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In a context where the reliability of mechanical systems is essential to ensure the comfort, safety, and efficiency of buildings, predictive maintenance is a strategic lever. At the heart of this approach is vibration analysis, a technology capable of detecting the slightest mechanical anomalies... before a problem even arises.
Thanks to smart sensors and sophisticated interpretation algorithms, it is now possible to monitor the health of electromechanical equipment (pumps, motors, fans, etc.) in real time, anticipate breakdowns, and plan interventions proactively.
In this article, we explain:
A must-read for any property manager looking to optimize operations and extend the life of their technical assets.
Vibration analysis involves measuring and interpreting the vibrations emitted by rotating machines (motors, pumps, fans, compressors). Sensors such as accelerometers are installed on the equipment: they detect vibrations, then software (often aided by AI) compares this data to a “normal profile.” The goal? To identify anomalies (misalignments, imbalances, bearing wear, etc.) before a critical failure occurs. This method is widely recognized as a pillar of predictive maintenance
Vibration analysis begins with the installation of sensors, often piezoelectric or MEMS accelerometers, placed at critical points on the machine (bearings, housings, shafts). These sensors record dynamic vibrations by generating electrical signals proportional to the detected displacements.
The raw data captured is transmitted to a monitoring platform. The software then applies a fast Fourier transform (FFT) to convert the time signal into a frequency spectrum. This allows peaks at specific frequencies (e.g., harmonics of a failing bearing) to be identified.
Once the spectrum has been obtained, artificial intelligence algorithms or threshold-based rules compare this data with healthy operating profiles. If an abnormal peak is detected (e.g., vibration at twice the rotation frequency), the system generates a predictive alert, allowing intervention before a failure occurs.
These sensors use piezoelectric crystals (such as lead zirconate titanate) that generate an electrical signal when deformed by vibration. They are robust, offer a wide bandwidth (typically up to 20 kHz or more), and do not require an external power supply for primary detection. They are most commonly used in industrial predictive maintenance to detect rapid faults such as bearings or imbalances.
Newer and more compact, MEMS sensors operate using capacitive microstructures. They are particularly suitable for IoT applications and large-scale assemblies because they are:
| Characteristics | Piezoelectric | MEMS (capacitive) |
|---|---|---|
| Bandwidth | Very wide (up to 20 kHz+) | More limited (~3–6 kHz) |
| Power Supply | Passive signal, minimal external power supply | Integrated LED and ADC, sometimes autonomous |
| Size / Cost | Larger, more expensive | Small, economical, ideal for IoT |
| Typical Applications | Fast, high-frequency detection | Continuous monitoring, low throughput |
Vibration data is first transformed using FFT (Fast Fourier Transform) to identify problematic frequencies. It is then analyzed by algorithms, sometimes based on artificial intelligence (neural networks, supervised learning) or predefined business rules. These tools automatically detect anomalies and generate early alerts, improving diagnostic reliability.
Modern sensors often have embedded analytics capabilities (edge computing): they can detect abnormal behavior and send only an alert, saving significantly on bandwidth. This configuration is very effective for remote or industrial applications where connectivity is limited.
Many companies market complete solutions that integrate:
For example, TRACTIAN combines IoT sensors and advanced analytics for proactive maintenance.
In a recent study published on ScienceDirect, vibration sensors were installed on a press roll in a paper mill. Data was collected from November 2020 to August 2021, revealing abnormal vibration trends before they caused major mechanical failures. This approach extended the equipment's service life and avoided costly unplanned downtime.
TRACTIAN's “Smart Trac” solution uses wireless sensors that can be installed in less than three minutes, combining vibration and temperature measurements. It automatically collects data, generates diagnostics via AI, and sends alerts to technicians. For example, at Ahlstrom Munksjö, 100 sensors detected faulty bearings caused by poor tightening in time, thus avoiding a production stoppage. Everything is accessible via a mobile app, simplifying remote maintenance.
Reliability Plant presents a case where vibration analysis identified bearing defects, imbalances, and natural frequencies on electric motors. Combined with oil analysis and thermography data, this method enabled problems to be diagnosed before they caused failures, resulting in less downtime and significant savings.
