematiche intorno a due nuove scienze del 1638”.

What’s the compression?

In mechanics compression is one of the elementary mechanical stresses together with traction and bending. Compression is the stress to wich a body, subject to a system of convergent forces, undergoes.

Force Gauce for the measure weight force in traction and compression

Digital Force gauges with internal or external load, branded SAMA Tools, are widely employed to measure force in tension and compression and are able to operate over a range of 200.000 N.

These measuring instruments offer sensitivity and precision, are ideal for the most important needs and can be accompanied, on request, by the calibration report or ACCREDIA certified.

Dinamometro

Force Gauge for bone cements

They are widely used in main industrial fields.

Today, we’d like to talk about the force gauge use in the bone cements field.

Bone cements are successfully employed to anchor hip prostheses, knee, shoulder, elbow, etc.

The role of our customer G21 S.r.l.

G21 S.r.l is a Modenese company that produces innovative solutions in the field of biomaterials and procedures for vertebral consolidation and restoration of joint functionality.

Since 2010 it operates according to a Quality System conforming to EN ISO 13485 “Quality Management Systems – requirements for regulatory purposes applicable to Medical Devices”.

G21 has a catalogue of products (including long-term implantable and Class III medical devices) of which it has full know-how and design technology, and
productive. Research and Development are conducted internally and in collaboration with important research institutions and universities at the international level.

The company focuses on high quality raw materials, absolute control of processes and suppliers and compliance with the most stringent international quality standards.

G21 relies mainly on us for the supply and calibration of tools for the control of breaking loads. Low traction forces in play require high precision instrumentation and repeatability, such as our digital Force Gauges.

We’re talking in particular about the SADFGE-P model that is characterized by load cells of such size that they cannot be integrated into the instrument body and sized to the loads they have to bear.

This tool uses a high-performance load cell that provides better accuracy, reducing the bottom-up error.

Do as G21 S.r.l. and get off to a good start with the measuring instruments, branded SAMA Tools!

Would you like more information or assistance?

If you are looking for information about a specific force gauce model, its calibration report or just want to know more, please contact our technical department.

You can call us at 0584/392342 – 0584/392453 or, alternatively, fill in the online form to contact us by email.

How is it possible to be sure that the same object does not present colour differences?
We discover it in this article, read on because today we talk about the main colour measurement instrument: the colorimeter.
You will understand all its features and you can see it in action in the video we made for you.

What is a colorimeter?

Colour difference meter is a device used to measure chromatic differences, which allows performing accurate measurements of differences between all colour types of the same material, according to the international standards.

Objects’ colour

Design colour’s choice is extremely important, even if is quite subjective.

Colours arouse emotions and this particular emotion may differ from person to person.

Studying how colours influence people is a real kind of business.

The simple change of a tone or a saturation is enough to arouse completely different feels.

Moreover even cultural differences should be considered, because what means happiness somewhere, could means sadness in somewhere else.

Our Logo, for instance, RED and BLUE show different meanings between Orient and Occident.

Red:
• Occident: excitement, love, passion
• Orient: wedding dress, joy

Blue:
• Occident (Europe): relaxation, confidence
• Orient: sadness, depression, wedding tradition, prudence

Color perception

What is really important for any producer is to be able to reproduce the chosen colour without facing the risk of visual errors.

Light, object and observer are three essential components in colour perception.

The variation of one of these three components changes inevitably the colour perception.

In the event that light and observer do not change, the object will define the observer’s colour perception.

The object can influence colour perception because his reflective surfaces (transmittance surfaces) modulate the spectrum of the light source.

Each object has several reflectivity surfaces, these one are modified by the light source obtaining various results.

The same observer, but different colours perceived.

The colorimeter help us to measure chromatic differences.

 

Colorimeter

Calibration report for the colour difference meter

An optional service for the colour difference meter is the calibration report.

It is a document edited by metrological laboratories that insures that the test has been made with reference to national acknowledged samples.

The technical worthiness of these documents is based on the laboratory’s qualification, on the operator’s expertise and by the metrological procedures employed.

 

Application fields

Colour meters are able to operate on plastic, metal, printings and painted surfaces.

They are mainly employed to perform quality checks on incoming and outgoing goods.

How the colorimeter works?

The colour meter operating principle bases on the measurement of chromatic aspects of the light that arrives on the surfaces from any source, directly or indirectly.

Suitable for intermediate stages analysis in producing materials such as:

  1. Clothes
  2. Building
  3. Interior design
  4. Plastics
  5. Paints
  6. Facings
  7. Porcelains

 

 

It is a perfect device to be used for field measurement.

 

 

 

 

It is used to check chromatic differences between samples of the same material in a fast and accurate way.

 

Would you like more information or assistance?

If you are looking for further information on a specific color meter model or want to know more, contact our technical department. You can call us at 0584/392342 – 0584/392453 or, alternatively, fill out the form.