BOMwiki the bill-of-materials encyclopedia
30,454,201 parts mapped · 193,225 items
Discussion History

Auto-Balance Bridge

Assembly

AC bridge with programmable impedance arms achieving zero balance at unknown component. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Auto-Balance Bridge parts and their functions

4 top-level parts · 4 parts in total · full bill of materials below
Auto-Balance Bridge parts diagram: 1 reference impedance arm, 2 variable impedance network, 3 null detector, 4 kelvin four-wire adapter. 4 parts in 4 top-level items.
Auto-Balance Bridge parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Reference Impedance Arm 1× Precision 1 kΩ / 1 mH decade box calibrated to ±0.1% standard.
2 Variable Impedance Network 1× Digitally-controlled resistance and inductance matrix (via relays) spanning 10 Ω to 10 MΩ.
3 Null Detector 1× Phase-sensitive detector outputting error voltage proportional to impedance mismatch.
4 Kelvin Four-Wire Adapter 1× Test connection points supporting 2-wire or 4-wire (Kelvin) fixture modes to eliminate lead resistance.

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Auto-Balance Bridge

4 top-level lines · 4 rows shown · 4 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Reference Impedance Arm lcr-meter-fixed-arm 1× 1 · part
2 Variable Impedance Network lcr-meter-programmable-arm 1× 1 · part
3 Null Detector lcr-meter-balance-detector 1× 1 · part
4 Kelvin Four-Wire Adapter lcr-meter-kelvin-fixture-connection 1× 1 · part

Something wrong in this list? Report a problem with this BOM.

Where the auto-balance bridge is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗
Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
flex.com ↗ Singapore Electronics contract mfg 1,000 pcs 6–10 wks
dixoninfo.com ↗ Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
bydelectronic.com ↗ Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗
Singapore Electronics contract mfg 1,000 pcs 6–10 wks