Single channel 4 quadrants Modules from -700V to +700V

High Voltage 4 quadrants power supply for fast high precision PIEZOELECTRIC ACTUATORS


Piezoelectric actuators facilitate precise positioning at subnanometer accuracies. For specific applications, specialized four-quadrant high-voltage power supplies are required. These power supplies are capable of both supplying and absorbing current, featuring negative to positive output voltages characterized by very low noise and, at times, high slew rates.

I-Conomy specializes in the design and manufacture of cutting-edge custom electronics tailored to customer specifications. In this particular instance, the power supply plays a crucial role in enabling rapid scanning of frequencies emitted from a Fabry–Pérot interferometer (FPI) or etalon, an optical cavity composed of two parallel reflecting surfaces (thin mirrors). Optical waves can traverse the optical cavity only when resonating with it. The Fabry–Pérot interferometer is an integral component of the Interferometric BIdimensional Spectrometer 2.0 (IBIS 2.0).

In the event of noise affecting the power supply for the piezoelectric actuator, the output frequency becomes unstable. Given the necessity for swift scans of output frequencies, voltage changes must occur within milliseconds. The Interferometric BIdimensional Spectrometer 2.0 (IBIS 2.0) is a focal plane instrument developed for acquiring high-cadence spectroscopic and spectropolarimetric images of the solar photosphere and chromosphere.

Figure 1: IBIS 2.0 with new optical configuration mounted on the optical bench of the laboratory at INAF - Osservatorio Astronomico di Roma.
Figure 1: IBIS 2.0 with new optical configuration mounted on the optical bench of the laboratory at INAF – Osservatorio Astronomico di Roma.

IBIS 2.0 is anticipated to exhibit a high level of stability in imaging spectropolarimetry, with consistently repeatable performance. This characteristic holds significant utility for various scientific objectives, including:

  1. Conducting a systematic survey of the quiet Sun through daily data acquisition at the solar disc center, thereby facilitating solar irradiance measurements.
  2. Investigating magnetohydrodynamic (MHD) wave phenomena with respect to spatial position, time, and atmospheric height in and around key features of the solar atmosphere.
  3. Describing spectropolarimetric signatures observed in Stokes profiles during magnetic flux cancellation in the lower solar atmosphere.
  4. Deriving signatures of rising plasma in emerging flux regions, such as time delays during passage through different atmospheric heights and vertical velocities.

IBIS 2.0 is planned to be utilized in coordinated observing campaigns alongside ground-based and space telescopes. This collaborative approach aims to capitalize on the complementary features of IBIS 2.0 with other existing and upcoming instruments dedicated to solar studies.

To effectively address the outlined scientific requirements, IBIS 2.0 incorporates a minimum field of view (FOV) of approximately 60” x 60” and achieves a spatial resolution of about 0”.16. A key technical attribute enabling satisfaction of scientific objectives is the instrument’s wide flexibility in spectral sampling, allowing the use of varying numbers of points along each line and different steps. Two primary observation modes are mandated for each wavelength scan: a sequential scan of spectral lines, capturing one image for each spectral point, and the option to capture multiple images at the same spectral points for each step. Furthermore, it is imperative to ensure the capability to sample more than one spectral line during an observing run, both sequentially and through repeated scans of each line before transitioning to the next one.