Noliac Creates Drivers For Piezoelectric Actuators

Noliac Systems has developed single- and dual-channel dynamic drivers for piezoelectric actuators and three standard models are now available for purchasing. One driver is a basic device for fine-adjustment mechanisms, for example, while two are designed as standalone laboratory desktop units. The basic driver - the NDR6110 - provides a full-stroke driving capability for benders (bimorphs), stacked actuators, bipolar stacks and shear-mode actuators.

The driver enables the supply of various piezoelectric actuators with static and dynamics voltage in the range of up to +/-100V or 0-200V. The basic device can be used as part of a fine-adjustment mechanism in mechanical positioning equipment with piezo feed or for other piezo element applications. The laboratory drivers - the NDR6880 (single channel) and the NDR6881 (dual channel) - provide high current, high power, a wide frequency range and the galvanic separation of output from other circuitry.

The devices are sources of single-polarity voltage and their values are proportional to their input signal. The drivers consist of two main blocks: the preamplifier and the high-voltage stage. The input stage is galvanically separate from the output high-voltage part. Signal ground of the BNC connectors is connected to device casing. Amplifier output is floating. One of their wires could be optionally grounded externally.

Comments

Post a Comment

Popular posts from this blog

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin...
Read more

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa...
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more