EUROPE


Vibration Pickup

Piezoelectric accelerometer (Charge type)

Compression type

Compression type

Compression type has a piezoelectric element fastened by a screw between a piece of weight and the base. Measurement of pretty large shock is possible because of its advanced mechanical strength. The resonant frequency is high for its sensitivity. Therefore, the accelerometers of this type can be used not only for general applications but also for measurements of the high speed rotational machinery or detection of leakage from the pipe lines.

  • ■ Suitable for measurements of high frequency or high acceleration vibrations
  • ■ Stable works, advanced linearity
  • ■ Wide operating temperature range

Charge / compression type product lineup

Shear type

Shear type

Shear type is constructed so that each piezoelectric element has shear that is proportional to applied acceleration between the poles. It is useful for low frequency vibration measurement even in the environments of large temperature change because it is hard to be effected by the pyroelectricity. Furthermore, it is less sensitive to the strain in the base.

  • ■ Suitable for measurements of high frequency or high acceleration vibrations
  • ■ Tough against the temperature changeand disturbance caused by the strain in mounting section
  • ■ Covering small and light to high sensitivity

Charge / shear type product lineup

Bending type

Bending type

Bending type has a construction to get the signal from the piezoelectric elements glued on a metal plate which is bent being applied an acceleration. This is light weight and has high acceleration sensitivity to be suitable to monitor earthquakes or small vibration of the testing models of dam, power station or small equipments, for example.

  • ■ Small size, light weight, high sensitivity
  • ■ Stable works, advanced linearity

Charge / bending type product lineup

Dual-line output charge amplifier

Dual-line output charge amplifier is a charge/voltage converter which converts charge output of accelerometer to voltage with low impedance. It operates being supplied current by measurement equipment with a constant current source.The output signal is obtained superposed on the current supply.

Dual-line output charge amplifier

Application
1. In the case of distance between a measurement
 instrument and a charge-type pickup.
*Adopting Commercially available coaxial cable enable cost reduction and high noise-resistance.
2. Usable when measurement spot is high temperature
 and unable to use the pickup with built-in pre-amplifier.
3. For use with charge type accelerometer and FFT
 analyzer equipped with a constant current supplier.

Dual-line output charge amplifier product lineup

Piezoelectric accelerometer(Built-in pre-amplifier type)

This is a piezoelectric accelerometer which has a built in charge amplifier to output a low output impedance voltage signal. Less expensive coaxial cable can be laid long distance with minimum lowering of sensitivity and influence of external noise. It is suitable for vibration monitoring. However, It is not recommendable for use in high temperature, in very high frequency range nor for meauament of very large accleraration.

Features

  • Frequency response

    [Frequency response]

    Upper usable frequency limit depends on its own resonant frequency or rigidity of mounting. Lower useful frequency is limited by the time constant of the amplifier.

  • Temperature characteristics

    [Temperature characteristics]

    Acceleration sensitivity of a piezoelectric element is effected by temperature. While such effect is dependent on material and structure, high temperature gives larger capacitance, higher charge sensitivity and smaller voltage sensitivity generally.

  • Cross axis sensitivity

    [Cross axis sensitivity]

    Sensitivity to the acceleration applied along the axis of 90° to the sensitive axis is designed to be less than 5%.

Fixing methods

Fixing methods

*Bending type should be of stationary or fixed by glue / double-sided adhesive tape.

Product lineup

■Specifications

Resonance frequency > 35,000 Hz
Frequency range fc*1 to 10,000 Hz ±1 dB
Charge sensitivity 1.5 pC/ (m/s2) ±20 %
Capacitance 950 pF
Maximum allowable acceleration 20,000 m/s2
Operating temperature range -30 to +150 °C
Cable connection Sidewise 10-32 threaded connector
Weight 9 g
Case material Aluminum (A2017B)

*1 fc : The value is defined by the time constant of amplifier

■Specifications

Resonance frequency > 30,000 Hz
Frequency range fc*1 to 10,000 Hz ±1 dB
Charge sensitivity 5.0 pC/ (m/s2) ±10 %
Capacitance 1,000 pF
Maximum allowable acceleration 5,000 m/s2
Operating temperature range -30 to +150 °C
Structure Isolated / drip proof (Equivalent to IP54)
Cable connection Upward TNC connector
Weight 45 g
Case material Stainless steel (SUS303)

*1 fc : The value is defined by the time constant of amplifier

■Specifications

Resonance frequency > 23,000 Hz
Frequency range fc*1 to 5,000 Hz ±1 dB
Charge sensitivity 5.0 pC/ (m/s2) ±20 %
Capacitance 1,000 pF
Maximum allowable acceleration 16,000 m/s2
Operating temperature range -20 to +250 °C
Cable connection Isolated waterproof (Equivalent to IP54)
Cable connection Sidewise 10-32 threaded connector
Weight 42 g
Case material Stainless steel (SUS304)

