Enhancing signal quality for piezoelectric accelerometers, hydrophones, microphones and other piezoelectric sensors.
Charge amplifiers and signal conditioning play crucial roles in optimizing the performance of dynamic devices such as piezoelectric accelerometers, hydrophones, microphones and other similar sensors. Piezoelectric sensors are widely utilized across industries for their durability and ability to withstand high temperatures. Fundamentally, a piezoelectric accelerometer or other sensor outputs a signal without the need for any internal electronics — making it perfect for harsh environments where active components would otherwise fail.
One of the key factors in charge amplifier design is ensuring a low noise floor within the electronics, to minimise issues when applying signal amplification. Our lineup of charge amplifiers is engineered to deliver minimal noise amplification while accommodating diverse package configurations — catering to applications ranging from industrial condition monitoring to field and laboratory testing.
One of the little-understood issues with using piezoelectric sensors is triboelectric noise, caused by cable movement generating additional charge within the cable as cable layers rub together. This can be minimized using low-noise cables — Kemo offer a range of high-quality low-noise cable assemblies that provide the highest level of triboelectric noise reduction.
At Kemo, we offer comprehensive training programs focused on noise reduction techniques and the selection of appropriate cables to mitigate triboelectric noise associated with piezoelectric accelerometer outputs. For more complex signal conditioning needs — where noise from cables, external sources or installation conditions becomes critical — our team can specify a tailored solution from the range below.
DIN Rail Mounting Charge Amplifier — also features IEPE signal conditioning. A compact and versatile single-channel amplifier with adjustable IEPE supply, usually available from stock.
3-channel charge amplifier with ×1, ×10 and ×100 gain individually selectable per channel. DC powered for ease of use in the field or laboratory.
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 charge amplifier with ×1, ×10 and ×100 gain individually selectable per channel. DC powered for ease of use in the field or laboratory.
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.
Charge-to-Voltage inline converter.
Charge-to-Voltage inline converter.
Charge-to-Voltage inline converter.