Strain gauges
About the Strain gauges PCB
Strain gauges is an open source PCB design by waterloo-rocketry, published on GitHub. It is a 2-layer board measuring 97.8 × 54.6 mm, with 37 components from 20 distinct parts.
Other key parts include the LT1460-10, INA126, TL780-15 and LT1006. By type, the board carries 11 resistors, 9 capacitors, 8 connectors, 7 ICs, 1 transistor and 1 fuse.
It belongs with the sensors designs in this gallery.
From the project
Data Acquisition schematics, boards, datasheets, docs, and software
Work in progress repo for the next iteration of the WR DAQ. This revision focuses on modularity and extensibility, with the ability to easily add more sensors as required. Schematics of the last revision are in old/. The new system supports the following: Strain gauges 12V pressure transducers thermistors/RTDs based on need SD card logging using an Arduino * Logging to an NI DAQ instrumentation module
Main components on the Strain gauges
Strain gauges bill of materials (BOM)
37 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LT1460-10 | TO-92_Inline_Narrow_Oval | U1 |
| 4 | INA126 | DIP-8_W7.62mm | U2, U3, U4, U5 |
| 1 | TL780-15 | TO-220-3_Vertical | U6 |
| 1 | LT1006 | DIP-8_W7.62mm | U7 |
| 1 | 2N3096 | TO-92_Inline_Narrow_Oval | Q1 |
| 2 | Conn_01x03 | PhoenixContact_MCV-G_03x3.50mm_Vertical | J1, J2 |
| 1 | Conn_01x08 | PhoenixContact_MCV-G_08x3.50mm_Vertical | J3 |
| 4 | Conn_01x04_swapped | PhoenixContact_MCV-G_04x3.50mm_Vertical | J4, J5, J6, J7 |
| 1 | CONN_01X02 | PhoenixContact_MCV-G_02x3.50mm_Vertical | P1 |
| 1 | Fuse | Fuse_1206_3216Metric_Pad1.24x1.80mm_HandSolder | F1 |
| 1 | 2uF | CP_Radial_Tantal_D5.0mm_P2.50mm | C1 |
| 5 | 0.1uF | C_0805_HandSoldering | C2, C3, C5, C6, C9 |
| 1 | 47uF | CP_Radial_Tantal_D6.0mm_P2.50mm | C4 |
| 1 | 330 nF | C_0805_HandSoldering | C7 |
| 1 | 220 nF | C_0805_HandSoldering | C8 |
| 1 | 220 | R_0805_HandSoldering | R1 |
| 4 | R | R_0805_HandSoldering | R2, R3, R4, R5 |
| 3 | 10K | R_0805_HandSoldering | R6, R7, R9 |
| 2 | 20K | R_0805_HandSoldering | R8, R11 |
| 1 | 270K | R_0805_HandSoldering | R10 |
Strain gauges design files
The KiCad project lives in the waterloo-rocketry/daq repository on GitHub; these links point at the commit this page was built from.
Strain gauges: common questions
How big is the Strain gauges PCB?
The Strain gauges measures 97.8 × 54.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Strain gauges?
37 components, from 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the Strain gauges design files?
From the waterloo-rocketry/daq repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Strain gauges design in my own project?
The repository has no license, so all rights stay with waterloo-rocketry. Use it as a reference, and ask the author before reusing the design.
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