*1 fc : The value is defined by the time constant of amplifier

■Specifications

Resonance frequency > 40,000 Hz
Frequency range fc*1 to 13,000 Hz
Charge sensitivity 0.22 pC/ (m/s2) ±20 %
Capacitance 1,000 pF
Maximum allowable acceleration 10,000 m/s2
Operating temperature range -20 to +150 °C
Cable connection Sidewise M3 threaded connector
Weight 1.2 g
Material Titanium and aliminum (A2017B)

*1 fc : The value is defined by the time constant of amplifier

High
sensitivity
Charge /
share type
Vibration measuring system

 VP-101

■Specifications

Resonance frequency > 15,000 Hz
Frequency range fc*1 to 5,000 Hz ±1 dB
Charge sensitivity 10 pC/ (m/s2) ±10 %
Capacitance 1,000 pF
Maximum allowable acceleration 3,000 m/s2
Operating temperature range -20 to +120
Cable connection Upward 10-32 threaded connector
Weight 35 g
Material Stainless steel (SUS303)

*1 fc : The value is defined by the time constant of amplifier

■Specifications

Resonance frequency > 15,000 Hz
Frequency range fc*1 to 6,000 Hz ±1 dB
Charge sensitivity 1.5 pC/ (m/s2) ±10 %
Capacitance 1,300 pF ±20 %
Maximum allowable acceleration 5,000 m/s2
Operating temperature range -20 to +150
Cable connection Sidewise 10-32 threaded connector
Weight 65 g
Material Stainless steel (SUS303)
Large
acceleration
General Charge /
share type
Vibration measuring system

 VP-12

■Specifications

Resonance frequency > 30,000 Hz
Frequency range fc*1 to 10,000 Hz ±1 dB
Charge sensitivity 1.5 pC/ (m/s2) ±10 %
Capacitance 1,300 pF
Maximum allowable acceleration 20,000 m/s2
Operating temperature range -20 to +150
Cable connection Upward 10-32 threaded connector
Weight 15 g
Material Stainless steel (SUS303)

*1 fc : The value is defined by the time constant of amplifier

■Specifications

Resonance frequency > 35,000 Hz
Frequency range fc*1 to 10,000 Hz
Charge sensitivity 0.16 pC / (m/s2) ±20 %
Capacitance 440 pF
Maximum allowable acceleration 50,000 m/s2
Operating temperature range -20 to +160 °C
Cable connection Sidewise M3 threaded connector
Weight 5.2 g
Material Titanium

*1 fc : The value is defined by the time constant of amplifier

■Specifications

Resonance frequency > 12,000 Hz
Frequency range fc*1 to 3,500 Hz ±1 dB
Charge sensitivity 35 pC/ (m/s2) ±10 %
Capacitance 1,500 pF ±20 %
Maximum allowable acceleration 1,500 m/s2
Operating temperature range -20 to +120
Cable connection Sidewise 10-32 threaded connector
Weight 100 g
Material Stainless steel (SUS303)

*1 fc : The value is defined by the time constant of amplifier

Wide
temperature range
Charge /
share type
Vibration measuring system

 VP-32

■Specifications

Resonance frequency > 30,000 Hz
Frequency range fc*1 to 10,000 Hz ±1 dB
Charge sensitivity 3.0 pC/ (m/s2) ±10 %
Capacitance 1,500 pF
Maximum allowable acceleration 9,800 m/s2
Operating temperature range -40 to +160 °C
Cable connection Sidewise 10-32 threaded connector
Weight 24 g
Material Stainless steel (SUS303)

*1 fc : The value is defined by the time constant of amplifier

■Specifications

Resonance frequency > 60,000 Hz
Frequency range fc*1 to 13,000 Hz ±1 dB
Charge sensitivity 0.035 pC/ (m/s2) ±20 %
Capacitance 340 pF
Maximum allowable acceleration 100,000 m/s2
Operating temperature range -50 to +160 °C
Cable connection Sidewise 10-32 threaded connector
Weight 0.2 g
Case material Titanium

*1 fc : The value is defined by the time constant of amplifier

■Specifications

Resonance frequency > 50,000 Hz
Frequency range fc*1 to 10,000 Hz ±1 dB
Charge sensitivity 0.04 pC/ (m/s2) ±20 %
Capacitance 250 pF
Maximum allowable acceleration 50,000 m/s2
Operating temperature range -50 to +160 °C
Cable connection Sidewise direct 10–32 with receptacle
Weight 1.2 g
Case material Titanium

*1 fc : The value is defined by the time constant of amplifier

Large
acceleration
General Charge /
share type
Vibration measuring system

 VP-4200

■Specifications

Resonance frequency > 20,000 Hz
Frequency range fc*1 to 7,000 Hz ±1 dB
Charge sensitivity 5.0 pC/ (m/s2) ±10 %
Capacitance 1,400 pF
Maximum allowable acceleration 10,000 m/s2
Operating temperature range -20 to +150 °C
Cable connection Upword 10-32 threaded connector
Weight 29 g
Material Stainless steel (SUS303)

