LDT0-028K Piezoelectric Thin Film Vibration Sensor | DIY

LDT0-028K Piezoelectric Thin Film Vibration Sensor

The LDT0-028K Piezoelectric Thin Film Vibration Sensor is a compact, highly flexible detector engineered for scientific instrumentation, DIY electronics, and industrial applications. Built with a 28 µm piezoelectric film and screen-printed silver paste electrodes laminated onto a 0.125 mm polyester substrate, this sensor converts mechanical vibration and deformation into measurable electrical output — making it an indispensable component for engineers, makers, and researchers alike.

How It Works

When subjected to an external force in the vertical direction, the piezoelectric film generates high strain and a corresponding high-voltage output. Operating in a cantilever beam structure (LDTM-028K mode), one end is fixed with a mass block while the other provides signal output, delivering high sensitivity at low frequencies. The sensor can directly trigger MOSFET and CMOS circuits, making it ideal for low-power wake-up switches and flexible switching applications.

Key Features

• ✅ Flexible 28 µm piezoelectric film for accurate vibration and deformation detection
• ✅ Screen-printed silver paste electrodes on a durable 0.125 mm polyester substrate
• ✅ Welding terminal connections for secure, reliable integration
• ✅ Integrated mass block for tunable resonant frequency and sensitivity
• ✅ Excellent impact resistance for demanding environments
• ✅ Wide operating temperature range: 0°C to 85°C (up to 125°C for high-temperature variants)
• ✅ Storage temperature: -40°C to 85°C
• ✅ Directly compatible with MOSFET and CMOS circuit triggers

Technical Specifications

Applications

• 🔧 Washing machine vibration monitoring
• 🔧 Low-power wake-up switches
• 🔧 Automobile alarm systems
• 🔧 Security and intrusion detection systems
• 🔧 DIY accelerometer and vibration sensor projects
• 🔧 Scientific instrumentation and research
• 🔧 Industrial condition monitoring

What's in the Box

• 1 × LDT0-028K-C Piezoelectric Thin Film Vibration Sensor

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Frequently Asked Questions

Q: What is the LDT0-028K piezoelectric vibration sensor used for?

A: The LDT0-028K piezoelectric thin film vibration sensor is used in a wide range of applications including washing machine vibration monitoring, automobile alarm systems, security systems, low-power wake-up switches, and DIY scientific instrumentation projects. Its cantilever beam design makes it especially effective as a low-frequency vibration detector.

Q: Can the LDT0-028K sensor directly trigger microcontroller or MOSFET circuits?

A: Yes. When used as a flexible switch and subjected to direct deformation, the LDT0-028K generates enough output voltage to directly trigger MOSFET and CMOS circuits without the need for additional amplification stages, making it ideal for low-power embedded systems and wake-up applications.

Q: How can I adjust the sensitivity or resonant frequency of this vibration sensor?

A: You can tune the resonant frequency and sensitivity by adding or changing mass blocks attached to the free end of the cantilever beam, or by adjusting the free (unsupported) length of the element. A longer free length or heavier mass block will lower the resonant frequency while increasing sensitivity.

Q: What temperature range does the LDT0-028K operate in?

A: The standard operating temperature range is 0°C to 85°C, with a storage temperature range of -40°C to 85°C. High-temperature LDT variants can withstand up to 125°C, making them suitable for more demanding thermal environments.