| Technical limitations | Best practices |
|---|---|
| Reference not defined | Initial and regular calibration |
| Poor sensor positioning | Installation on a stable surface and close to bearings |
| High environmental noise | Use of advanced filters and directional sensors |
| Misinterpretation | Technical expertise or AI tools to analyze data |
| Operational variability | Adaptive models based on machine conditions |
| Poorly maintained sensor | Periodic inspection and recalibration |
Vibration analysis now offers a powerful predictive maintenance method for electromechanical equipment. By combining sensors, scientific analysis, and real-time data, it makes it possible to:
Predictive Maintenance with Vibration Sensors
TE Connectivity
https://www.te.com/content/dam/te-com/documents/sensors/global/vibration-condition-monitoring-whitepaper.pdf
Understanding Accelerometer Vibration Sensors: Piezoelectric vs MEMS
Sensata Technologies
https://www.sensata.com/sites/default/files/a/sensata-understanding-accelerometer-vibration-part2-whitepaper.pdf
Why MEMS Accelerometers Are Becoming the Designer’s Best Choice in CBM Apps
Analog Devices
https://www.analog.com/en/resources/technical-articles/why-mems-accelerometers-are-best-choice-for-cbm-apps.html
Rapidly Deploy Sensors for IIoT-Based Predictive Maintenance Using MEMS Accelerometers
Art Pini, DigiKey
https://www.digikey.com/en/articles/rapidly-deploy-sensors-iiot-based-predictive-maintenance-mems-accelerometers
Vibration Sensor: What It Is, How It Works, and Applications
TRACTIAN
https://tractian.com/en/blog/vibration-sensor-predictive-maintenance
Real-Time Vibration Monitoring: Use Cases and ROI
TRACTIAN
https://tractian.com/en/blog/vibration-analysis-complete-guide
A Review on Vibration Monitoring Techniques for Predictive Maintenance
Ibrahim Al-Amin et al., MDPI – Journal of Vibration and Acoustics, 2023
https://www.mdpi.com/2673-4117/4/3/102
How to Implement Predictive Maintenance Using Vibration Sensors
Monitran Ltd.
https://www.monitran.com/news/entryid/34/how-to-implement-predictive-maintenance-using-vibration-sensors
Behind every well-managed building is a well-oiled machine. For over 25 years, av-tech, a specialized division of globatech, has been supporting property managers in the operation, maintenance, and optimization of electromechanical systems. With provincial coverage and unique multi-service capabilities, av-tech offers an integrated, people-focused, and efficient approach for all critical environments.
av-tech takes care of all the systems essential to the smooth running of your buildings:
Our services are designed for a variety of sectors, including hospitals, long-term care facilities, airports, industrial and commercial sites.
av-tech does not limit itself to corrective maintenance. The company offers a comprehensive range of technical services tailored to the most demanding operational needs:
Its approach is simple but powerful: to offer a maximum of services from a single point of contact, anywhere in Quebec.
At av-tech, every technician is rigorously trained and certified to work in high-responsibility environments such as hospitals, long-term care facilities, airports, office buildings, and heavy industry.
Human expertise is at the heart of av-tech's quality promise.
av-tech's reputation extends beyond the province's borders. A recent example is a specialized intervention at the CN Tower in Toronto for the maintenance of hydraulic bollards, on the direct recommendation of the manufacturer. This is proof of the trust placed in the team, even in high-visibility contexts.
Other notable projects include contracts with major institutions such as the NRC, the Canadian Space Agency, and detention centers, demonstrating av-tech's versatility and attention to detail.
What sets av-tech apart? A corporate culture rooted in proximity and respect. Managers, supervisors, and technicians share the same commitment: to provide reliable, responsive, and people-oriented service, no matter how complex the assignment.
And thanks to its integration into the globatech group, av-tech collaborates with experts in access control, security, concierge services, and smart parking. This is a real strength when it comes to offering cross-functional and consistent technical solutions.
⭐ Why choose av-tech?
For property managers looking for a reliable, versatile and structured partner, av-tech is a safe bet:
🔗 Need a partner to extend the life of your electromechanical equipment?
Trust a team that understands your challenges in the field—and knows how to respond, 24/7.
Regular maintenance and a few simple adjustments can significantly increase the life of your air conditioner. Here are the essential steps to follow:
Dirty filters block airflow, forcing the system to work harder and reducing its efficiency. It is recommended that you check the filters every month and replace or clean them every 1 to 3 months, depending on usage and the presence of pets.
The outdoor unit can accumulate debris such as leaves, dust, and grass, which impedes airflow. Be sure to clean around the unit regularly and keep a clear space of at least two feet all around it.
Having your system inspected by a professional at least once a year can detect and correct potential problems before they become major issues. Professional maintenance typically includes cleaning the coils, checking the refrigerant level, and inspecting the electrical components.
A programmable thermostat can automatically adjust the temperature based on your schedule, reducing the load on your air conditioning system and saving energy.
A well-insulated home stays cooler, reducing the need to run the air conditioner continuously. Check the insulation in your attic, walls, and windows to minimize cool air loss.
Clean air ducts ensure better air circulation and reduce the load on your system. It is advisable to have your ducts cleaned every 3 to 5 years, or more frequently if you have allergies or pets.
Make sure that furniture or curtains are not blocking air vents. Obstructed airflow can cause the system to overheat and wear out prematurely.
Shading the outdoor unit can improve its efficiency by reducing the ambient temperature around the unit. Use plants or structures to provide shade without obstructing airflow.
An incorrect refrigerant level can reduce the efficiency of your system and damage the compressor. If you notice a drop in performance, have the refrigerant levels checked by a professional.
Ceiling or portable fans can help distribute cool air more evenly, allowing your air conditioning system to run more efficiently and reduce energy consumption.