*1 fc : The value is defined by the time constant of amplifier

■Specifications

Resonance frequency > 25,000 Hz
Frequency range fc*1 to 7,000 Hz ±1 dB
Charge sensitivity 5.0 pC/ (m/s2) ±10 %
Capacitance 1,000 pF
Maximum allowable acceleration 10,000 m/s2
Operating temperature range -20 to +120 °C
Cable connection Upword 10-32 threaded connector
Weight 45 g
Material Stainless steel (SUS303)

*1 fc : The value is defined by the time constant of amplifier

Light High
sensitivity
Charge /
bending type
Vibration measuring system

 VP-4132

■Specifications

Resonance frequency > 3,000 Hz
Frequency range fc*1 to 1,000 Hz ±1 dB
Charge sensitivity 3.5 pC/ (m/s2) ±20 %
Capacitance 1,000 pF
Maximum arrowable acceleration 2,000 m/s2
Operating temperature range -20 to +80 °C
Cable connection Sidewise M3 threaded connector
Weight 0.9 g
Material Aluminum (A5052)

*1 fc : The value is defined by the time constant of amplifier

Small Built-in pre-amplifier
/ Shear type product lineup
Vibration measuring system

 VP-A1P0

■Specifications

Resonance frequency > 40,000 Hz
Frequency range 3 to 12,000 Hz
Voltage sensitivity 1 mV/ (m/s2) ±10 %
Maximum measurable acceleration 3,000 m/s2
Power supply 0.5–5 mA constant current,
voltage 15–25 V
Operating temperature range -30 to +110 °C
Cable connection Upward M3 threaded connector
Weight 1.9 g
Material Titanium 
General Built-in pre-amplifier
/ Shear type product lineup
Vibration measuring system

 VP-A1P1

■Specifications

Resonance frequency > 35,000 Hz
Frequency range 10 to 8,000 Hz
Voltage sensitivity 10 mV/ (m/s2) ±10 %
Capacitance 300 m/s2
Maximum allowable acceleration 0.5–10 mA constant current,
voltage 15–36 V
Operating temperature range -50 to +110 °C
Cable connection Sidewise 10-32 threaded connector
Weight 10 g
Material Titanium
General 3 axis Built-in pre-amplifier
/ Shear type product lineup
Vibration measuring system

 VP-A1P1Z

■Specifications

Resonance frequency > 35,000 Hz
Frequency range 3 to 5,000 Hz
Voltage sensitivity 10 mV/ (m/s2) ±10 %
Maximum measurable acceleration 500 m/s2
Power supply 0.5–10 mA constant current,
voltage 21–24 V
Operating temperature range -50 to +110 ゚C (5mA) /-50 to +70 ゚C (10mA)
Cable connection Sidewise dedicated connector
Weight 11 g
Material Titanium
Isolated Drip proof Built-in pre-amplifier
/ compression type product lineup
Vibration monitoring system

 VP-A51IW

■Specifications

Resonance frequency > 30,000 Hz
Frequency range 5 to 10,000 Hz ±3 dB
Voltage sensitivity 5 mV/ (m/s2) ±10 %
Maximum measurable acceleration 900 m/s2
Power supply 0.5 to 10 mA constant current,
voltage 12 to 30 V
Operating temperature range -30 to +110 °C
Structure Isolated / drip proof (Equivalent to IP54)
Cable connection Upward TNC connector
Weight 50 g
Material Stainless steel (SUS303) 
Isolated Drip proof Large
acceleration
Built-in pre-amplifier
/ compression type product lineup
Vibration monitoring system

 VP-A11IW

■Specifications

Resonance frequency > 30,000 Hz
Frequency range 5 to 15,000 Hz ±3 dB
Voltage sensitivity 1 mV/ (m/s2) ±20 %
Maximum measurable acceleration 4,500 m/s2
Power supply 0.5 to 10 mA constant current,
voltage 12 to 30 V
Operating temperature range -30 to +110 °C
Structure Isolated / drip proof (Equivalent to IP54)
Cable connection Upward TNC connector
Weight
50 g
Material Stainless steel (SUS303)
Intrinsic
safety
Built-in pre-amplifier
/ Shear type product lineup
Vibration monitoring system

 HS-100I

■Specifications

Resonance frequency > 32,000 Hz
Frequency range 2 to 10,000 Hz ±10 %
Voltage sensitivity 50 mV/G ±10 %
Maximum measurable acceleration 1,568 m/s2
Power supply 0.5 to 8 mA constant current,
voltage 15 to 30 V
Operating temperature range -20 to +80 °C
Structure Instrinsic safety (Ex iaⅡC T4 Ga)
Cable connection M12 connector
Weight 106 g
Material Stainless steel (SUS303)
Dual-line output
charge amplifier
Vibration monitoring system

 PA-2

■Specifications

Gain
-1 mV/pC ±2 %
Power supply 0.5 to 5 mA constant current,
voltage15 to 30 V
Frequency range 2 to 50,000 Hz(In the case of 1,000 pF)
Maximum output voltage > 3.5 Vp
Output impedance > 20 Ω
Operating temperature range -20 °C to +70 °C (No freezing)
Noise threshold > 20 μVrms
Cable connection
BNC connector
Weight Approx. 30 g
Ground Housing
Material Aluminum