Piezoelectric Sensors | Charge Amplifiers | PACELine Piezoelectric Sensors | Charge Amplifiers | PACELine | HBM

Piezoelectric Sensors and Charge Amplifiers

PACEline - that's the name of HBM's line of force sensors, strain sensors and charge amplifiers based on piezoelectric technology.

Why choose piezo force sensors from HBM

Quality & range of products - All piezoelectric products comply with HBM's stringent quality standards. In addition, we provide you with a practice-oriented range of products covering the entire piezoelectric measuring chain.

Availability - We have sufficient quantities of our sensors, charge amplifiers and accessories in stock to ensure optimum availability for you.

Consulting - Benefit from our experience in force sensor technology and call us to clarify all commercial and technical questions.

Information - Our knowledge base and our glossary provide you with everything worth knowing about piezoelectric measurement technology. Benefit from our newsletters and information events as well as valuable trainings on force measurement technology.

When is the piezoelectric measuring chain the better alternative?

Piezoelectric sensors offer unique advantages in many applications:

  • Where space is a constraint: Piezos are small and can be easily integrated.
  • When sensors are used with high initial load: 80 kN initial load - 500 N to be measured? Benefit from the option of short-circuiting the charge - irrespective of the force applied. When you perform a reset, no charge is applied. Select the electronics that provides the measuring range you actually need.
  • When extreme overload stability is required: Take advantage of the fact that the sensitivity and nominal (rated) force of piezoelectric sensors are unaffected by the load applied. Irrespective of whether you use a sensor with 20 kN or 120 kN - the output signal remains unchanged. If there is the possibility that high forces may occur, opt for 'one size larger' - without any adverse effects.
  • When extreme dynamics are required with small forces: When high dynamics are required, in particular with small forces, PACEline sensors are the right solution. Resonance frequencies well into the five-figure frequency range result in bandwidths that are required in your application.

Examples of piezoelectric measurement chains

Mounting aid for Load washer

Piezoelectric load washers require pre-stressing. The new CPS sets of pre-stressing elements facilitate easy and permanent pre-stressing. They are made from stainless steel and offer the required hardness as well as the bolt pitches selected to match the typical pre-stressing force.

A set of pre-stressing elements includes a bolt, a washer and a nut. The figure below gives a schematic representation of the setup.

Accessories and Cables


CSB4/1 summing box

Simplify the installation of piezoelectric sensors. The CSB4/1 summing box enables up to four piezoelectric sensors to be connected in parallel to an amplifier input. It can be fastened with screws and features electrical isolation of enclosure and sensor shielding.

CSB4/1 - Data sheet

CSB4/1 - Operating manual


All cables for piezoelectric transducers from HBM are particularly noise-free and can be used over the sensors' entire temperature range.

The main specifications at a glance:

  • Temperature range: -55 to +200 degrees C
  • Shielding: Semi-conducting intermediate layer, silver-coated copper braid
  • Sheath: FPM
  • Triboelectric noise: Maximum 1 pC
  • Insulation at 20°C: 1014 ohms
  • Impedance: 50 ± 5 ohms
  • Outside diameter: 1.9 mm
  • Bending radius: 10 mm
  • Insulator: PTFE

Our range of accessories is constantly being extended and currently comprises the following cables:


  • Adapter for connecting two cables with 10-32UNF connector
  • Sockets at both ends
  • For extending piezoelectric cables


  • Cable length: 2, 3 or 7 m
  • 10-32 UNF plug on both sides
  • Suitable for all sensors with plug, CSB summing box and CMA amplifier


  • Cable length: 0,2 or 3 m
  • 10-32 UNF plug on both sides, however, compared to 1-KAB143 with massive plug protection
  • O-ring seal at sensor for extremely harsh conditions of use
  • Suitable for all sensors with plug, CSB summing box and CMA amplifier


  • Cable length: 2 or 3 m
  • One side with type 10-32 UNF plug, other cable side with BNC plug
  • For connection of all sensors with plug, CSB summing box and CMD digital charge amplifier