By incorporating these simple steps into your maintenance routine, you can extend the life of your air conditioning system, improve its efficiency, and save energy. Regular maintenance is essential to ensure optimal comfort during the hot months and avoid costly repairs in the long run.
At globatech, some career paths illustrate technical passion, human commitment, and the ability to evolve. This is the case for Sylvain Maillé, now service manager for the access department in Montreal at av-tech. He is a leader in the field who has never lost his taste for human contact.
Trained as an electrical engineer, Sylvain explored different options before finding his calling. After a year in Europe and a vocational diploma, he did his internship at av-tech... and stayed. For seven years, he was a technician on the road, covering all of Quebec and exploring a variety of fields, from gas detection to camera and barrier repair.
His career path: technician → service manager → access department development
“The technical and human challenge is what has always motivated me. I love understanding customers' needs and finding solutions.”
Over the years, Sylvain has been involved in several major projects, some of which have become landmarks in globatech's history:
“When a customer comes back after a bad experience elsewhere and stays, it's a victory.”
The parking barrier and access control systems sector is highly specialized. According to Sylvain, globatech clearly stands out from the competition and is a leader in Quebec. For him, it's simple: he considers globatech to be the best barrier company in Quebec, which makes him even prouder to be part of it.
What strikes Sylvain the most is the family atmosphere and solidarity that reigns within the teams. These bonds go beyond the professional sphere.
"Those who leave say it themselves: it's rare to find such camaraderie elsewhere. That's what makes it special."
He fondly recalls skiing with colleagues, Christmas parties with his children, and even meeting his wife—a relationship that began while working together at a hospital site.
A recent challenge or key project in Toronto
Thanks to the Ottawa team's solid reputation for repairing bollards, particularly those at Parliament, the manufacturer recommended their services to a customer facing a similar problem at the CN Tower. Jeeven first went to the site to carry out the location and make a precise diagnosis. Based on this assessment, Pat and Sylvain were able to prepare a detailed proposal, which was quickly accepted by the customer.
The result: the bollards on the CN Tower are back in full working order, just in time for the start of the high tourist season!
A fine demonstration of trust and expertise that extends well beyond Ontario's borders.
For Sylvain, the future of globatech lies in balanced growth, without ever losing the human touch that is its strength. He actively supports development in Toronto, with the hiring of a local technician, and works closely with Ottawa Security Systems to build a real bridge between the regions. The potential, he believes, is immense — “you just have to believe in it and go for it.”
A reliable ventilation system is essential for ensuring good air quality in a building. Over time, a ventilation system (CMV, ducts, fans) can wear out or become clogged, compromising its efficiency. It is crucial to know how to spot the signs of wear and tear in a ventilation system so that action can be taken before it breaks down.
Building managers and occupants should be alert to several signs that may indicate a ventilation problem:
When one or more of these signs are noticed, it is time to have the ventilation system checked by a professional. Often, simply cleaning the ducts or replacing a part (fan motor, clogged filter) will give the installation a new lease of life. Not waiting for a complete breakdown avoids prolonged system downtime and higher repair costs. Regular maintenance of your ventilation system (for example, annual maintenance for a dual-flow CMV) ensures healthy air for occupants while extending the life of the equipment.
Sources:
On December 17, it was the long-awaited event: our traditional Christmas Party in Quebec City, after an absence of two years, made a brilliant comeback at Espace Artevino, in an atmosphere worthy of a red carpet.
This themed evening transported our guests into a glamorous and festive universe. A "photo booth" captured precious moments, while the cocktail dinatoire and gourmet plates awakened everyone's taste buds.
Wine and cocktails, casino and gaming table activities offered a playful touch to the evening, creating unique moments of entertainment for our guests. And of course, several door prizes delighted our lucky guests.
🎶 A special mention to our incredible DJ, who set the dance floor alight and had the Espace Artevino vibrating to the rhythm of his mesmerizing mixes.
A huge thank you to our Quebec City Social Club for their impeccable organization of this memorable evening. 🥂 Your dedication and creativity were the keys to this resounding success.
On Thursday, October 12, 2023, the traditional Oktoberfest party took globatech by storm, creating a memorable evening for our valued employees. The event kicked off at 5pm, offering a well-deserved escape after a busy day at work.
It was an evening that celebrated friendship and conviviality with an abundance of cold beers, delicious sausages and a festive atmosphere. Our employees had the opportunity to relax, laugh and share unforgettable moments over a mug of beer and a plate of sausages.
The globatech Oktoberfest was an internal event, designed specifically to thank our employees for their dedication and hard work. It was an opportunity to strengthen bonds within our team, create warm memories and celebrate the success of our company.
Upbeat music set the pace for the evening, encouraging everyone to get up and dance. The laughter and lively conversation created an atmosphere of camaraderie that will last well beyond the evening.
We would like to thank all our employees for their participation in this special evening. Your energy and enthusiasm made this Oktoberfest an unforgettable event. We're proud of our dynamic team and look forward to many more memorable moments together.
Stay tuned for more exciting events to come at globatech. We are committed to cultivating a positive corporate culture, focused on employee well-being, success and celebration.
