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Piezofilm MiniSense 100 series

Image MiniSense 100

The MiniSense 100 is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies.

Pins are designed for easy installation and are solderable. Horizontal and vertical mounting options are offered. The active sensor area is shielded for improved RFI/EMI rejection.

Rugged, flexible PVDF sensing element withstands high shock overload. Sensor has excellent linearity and dynamic range, and may be used for detecting either continuous vibration or impacts. The mass may be modified to obtain alternative frequency response and sensitivity selection (consult factory).

The MiniSense 100 acts as a cantilever-beam accelerometer. When the beam is mounted horizontally, acceleration in the vertical plane creates bending in the beam, due to the inertia of the mass at the tip of the beam.

Strain in the beam creates a piezoelectric response, which may be detected as a charge or voltage output across the electrodes of the sensor. The sensor may be used to detect either continuous or impulsive vibration or impacts.

For excitation frequencies below the resonant frequency of the sensor, the device produces a linear output governed by the "baseline" sensitivity. The sensitivity at resonance is significantly higher.

Impacts containing highfrequency components will excite the resonance fre-quency, as shown in the plot above (response of MiniSense 100 to a single half-sine impulse at 100 Hz, of amplitude 0.9 g). The ability of the sensor to detect low frequency motion is strongly influenced by the external electrical circuit.


Features

  • High Voltage Sensitivity (1 V/g)
  • Over 5 V/g at Resonance
  • Horizontal or Vertical Mounting
  • Shielded Construction
  • Solderable Pins, PCB Mounting
  • Low Cost
  • < 1% Linearity
  • Up to 40 Hz (2,400 rpm) Operation Below Resonance

Applications

  • Washing Machine Load Imbalance
  • Vehicle Motion Sensor
  • Anti-Theft Devices
  • Vital Signs Monitoring
  • Tamper Detection
  • Impact Sensing

Documents and Files

File Date Size
Piezofilm MiniSense 100 Series datasheet (English) 04-05-2015 335KB
Piezofilm sensors technical manual (English) 02-08-2012 1.9MB
Piezofilms FAQs (English) 02-05-2007 136KB
Interfacing piezofilms to electronics (English) 01-03-2006 561KB
Applying piezoelectric film in electronic designs (English) 16-12-2009 194KB
Piezofilm sensors modeling (English) 01-01-1989 760KB
Power generation using Piezofilms (English) 24-08-2010 181KB
Vital signs monitoring with piezofilm sensors (English) 18-05-2012 1.2MB
Ultrasonic PVDF transducer for 3-4 MHz operation (English) 13-09-2001 240KB
Aerosol spray noise profile (English) 26-02-2001 214KB
Detection of airflow (inhalation) in tube using laminated piezofilm element (English) 13-03-2001 461KB
Elasticated Chest/Abdomen Strap with Piezo Film Sensor (English) 04-09-2000 144KB
Comparison of frequency response: double-coated tape vs epoxy resin (English) 16-05-2002 154KB
Experiments with front-face co-planar ground electrodes (English) 02-02-2001 133KB
Piezo Film Glass-Break Sensors (English) 01-12-1998 283KB
Human shaking detection (English) 22-02-2001 141KB
Impact detection (English) 01-03-2000 167KB
PVDF Modal Analysis (English) 01-02-1988 885KB
Pulse/echo response of 52 micron PVDF with silver ink electrodes (English) 29-03-2002 304KB
PVDF noise performance (English) 28-10-2002 136KB
Pyroelectric Response in PVDF (English) 29-08-2001 250KB
Inflatable Chair Gives Respiration & Pulse Signals (English) 07-09-1999 96KB
Efficiency comparison between moving-coil and piezo film speakers (English) 13-10-2000 104KB
Comparison between piezofilm sensor, strain gauge, and accelerometer (English) 01-01-1987 400KB
Fuel Tank Level Sensor (English) 29-09-1992 597KB
Vandal-proof PVDF keypad principles (English) 16-06-1993 132KB
Vehicle vibration monitoring using PVDFs (English) 07-01-2002 181KB
Vibrating diaphragm using piezofilm (English) 23-09-1999 190KB
Detecting wheel rotation using piezofilms (English) 24-09-2002 151KB