Optimized signal conditioning and constant-current power supplies for IEPE accelerometers, microphones and force sensors.
IEPE amplifiers provide the constant-current power required by IEPE (Integrated Electronics Piezoelectric) accelerometers, microphones, force sensors and other dynamic transducers — devices which include an internal circuit board that amplifies and conditions the piezoelectric charge signal before it leaves the sensor body.
One of the significant benefits of IEPE sensors is that signal conditioning is now integrated into many Data Acquisition (DAQ), vibration controller and instrumentation platforms — often as a software-selectable feature, sometimes via a manual switch. Built-in IEPE power means sensors can be connected directly to the DAQ without external charge amplifiers, simplifying the measurement chain.
However, a broad array of applications still rely on measurement hardware that lacks inherent IEPE conditioning. In those cases, an external supply becomes essential — typically with the flexibility to fine-tune signal gain. Many of Kemo's signal amplifiers allow the IEPE supply current to be adjusted from a standard 4 mA up to 12 mA, giving users the headroom to drive signals along longer cable runs without distortion.
Kemo's comprehensive range of signal conditioning instruments not only serves as standalone conditioners and amplifiers, but also offers seamless integration with filtering functionality. The use of integrated filters minimises additional noise from RFI/EMC, anti-aliasing artefacts and inter-instrument cabling — improving data accuracy and, in industrial applications, machine efficiency.
DIN Rail Mounting IEPE single-channel supply with gain and variable IEPE supply current.
DIN Rail Mounting IEPE single-channel supply with gain and variable IEPE supply — also features 4–20 mA output for process integration.
3-channel IEPE supply with ×1, ×10 and ×100 gain. BNC input and output on the front panel. DC powered for use in the field and the laboratory, with earth / floating configuration.
3-channel charge / IEPE amplifier with ×1, ×10 and ×100 gain individually selectable per channel. Each channel can be switched from charge to IEPE conditioning. DC powered for ease of use in the field or laboratory, with earth / floating configuration.
9-channel IEPE supply with ×1, ×10 and ×100 gain. BNC input and output on the front panel. DC powered for use in the field and the laboratory, with earth / floating configuration.
9-channel charge / IEPE amplifier with ×1, ×10 and ×100 gain individually selectable per channel. Each channel can be switched from charge to IEPE conditioning. DC powered for ease of use in the field or laboratory, with earth / floating configuration.
Single-channel rechargeable battery-powered IEPE supply. Perfect for field measurements — the 2000 mAh battery provides up to 5 days of continuous use, and the supplied USB lead lets you top it up each evening.