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Measurement Processor

Assembly

A low-power microcontroller that excites the eddy-current coils, measures the impedance change, linearizes the gap-to-thickness relationship, and computes a real-time reading. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Measurement Processor parts and their functions

5 top-level parts · 24 parts in total · full bill of materials below
Measurement Processor parts diagram: 1 microcontroller, 2 oscillator crystal, 3 transimpedance amplifier, 4 ADC front-end, 5 SMD passive (R/C/L). 24 parts in 5 top-level items.
Measurement Processor parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Microcontroller 1× ARM or 8-bit MCU with ADC
2 Oscillator Crystal 1× 1–5 MHz clock crystal for coil drive
3 Transimpedance Amplifier 1× Transimpedance amplifier for coil signal
4 ADC Front-End 1× Anti-alias filter and instrumentation amplifier
5 SMD Passive (R/C/L) 20× Biasing, filtering, and timing network

3D model

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Build & assembly graph

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Bill of materials for Measurement Processor

5 top-level lines · 5 rows shown · 24 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Microcontroller mcu 1× 1 · part
2 Oscillator Crystal ptg-oscillator 1× 1 · part
3 Transimpedance Amplifier ptg-transimpedance-amp 1× 1 · part
4 ADC Front-End ptg-adc-frontend 1× 1 · part
5 SMD Passive (R/C/L) smd-passives 20× 20 · part

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Where the measurement processor 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