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Pendulum Compensator

Assembly

Wire-suspended prism pendulum in the optical path that swings under gravity to hold the line of sight horizontal within ±0.3 arcseconds once the instrument is roughly leveled. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Pendulum Compensator parts and their functions

6 top-level parts · 10 parts in total · full bill of materials below
Pendulum Compensator parts diagram: 1 compensator prism, 2 prism carrier, 3 suspension wires, 4 damper vane, 5 neodymium magnet, 6 pendulum limit stop. 10 parts in 6 top-level items.
Pendulum Compensator parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Compensator Prism 1× Roof prism hung in the light path; its gravity-defined rest position bends the optical axis exactly horizontal despite residual instrument tilt.
2 Prism Carrier 1× Lightweight pendulum frame that carries the prism and the damper vane.
3 Suspension Wires 4× Crossed flexure suspension
4 Damper Vane 1× Copper vane on the pendulum that moves through the magnet gap; induced eddy currents settle the swing in under a second.
5 Neodymium Magnet 2× Eddy-current damping magnets
6 Pendulum Limit Stop 1× Mechanical stop that confines pendulum travel to its ±15 arcminute working range and protects the wires in transport.

3D model

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Build & assembly graph

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Bill of materials for Pendulum Compensator

6 top-level lines · 6 rows shown · 10 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Compensator Prism surveying-level-compensator-prism 1× 1 · part
2 Prism Carrier surveying-level-prism-carrier 1× 1 · part
3 Suspension Wires surveying-level-suspension-wires 4× 4 · part
4 Damper Vane surveying-level-damper-vane 1× 1 · part
5 Neodymium Magnet neodymium-magnet 2× 2 · part
6 Pendulum Limit Stop surveying-level-limit-stop 1× 1 · part

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Where the pendulum compensator 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