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.

Tech Support

	Part No.	Description	Qty	Price
NPCT - In-flange, for UHV installation in the beam line
Checkbox	NPCT-CF2″1/8-22.4-120-UHV	In-flange NPCT 22.2-mm ID, DN/NW25CF, 120mm axial	Quantity	$63,830.00 Select Product	Description In-flange NPCT 22.2-mm ID, DN/NW25CF, 120mm axial Select Product Qty Select Quantity
Checkbox	NPCT-CF2″3/4-34.9-120-UHV	In-flange NPCT 34.9-mm ID, DN/NW40CF, 120mm axial	Quantity	$66,250.00 Select Product	Description In-flange NPCT 34.9-mm ID, DN/NW40CF, 120mm axial Select Product Qty Select Quantity
Checkbox	NPCT-CF3″3/8-38.0-120-UHV	In-flange NPCT 38.0-mm ID, DN/NW50CF, 120mm axial	Quantity	$68,440.00 Select Product	Description In-flange NPCT 38.0-mm ID, DN/NW50CF, 120mm axial Select Product Qty Select Quantity
Checkbox	NPCT-CF4″1/2-47.7-120-UHV	In-flange NPCT 47.7-mm ID, DN/NW63CF, 120mm axial	Quantity	$73,630.00 Select Product	Description In-flange NPCT 47.7-mm ID, DN/NW63CF, 120mm axial Select Product Qty Select Quantity
Checkbox	NPCT-CF4″1/2-60.4-120-UHV	In-flange NPCT 60.4-mm ID, DN/NW63CF, 120mm axial	Quantity	$83,930.00 Select Product	Description In-flange NPCT 60.4-mm ID, DN/NW63CF, 120mm axial Select Product Qty Select Quantity
Checkbox	NPCT-CF41/2″-96.0-120-UHV	In-flange NPCT 96.0-mm ID, DN/NW63CF, 120mm axial	Quantity	$83,930.00 Select Product	Description In-flange NPCT 96.0-mm ID, DN/NW63CF, 120mm axial Select Product Qty Select Quantity
Checkbox	NPCT-CF6″-96.0-120-UHV	In-flange NPCT 96.0-mm ID, DN/NW100CF, 120mm axial	Quantity	$90,310.00 Select Product	Description In-flange NPCT 96.0-mm ID, DN/NW100CF, 120mm axial Select Product Qty Select Quantity
Checkbox	NPCT-CF8″-147.6-120-UHV	In-flange NPCT 147.6-mm ID, DN/NW160CF, 120mm axial	Quantity	$129,560.00 Select Product	Description In-flange NPCT 147.6-mm ID, DN/NW160CF, 120mm axial Select Product Qty Select Quantity
Checkbox	NPCT-CF10″-198.4-120-UHV	In-flange NPCT 198.4-mm ID, DN/NW200CF, 120mm axial	Quantity	$161,740.00 Select Product	Description In-flange NPCT 198.4-mm ID, DN/NW200CF, 120mm axial Select Product Qty Select Quantity

NPCT - In-flange - Options
Select Product	NPCT-CF-ARB#xxx	Non-round, arbitrary shape aperture option	Select Quantity	$2,930.00	Description Non-round, arbitrary shape aperture option Qty Select Quantity
Select Product	NPCT-CF-316LN	AISI 316LN option, instead of 304	Select Quantity	$2,270.00	Description AISI 316LN option, instead of 304 Qty Select Quantity
Select Product	NPCT-CF-CXXX	Interconnect cable length, price/meter (max 130 meter)	Select Quantity	$70.00	Description Interconnect cable length, price/meter (max 130 meter) Qty Select Quantity
Select Product	NPCT-CF-RHCXXX	Siltem® interconnect, IEC 544-4 radiation index >7, price/meter (max 130 meter)	Select Quantity	$100.00	Description Siltem® interconnect, IEC 544-4 radiation index >7, price/meter (max 130 meter) Qty Select Quantity
Select Product	NPCT-CF-HR	High-resolution sensor option	Select Quantity	$18,790.00	Description High-resolution sensor option Qty Select Quantity
Select Product	NPCT-CF-VHR	Very high-resolution sensor option	Select Quantity	$28,910.00	Description Very high-resolution sensor option Qty Select Quantity
Select Product	NPCT-CF-PS	Power supply on a board for NPCT chassis	Select Quantity	$550.00	Description Power supply on a board for NPCT chassis Qty Select Quantity
Select Product	NPCT-CF-SR	Special range option	Select Quantity	$1,280.00	Description Special range option Qty Select Quantity
Select Product	NPCT-CF-H	Radiation-resistant sensor option	Select Quantity	$1,940.00	Description Radiation-resistant sensor option Qty Select Quantity

