Capacitive MEMS accelerometer for condition monitoring

Capacitive MEMS accelerometer for condition monitoring

1. Introduction

 

Predictive maintenance (PdM) is a key component of the smart industry that involves monitoring equipment during operation to detect early warning signs of potential failures. PdM is largely based on condition monitoring (CM) through the analysis of vibration, which is the most common method to detect imbalance, misalignment, and other anomalies in machinery. Traditional vibration sensing instruments are based on piezoelectric technology, but capacitive MEMS technology is gaining popularity in this field for various reasons involving flexibility and cost, and the fact that MEMS sensors are closing the gap to piezoelectric sensors in terms of bandwidth and dynamic range. This paper describes the signal processing technique used during standard equipment operation to extract many of the parameters used for diagnosis and PdM, directly from an accelerometer integrated into a smart node. We also include a comparison between a triaxial digital ST capacitive MEMS sensor accelerometer (IIS2DH) and a conventional triaxial piezoelectric accelerometer.

 

2. Why use MEMS sensors instead of piezoelectric sensors?

 

Traditional vibration sensing instruments are based on piezoelectric technology, but capacitive MEMS technology is gaining popularity in this field for various reasons:

 

  • fast recovery after high shock,
  • frequency response includes DC and is stable over time,
  • good stability over time and across temperatures,
  • digital output: easy wiring and no need for external ADC or other signal conditioning circuits,
  • integrated self-test,
  • embedded functionality,
  • low power, small size, low weight,
  • cost-effective.

Read it more

Browse our Suppliers and their Products & Services

Products & Services

more products or services
International Armored Group, Guardian Armored Personnel Carrier
International Armored Group, Guardian Armored Personnel Carrier

The IAG Guardian is an armored personnel carrier that provides a high level of ballistic and blast resistance, superior handling and off-road capability and commercial part compatibility resulting in low maintenance costs.

Data Acquisition (DAQ) Systems
Data Acquisition (DAQ) Systems

Advanced Testing Solution for Propulsion Engine Systems.

Allsalt Shoxs Suspension Seating
Allsalt Shoxs Suspension Seating

Military / Professional Shock Mitigating Solutions.

Auto-Lok Double Slotted Nut
Auto-Lok Double Slotted Nut

Auto-Lok nuts delivers in the global marketplace.

IEC INFRARED SYSTEMS LLC, Lycan™ Counter-UAS
IEC INFRARED SYSTEMS LLC, Lycan™ Counter-UAS

Lycan is a turnkey system to find, track, and defeat Unmanned Aerial Systems (UAS or “drones”) used by potential adversaries to surveil, target, and even attack government, military, and commercial sites.

Etion Create, SN9202 SOLIDnet™ Gateway
Etion Create, SN9202 SOLIDnet™ Gateway

The SOLIDnet™ products form part of the SOLIDGaurd range of security appliances and provide for secure communication of Virtual Private Networks (VPN) over public network infrastructures using IPsec.

Infiniti Electro Optics, VEGA Ultra Long-Range Multi-Sensor PTZ Camera System
Infiniti Electro Optics, VEGA Ultra Long-Range Multi-Sensor PTZ Camera System

The Vega is a fully customizable multi-sensor EO-IR PTZ camera boasting our longest range visible day/night zoom camera and our most advanced cooled or uncooled thermal infrared cameras.

CDMA Transceiver
CDMA Transceiver

The CDMA Transceiver gives software solution for establishing telemetry and video link between two distant points.

International Armored Group, Armored Pick Ups
International Armored Group, Armored Pick Ups

Toyota Hilux, Toyota Land Cruiser 79, Ford F-350, Isuzu D-MAX, Chevrolet Silverado.

Hufschmied Zerspanungssysteme GmbH, Graphite
Hufschmied Zerspanungssysteme GmbH, Graphite

Graphite has become particularly important as a raw material for the manufacture of electrodes.

Poweration Inc., DC/AC Inverters
Poweration Inc., DC/AC Inverters

It is designed to be compatible with shock, vibration, temperature, EMC/EMI and input line electrical fluctuations in demanding Military Standards.

Mahindra Emirates Vehicle Armouring

Mahindra emirates vehicle armouring (MEVA, Mahindra Armoured) is a world’s leading armoured vehicle manufacturer experienced in building high quality up armoured vehicles and tactical armoured vehicles.

BLÜCHER GMBH

The solutions developed by Blücher are protected with over 350 patents and find use in different protective clothes of SARATOGA® for military, civil defence, fire brigades, police forces and international organisations worldwide.

FIXAR-AERO LLC

FIXAR is a leading software and aircraft developer, powering commercial autonomous UAVs for industrial applications.

Precitex Equipments & Pvt Ltd

PRECITEX was established in the year 1996 to manufacture precision gear metering pumps for variety of applications.

Advance Die-Casting Industry Co., Ltd.

Advance Die-casting Industry Co., Ltd. is an Aluminum/Zinc Die-casting and Gravity casting maker for automotive, electronics, industrial parts and many others. We have more than 19 years of experience and know-how from Thailand and Taiwan.

Chemtron Pte Ltd.

We carry a complete portfolio of solutions that is making rapid head way into various industries such as manufacturing, medical, jewellery, aerospace and dental markets.

Thermobile Industries B.V.

THERMOBILE PROVIDES MOBILE, ROBUST HEATERS AND COOLING UNITS TO OPERATE IN THE HARSH CONDITIONS OFTEN FOUND IN MILITARY ENVIRONMENTS.

Bangaree Infotech Solutions
in Media

Bangaree Infotech Solutions is India’s leading SEO Company in Ludhiana and provides the finest Digital Marketing services in Ludhiana.

Download our app to your mobile phone