Title
Standard for Voltage Unit: Development of National Standard for Voltage Unit Based on SolidState References,Used
Delivery time: 8-12 business days (International)
Many national metrology institutes (NMIs) employ the Josephson effect for maintenance of the representation of the voltage unit. The Josephson effect voltage standard (JVS) is the most stable and reproducible representation of the volt. In smaller national laboratories the voltage standards are frequently maintained in electrochemical cells or solidstate references, socalled secondary standards, which are less expensive for establishment and maintenance. The measurement uncertainty (k=2) of the voltage standards maintained in electronic references is typically less than 1 V/V. This can be achieved by maintenance of the group of voltage standards, whose outputs are regularly compared to the average of the whole group.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.