Why the ΩhmRanger-LCV® ?

You need to measure the resistance of a component, but that component is delicate.  Most ohmmeters will apply a stimulus voltage to the Device Under Test (DUT) of 3-10V.  This stimulus voltage may destroy what you are trying to investigate!  The solution is a Low Compliance Voltage ohmmeter, where the stimulus voltage is small, and regulated.  With the ΩhmRanger-LCV®, stimulus voltage is always less than 400mV.

For Example...

The Josephson Junction is the Quantum Computer's equivalent of a 'transistor'.  Although it is delicate, the ΩhmRanger-LCV® can measure it's resistance without risking it's integrity.

D-Wave Systems, the Quantum Computing systems and services company, needs to measure the resistance of their Josephson Junctions.  Working closely, a prototype Low Compliance Voltage Ohmmeter was quickly developed and the design was subsequently refined through testing and practical lab use.  The result is the  ΩhmRanger-LCV®, the low compliance voltage ohmmeter, scheduled for general release in late March 2022.

On completion of test and evaluation, D-Wave commented;

"The AltoNovus ΩhmRanger-LCV® turned an error-prone measurement into a simple measurement  .....  a valuable addition to our work building quantum computers."

"The fundamental element in D-Wave’s unique product is a Josephson Junction - this is the "transistor" in a quantum computer.  In practice, these devices are extremely sensitive and easy to damage.  Measuring the resistance with a standard multimeter will destroy the Josephson Junction.

The AltoNovus ΩhmRangerLCV® turned an error-prone measurement into a simple measurement.  The low compliance voltage ensures that the device under test never sees a stimulus above 400mV.  The ΩhmRanger-LCV® measures a wide resistance range, and the upper end of the range (400MOhm) ΩhmRanger-LCV® makes it simple.  This, in addition to a nice group of features, including a quality metric - signal-to-noise, continual indication of the stimulus voltage, and a cute mode for measuring microscopic pins while looking through a microscope, makes this device a valuable addition to our work building quantum computers."

AltoNovus is delighted to work with D-Wave in refining this exciting product:

Individually factory-calibrated, ΩhmRanger-LCV® measures from >100M down to 10 Ohms, with errors <1% across the range.  It has: 

• 2 low stimulus voltages:
• Approx 380mV (default), and
• Approx 205mV. 
• Stimulus voltage at the output terminal is limited by the maximum current supply of approx 20mA. 
• A configurable audible signal to inform the operator that a stable reading has been achieved.
• A fully isolated USB interface for device control and data export.  Being fully isolated means attaching a USB cable should not affect your measurements.

WHAT'S IN THE BOX?

It'll just be the ΩhmRanger-LCV®!   We do not currently supply 2 x AA batteries, Probes, or Carry Cases.  

ΩhmRanger-LCV® can be ordered, in our Store.