Bergoz Current Transformer NPCT

The Bergoz New Parametric Current Transformer (NPCT) is the latest evolution of the Unser Transformer, commonly called DCCT, developed at CERN in 1966 by Klaus B. Unser.

The NPCT works on the principle of the zero-flux DC current transformer (DCCT). The DC component of the current flowing through the toroid sensor is detected by a magnetic modulator also called fluxgate or second harmonic detector.

The AC component is detected by a AC Hereward transformer. The two circuits are cascaded in a common feedback loop to generate a magnetic flux which always cancel the primary current flux. The NPCT output is the voltage developed by the feedback current passing through a precision resistor.

Features

  • Full scale range from ±20mA to ±20A controlled by TTL levels
  • 5 µA/sqrt(Hz) resolution in every range
  • 1 µA/sqrt(Hz) or 0.5 µA/sqrt(Hz) resolution on option
  • Frequency response DC to 10 kHz
  • Linearity error < 0.1%
  • Sensor inner diameter from 22.2 mm to 245 mm to fit around any vacuum chamber or to install along the beam line
  • NPCT package includes spares for electronics and power supply

Applications

  • The Parametric Current transformer is used on most particles accelerators in the world to measure the average beam current. It is an essential instrument for machine tuning and commissioning.
  • The large dynamic range, the wide bandwidth and high resolution make it the ideal instrument to measure beam lifetime in storage rings.
  • It is often the only truly calibrated beam instrument in an accelerator and serves as a reference to calibrate other beam diagnostics.
Part No. Description Qty Price
NPCT-055-

New-PCT sensor, >55mm ID

$40,690.00
Description

New-PCT sensor, >55mm ID

Qty
NPCT-075-

New-PCT sensor, >75mm ID

$42,270.00
Description

New-PCT sensor, >75mm ID

Qty
NPCT-115-

New-PCT sensor, >115mm ID

$44,990.00
Description

New-PCT sensor, >115mm ID

Qty
NPCT-130-

New-PCT sensor, >130mm ID

$46,020.00
Description

New-PCT sensor, >130mm ID

Qty
NPCT-175-

New-PCT sensor, >175mm ID

$50,200.00
Description

New-PCT sensor, >175mm ID

Qty
NPCT-195-

New-PCT sensor, >195mm ID

$51,270.00
Description

New-PCT sensor, >195mm ID

Qty
NPCT-202-

New-PCT sensor, >202mm ID

$53,310.00
Description

New-PCT sensor, >202mm ID

Qty
NPCT-245-

New-PCT sensor, >245mm ID

$57,220.00
Description

New-PCT sensor, >245mm ID

Qty
NPCT-245-CXXX-

Interconnect cable length, price/meter (max 130 meter)

$25.00
Description

Interconnect cable length, price/meter (max 130 meter)

Qty
NPCT-245-RHCXXX-

Siltem® interconnect, IEC 544-4 radiation index >7, price/meter (max 130 meter)

$70.00
Description

Siltem® interconnect, IEC 544-4 radiation index >7, price/meter (max 130 meter)

Qty
NPCT-245-RHCXXX-HR-

High-resolution sensor option

$17,180.00
Description

High-resolution sensor option

Qty
NPCT-245-RHCXXX-VHR-

Very high-resolution sensor option

$26,210.00
Description

Very high-resolution sensor option

Qty
NPCT-245-RHCXXX-H-

Radiation-resistant sensor option

$1,780.00
Description

Radiation-resistant sensor option

Qty
NPCT-CF2″1/8-22.4-120-UHV

In-flange NPCT 22.2-mm ID, DN/NW25CF, 120mm axial

$59,070.00
Description

In-flange NPCT 22.2-mm ID, DN/NW25CF, 120mm axial

Qty
NPCT-CF2″3/4-34.9-120-UHV

In-flange NPCT 34.9-mm ID, DN/NW40CF, 120mm axial

$61,310.00
Description

In-flange NPCT 34.9-mm ID, DN/NW40CF, 120mm axial

Qty
NPCT-CF3″3/8-38.0-120-UHV

In-flange NPCT 38.0-mm ID, DN/NW50CF, 120mm axial

$63,270.00
Description

In-flange NPCT 38.0-mm ID, DN/NW50CF, 120mm axial

Qty
NPCT-CF4″1/2-47.7-120-UHV

In-flange NPCT 47.7-mm ID, DN/NW63CF, 120mm axial

$68,140.00
Description

In-flange NPCT 47.7-mm ID, DN/NW63CF, 120mm axial

Qty
NPCT-CF4″1/2-60.4-120-UHV

In-flange NPCT 60.4-mm ID, DN/NW63CF, 120mm axial

$69,160.00
Description

In-flange NPCT 60.4-mm ID, DN/NW63CF, 120mm axial

Qty
NPCT-CF6″-96.0-120-UHV

In-flange NPCT 96.0-mm ID, DN/NW100CF, 120mm axial

$83,630.00
Description

In-flange NPCT 96.0-mm ID, DN/NW100CF, 120mm axial

Qty
NPCT-CF8″-147.6-120-UHV

In-flange NPCT 147.6-mm ID, DN/NW160CF, 120mm axial

$119,940.00
Description

In-flange NPCT 147.6-mm ID, DN/NW160CF, 120mm axial

Qty
NPCT-CF10″-198.4-120-UHV

In-flange NPCT 198.4-mm ID, DN/NW200CF, 120mm axial

$149,580.00
Description

In-flange NPCT 198.4-mm ID, DN/NW200CF, 120mm axial

Qty
NPCT-CF10″-198.4-120-UHV-ARB#xxx

Non-round, arbitrary shape aperture option

$2,720.00
Description

Non-round, arbitrary shape aperture option

Qty
NPCT-CF10″-198.4-120-UHV-316LN-

AISI 316LN option, instead of 304

$2,120.00
Description

AISI 316LN option, instead of 304

Qty
NPCT-CF10″-198.4-120-UHV-CXXX-

Interconnect cable length, price/meter (max 130 meter)

$25.00
Description

Interconnect cable length, price/meter (max 130 meter)

Qty
NPCT-CF10″-198.4-120-UHV-RHCXXX-

Siltem® interconnect, IEC 544-4 radiation index >7, price/meter (max 130 meter)

$70.00
Description

Siltem® interconnect, IEC 544-4 radiation index >7, price/meter (max 130 meter)

Qty
NPCT-CF10″-198.4-120-UHV-RHCXXX-HR-

High-resolution sensor option

$17,460.00
Description

High-resolution sensor option

Qty
NPCT-CF10″-198.4-120-UHV-RHCXXX-VHR-

Very high-resolution sensor option

$27,470.00
Description

Very high-resolution sensor option

Qty
NPCT-CF10″-198.4-120-UHV-RHCXXX-H-

Radiation-resistant sensor option

$1,780.00
Description

Radiation-resistant sensor option

Qty
Quantity Discount Schedule:
Quantity 1 – 4 5 – 9 10 – 24
Discount 0% 7% 13%

Notes:

** Radiation-resistant sensor option only available with SMA connector

Terms and Conditions

Terms and Conditions:

Prices above are for domestic deliveries to USA, Canada, and Mexico only.
For deliveries in all other countries please contact Bergoz.
Prices are expressed in U.S. Dollars, FCA San Carlos, California.
Prices are subject to change without notice.
Higher quantity and OEM discounts are available.

Payment:

Visa, MasterCard, Amex, Prepayment before shipment, or Net 30 days (subject to credit acceptance).

Delivery:

Stock to 90 days, depending on quantity.