NPCT - No flange, for installation over the vacuum chamber
Select Product	NPCT-055	New-PCT sensor, >55mm ID	Select quantity	$44,850.00	Description New-PCT sensor, >55mm ID Qty Select quantity
Select Product	NPCT-075	New-PCT sensor, >75mm ID	Select quantity	$46,540.00	Description New-PCT sensor, >75mm ID Qty Select quantity
Select Product	NPCT-115	New-PCT sensor, >115mm ID	Select quantity	$49,560.00	Description New-PCT sensor, >115mm ID Qty Select quantity
Select Product	NPCT-130	New-PCT sensor, >130mm ID	Select quantity	$50,750.00	Description New-PCT sensor, >130mm ID Qty Select quantity
Select Product	NPCT-175	New-PCT sensor, >175mm ID	Select quantity	$55,250.00	Description New-PCT sensor, >175mm ID Qty Select quantity
Select Product	NPCT-195	New-PCT sensor, >195mm ID	Select quantity	$56,520.00	Description New-PCT sensor, >195mm ID Qty Select quantity
Select Product	NPCT-202	New-PCT sensor, >202mm ID	Select quantity	$58,770.00	Description New-PCT sensor, >202mm ID Qty Select quantity
Select Product	NPCT-245	New-PCT sensor, >245mm ID	Select quantity	$63,050.00	Description New-PCT sensor, >245mm ID Qty Select quantity
Select Product	NPCT-255	New-PCT sensor, >255mm ID	Select quantity	$63,450.00	Description New-PCT sensor, >255mm ID Qty Select quantity

NPCT - No flange - Options
Select Product	NPCT-CXXX	Interconnect cable length, price/meter (max 130 meter)	Select quantity	$70.00	Description Interconnect cable length, price/meter (max 130 meter) Qty Select Quantity
Select Product	NPCT-RHCXXX	Siltem® interconnect, IEC 544-4 radiation index >7, price/meter (max 130 meter)	Select quantity	$100.00	Description Siltem® interconnect, IEC 544-4 radiation index >7, price/meter (max 130 meter) Qty Select Quantity
Select Product	NPCT-HR	High-resolution sensor option	Select quantity	$18,790.00	Description High-resolution sensor option Qty Select Quantity
Select Product	NPCT-VHR	Very high-resolution sensor option	Select quantity	$28,910.00	Description Very high-resolution sensor option Qty Select Quantity
Select Product	NPCT-H	Radiation-resistant sensor option	Select quantity	$1,940.00	Description Radiation-resistant sensor option Qty Select Quantity
Select Product	NPCT-SR	Special ranges option	Select quantity	$1,280.00	Description Special ranges option Qty Select Quantity
Select Product	NPCT-PS	Power supply on a board for NPCT chassis	Select quantity	$550.00	Description Power supply on a board for NPCT chassis Qty Select Quantity

Quantity Discount Schedule:
Quantity	3 – 5	6 – 9	10 – 24
Discount	3%	5%	7%

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.

Features

Applications

Tech Support

NPCT - In-flange, for UHV installation in the beam line

NPCT - In-flange - Options

NPCT - No flange, for installation over the vacuum chamber

NPCT - No flange - Options

Terms and Conditions

Terms and Conditions:

Payment:

Delivery:

Quote Request