Advantages and Disadvantages of Wired Piezoelectric Vibration‑Monitoring Solution

1. High Data Real‑time Performance

Wired sensors connect directly to edge‑computing acquisition units. Vibration signals flow continuously into the acquisition system without wireless transmission links.

Therefore, it is especially suitable for:

• Real‑time vibration monitoring

• Transient shock capture

• Alarm triggering

• FFT analysis

• Bearing fault diagnosis

For example, when an abnormal shock suddenly occurs on a pump bearing, the wired IEPE system can acquire raw waveforms directly, rather than merely obtaining RMS values updated every few seconds.

2. Complete Raw Vibration Waveform Transmission

This constitutes a critical advantage of the wired solution.

Wired IEPE workflow: Sensor → Acquisition Unit → Raw Waveform → FFT / Envelope / Time‑domain Analysis

The acquisition unit can fully store:

• Time‑domain waveform

• FFT spectrum

• Envelope spectrum

• PSD (Power Spectral Density)

• Kurtosis

• Peak value

• RMS

• Bearing characteristic frequencies

Hence, the system can not only judge that “vibration magnitude increases”, but further analyze why vibration increases.

3. Superior High‑frequency Response and Dynamic Performance

Piezoelectric IEPE acceleration sensors are well‑suited for mechanical vibration and shock measurement.

Early‑stage bearing faults of pumps frequently manifest as high‑frequency shocks: Rolling element → Local defect on outer race → Periodic shock generation → High‑frequency vibration.

IEPE sensors deliver markedly better response to such dynamic changes compared with wireless MEMS solutions optimized primarily for low‑power trend monitoring.

Accordingly, wired IEPE offers distinct advantages for early‑stage bearing fault diagnosis

4. Free of Wireless Packet Loss and Interference Issues

Industrial sites commonly contain interference sources including:

• Frequency converters

• Electric motors

• High‑power switching equipment

• PLCs

• Wireless devices

• Metallic equipment structures

• Large‑size pipelines

• Cable trays

Wired transmission operates independent of LoRa wireless links. It avoids problems related to wireless communication distance, signal obstruction, channel interference and wireless data retransmission. For critical equipment, the data link provides higher determinism.

5. Stable Power Supply, No Frequent Battery Replacement Required

IEPE sensors receive constant‑current excitation power supplied by the acquisition unit.

Workflow: Sensor → Long‑term power supply → Continuous long‑term data acquisition

There is no need to address typical drawbacks of wireless MEMS nodes:

• Battery capacity constraints

• Limited battery service life

• Battery performance degradation under low‑temperature conditions

• Periodic battery replacement

• Sleep‑wake‑up control strategies

This benefit is particularly important for sensors installed inside pump houses, underground spaces, enclosed equipment or elevated locations.

6. Support for High Sampling Rates

For wired IEPE systems, sampling rates can be selected according to monitoring purposes: 12.8 kHz / 25.6 kHz / 51.2 kHz / 102.4 kHz / 128 kHz, etc.

Higher sampling rates preserve richer high‑frequency vibration information.

• For low‑speed trend monitoring: focus may lie within 10 ~ 1000 Hz.

• For bearing fault diagnosis: frequency ranges of several kHz or even above ten kHz may be required.

Under such circumstances, the strengths of wired IEPE become prominent.

7. Ideal for Continuous Online Monitoring

For pumps running 24 hours × 365 days per year, wired IEPE sensors can operate persistently.

True continuous online vibration monitoring can be achieved.

8. Core Value of Wired Solutions: Focus Lies in Monitoring Depth, Not “Wired vs Wireless”

Simple comparative overview:

Summary

The wired piezoelectric vibration‑monitoring solution delivers high real‑time performance, complete dataset, outstanding high‑frequency response, wide dynamic range, strong anti‑interference capability and zero battery‑maintenance workload. It continuously acquires raw equipment vibration signals for further FFT, envelope analysis and fault‑feature extraction. Therefore, it is particularly applicable for continuous online monitoring and early‑fault diagnosis of key rotating machinery such as pumps, motors and bearings.

Yangzhou Xiyuan Electronic Technology Co.,Ltd.

#77 Yeqiao Road, Liandong U Valley slender West Lake Innovation port, building 10-2,Hanjiang District, Yangzhou,Jiangsu,China

Mobie Phone: +86 180-5105-8377

Tel: +86 514-82885589

Whatsapp:+86 182-6066-6867

Email: sale1@yzxyt.com

Fax: +86 514-82885089