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SRI 6000 Series Programmable Josephson Voltage Standard (PJVS)

Technical Contact: paul.dresselhaus [at] nist.gov (Paul Dresselhaus)

SRI 6000 Series Programmable Josephson Voltage Standard (PJVS)

The Programmable Josephson voltage standard (PJVS) is an instrument that generates stable, quantum-accurate, direct-current (DC) voltages that are programmable over the range from -10 volts to +10 volts. The quantum accuracy of these voltages is derived from the Josephson Effect such that every superconducting Josephson junction in the PJVS circuit produces a voltage precisely proportional to the frequency of the applied microwave bias signal.

The PJVS with its quantum accurate dc voltages can serve as a primary voltage standard with accuracy of parts in 1010(determined through intercomparison with another quantum voltage standard) or as a stable, programmable source for precision measurements, metrology experiments or calibrations. For example, the PJVS can be used to calibrate Zener references (typically parts in 107 depending on the measurement instruments and Zener noise) as well as the amplitude-dependent gain and linearity of digital voltage meters.

The PJVS is also capable of generating stepwise-approximated waveforms or sine waves with a rise time between voltage steps that is less than 2 microseconds. The AC voltage of the stepwise waveforms do not have quantum accuracy because the transitions between the steps are bias dependent. A differential-sampling measurement technique with an integrating sampling digital voltmeter is used with the step-wise waveforms to calibrate the ac voltage of commercial voltage calibration sources at frequencies up to a few hundred hertz with a typical measurement uncertainty of parts in 107, depending on the phase and amplitude stability of the source.

Specifications Certificate (PDF format)

Standard Configurations:

The prices listed below are for the individual instrument and do not include costs related to the final measurement calibration performed before delivery or post-delivery installation and training.  The related Calibration Service ID for the SRI is 53110S.  To obtain a nist-quote for the instrument and calibration services, please contact Sales and Customer Service by phone at 301-975-2200 or email at srminfo [at] nist.gov.

6000e

Cryo-cooled 10V PJVS, with water-cooled compressor

$307,900

6000f

Cryo-cooled 10V PJVS, with water-cooled compressor (US GSA Authorized)

$282,700

6000h

Cryo-cooled 10V PJVS, with water-cooled compressor, without synthesizer

$262,400

6000i

Cryo-cooled 10V PJVS, with air-cooled compressor

$309,700

6000j

Cryo-cooled 10V PJVS, with air-cooled compressor (US GSA Authorized)

$284,500

6000l

Cryo-cooled 10V PJVS, with air-cooled compressor, without synthesizer

$264,200

6000m

Cryopackaged 10V PJVS chip

$50,000

6000n

Cryopackaged 2V PJVS chip

$26,000

6000o

Upgrade existing NIST-installed Liquid-helium-cooled PJVS to Cryocooler with water-cooled compressor

$112,700

6000p

Upgrade existing NIST-installed Liquid-helium-cooled PJVS to Cryocooler with air-cooled compressor

$114,500

6000q

Liquid helium-cooled 10V PJVS without dewar

$223,600

6000r

Liquid helium-cooled 10V PJVS (US GSA Authorized) without dewar

$198,400

6000t

Liquid-helium-cooled 10V PJVS System, without synthesizer or dewar

$178,100

6000a Liquid helium-cooled 10V PJVS Superseded by SRI 6000q
6000b Liquid helium-cooled 10V PJVS (US GSA Authorized) Superseded by SRI 6000r
6000c Liquid helium-cooled 10V PJVS, with compact microwave synthesizer Superseded by SRI 6000t
6000d Liquid helium-cooled 10V PJVS, without synthesizer Superseded by SRI 6000t
6000g Cryo-cooled 10V PJVS, with water-cooled compressor, with compact synthesizer Superseded by SRI 6000h
6000k Cryo-cooled 10V PJVS, with air-cooled compressor, with compact synthesizer for traveling Superseded by SRI 6000l
6000s Liquid-helium-cooled 10V PJVS System, compact synthesizer for traveling, without dewar Superseded by SRI 6000t
6000v Cryopackaged 1V ACJVS chip Superseded by SRI 6011
6000w ACJVS Software Superseded by SRI 6011
6000x Liquid Helium Cryoprobe for ACJVS  Superseded by SRI 6011 
6000u Liquid-helium-cooled 10V PJVS System, without  synthesizer, dewar, amplifier, cryoprobe, nanovoltmer, bias electronics and controller Discontinued
6000y Low leakage current bias electronics and measurements UPGRADE Discontinued

 

Created September 28, 2016, Updated September 5, 2019