- Stable within ±0.01% per year
- 18 Models values from 1 µH to 10 H
- Low, known temperature coefficient
- 3 year warranty included
- Calibration accredited to ISO-17025 included
- Minimized connection errors
- Toroidal - free from external fields
The GenRad 1482 Standard Inductors are the standard of choice in metrology labs. Used today by national metrology institutes and primary standards bodies around the world, these inductors have no peer or equivlent.
IET continues to produce the 1482 standard inductors to the same exacting specs as General Radio. These standard inductors are accurate, highly stable standards of self inductance for use as a low frequency reference of working standard in the laboratory.
Records extending over 30 years, including those of standard inductors that traveled to national laboratories in several countries for calibration, show long-term stability well within ±0.01%.
Each standard inductor is a uniformly wound toroid on a ceramic core. It has a negligible external magnetic field and hence essentially no pickup from external fields. The inductor is resiliently supported in a mixture of ground cork and silica gel, after which the whole assembly is cast with potting compound into a cubical aluminum case.
Sizes of 500 µH and above have three terminals, two for the inductor leads and the third connected to the case, to provide either a two- or three terminal standard. The 50-, 100-, and 200 µH sizes have three additional terminals for the switching used to minimize connection errors.
For comparing other inductors with these standards, the 1689 or 1693 Digibridge is recommended.
IET continues to produce the 1482 standard inductors to the same exacting specs as General Radio. These standard inductors are accurate, highly stable standards of self inductance for use as a low frequency reference of working standard in the laboratory.
Records extending over 30 years, including those of standard inductors that traveled to national laboratories in several countries for calibration, show long-term stability well within ±0.01%.
Each standard inductor is a uniformly wound toroid on a ceramic core. It has a negligible external magnetic field and hence essentially no pickup from external fields. The inductor is resiliently supported in a mixture of ground cork and silica gel, after which the whole assembly is cast with potting compound into a cubical aluminum case.
Sizes of 500 µH and above have three terminals, two for the inductor leads and the third connected to the case, to provide either a two- or three terminal standard. The 50-, 100-, and 200 µH sizes have three additional terminals for the switching used to minimize connection errors.
For comparing other inductors with these standards, the 1689 or 1693 Digibridge is recommended.
THÔNG SỐ CƠ BẢN (Thông số kỹ thuật đầy đủ có thể được tìm thấy trên bảng dữ liệu)
Hiệu chuẩn: Giấy chứng nhận hiệu chuẩn được công nhận bởi A2LA đến ISO-17025 được cung cấp với mỗi đơn vị, cho các giá trị đo được về điện cảm ở 100, 200, 400 và 1000 Hz, với các điều kiện thử nghiệm và phương pháp đo được chỉ định. Các giá trị này thu được bằng cách so sánh, với độ chính xác, thông thường, tốt hơn 0,005%, với các tiêu chuẩn có giá trị tuyệt đối, theo dõi hệ thống đơn vị quốc tế (SI), được biết đến với độ chính xác (0,02% + 0,1μH) ở 100 Hz; (0,1% + 0,1 μH cho 1482-B).
Tính ổn định : Thay đổi điện cảm nhỏ hơn 0,01% mỗi năm.
