Each bodily system made by Ericsson is a chunk of complicated know-how, however all of them have one factor in frequent – all of them must work, it doesn’t matter what the situations.
An antenna deployed in Sweden should stand up to snow, sleet, bitingly chilly winters and lengthy durations of rain and damp climate – that very same antenna deployed in Senegal might want to take care of an annual common temperature of 35 levels and occasional tropical humidity, and each single part has to work as meant, no matter the place it’s positioned.
The method of guaranteeing that every part goes based on plan begins on the Ericsson Take a look at Expertise Middle in Rosenheim, Germany, the place supplies and parts are always being put by means of their paces earlier than being added to completely different prototypes and merchandise, finally ending up in a verified design that’s prepared for manufacturing.
A serious side of testing for antennas is environmental sturdiness, and wind load is likely one of the most vital components in antenna design. Because the antennas are sometimes very uncovered on the high of masts, they want to have the ability to stand robust, even when buffeted by extraordinarily robust winds.
This presents a wide range of challenges – they have to be sturdy, however not so heavy that they want specialised transport, or huge metal buildings to help them.
Each adjustment in form or kind have to be examined to see if it delivers an enchancment on earlier designs, and wind load administration is likely one of the areas that has seen some main developments over time.
Ericsson’s antennas are subjected to intensive testing in wind tunnels, with each minor design adjustment minutely scrutinized to see if it has the required impact. The merchandise are examined from all angles with air flows of various temperature and humidity to see how effectively they cope.
The result’s a wind load knowledge sheet that permits communications service suppliers (CSPs) to make knowledgeable selections primarily based on extremely correct take a look at knowledge.
Teamwork key to testing
Being a part of the testing workforce might be one of the gratifying and rewarding jobs at Ericsson – each day, the highly-skilled members get to provide you with new methods of utilizing state-of-the-art know-how to probe for any weaknesses in supplies or designs.
Led by Christopher Lynch, who’s Head of Verification & Take a look at Methods, the workforce units a excessive benchmark for every part they do – put merely, there might be no compromising on high quality.
“So as to have the ability to take a look at, construct and ship antennas and merchandise with the very best aspirations on high quality, efficiency and know-how, we want to have the ability to take a look at, confirm and show all the necessities of the merchandise,” he says.
Antennas are designed to be each very sturdy, but delicate, items of apparatus and regardless of the checks happening in a lab atmosphere, Christopher and his workforce do their greatest to guarantee that the outcomes are as actual because it will get.
Exams are carried out in actual time and carried out based on the ETSI (European Telecommunications Requirements Institute) 30 019 and IEC60068-2 requirements.
The checks are normally carried out in three phases – Incoming inspection, environmental & electrical checks, and a closing inspection.
Within the incoming and closing phases, the antennas are examined for PIM (passive intermodulation) and scattering parameters (S-Par), and there’s a visible inspection earlier than and after the environmental and electrical sequences to see if there have been any modifications brought on by the checks.
The checks themselves are complete, measuring how the models reply to mechanical parts, temperature, humidity, wind load, sturdiness, water and dirt ingress, daylight and UV rays, salt mist and noxious gases.
Shaken, not stirred
The final step of the method is commonly testing the completed product for transportation to make sure that it arrives at its closing vacation spot in excellent working order.
The merchandise are packaged up and subjected to repetitive shaking to make sure that all of the parts keep in place, even when they must be transported over tough terrain in a truck or van to their closing vacation spot.
Such testing usually reveals alternative ways of packaging and securing supplies for transport, which makes a helpful contribution to decreasing waste.
Outcomes change into the roadmap
Do some parts and merchandise fail the among the checks? Completely – the entire level of lots of the checks is to maintain going as much as and past the purpose of failure, which is commonly at a degree far past what they are going to be uncovered to exterior the lab.
The take a look at outcomes present invaluable suggestions to product designers and engineers, enabling them to make their future creations much more sturdy and offering them with a roadmap of how to take action.
Key to getting there as rapidly as attainable is the involvement of the Ericsson Take a look at Expertise Middle as early as attainable. There’s little level in creating one thing all the way in which to a prototype if a key part is just not match for objective, so involving the take a look at workforce early within the course of ensures that growth groups get helpful early suggestions to maintain them heading in the right direction.
Information drives confidence
The results of the checks isn’t just high-performing sturdy merchandise that may maintain working at a excessive degree all through their life cycle – additionally it is encapsulated in an unlimited quantity of information that CSPs can analyze and use when making funding selections.
The adherence to well-regarded trade testing requirements makes it straightforward to match and distinction completely different options and to see what represents greatest worth for cash by way of each capital and operational expenditure.
In terms of the worth of the work performed by the Ericsson Take a look at Expertise Middle in Bavaria, don’t simply take our phrase for it – put it to the take a look at. Request their outcomes out of your native Ericsson consultant and see for your self how intensive testing is just not a hindrance on the street to success – as a substitute, it’s a very important a part of it.
Ericsson Antenna System
Ericsson Take a look at Expertise Middle