Evaluate pressure sensor for low pressure and O2 compliant

icub-tech-iit / ventilator-FI5

FI5: Rapidly Manufactured Ventilator System

BSD 3-Clause "New" or "Revised" License

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Evaluate pressure sensor for low pressure and O2 compliant #22

Closed MrAndrea closed 4 years ago

MrAndrea commented 4 years ago

This issue to investigate suitable pressure sensors for measure the Air-O2 mixture in the ventilator. The pressure to measure is low (<1bar) and the resolution and sensitivity should be good for the application (0-40mBar). It will be useful investigate also pressure sensor module.

MrAndrea commented 4 years ago

Here something available on Mouser with maximum pressure about 1Bar.

Digital sensors

Honeywell HSCDANN001BG2A5: I2C, 12bit resolution, 1% precision, 0-1Bar, 5V, SMD-8, ~40€
Honeywell HSCMANN001BA2A3: I2C, 12bit resolution, 1% precision, 0-1Bar, 3.3V, SMD-8, ~40€
Honeywell ABPDRRV600MGSA3: Dual ports, SPI, 12bit resolution, +/- 0.25 precision, 0-600mBar, 3.3V, DIP-6, ~12€

Analog sensor

Honeywell ABPLLNN600MGAA3: analog output, 0.25% precision, 0-600mbar, 3V
Honeywell HSCDANN1.6BAAA5: analog output,1% precision, 0-1.6bar, 5V, DIP-8
Smartec SPD005G: max 35kPa (350mBar)
...

Module

HX710B Pressure Sensor Module: 0-40kPa (0-400mBar): serial interface, 5V
...

simeonedussoni commented 4 years ago

Just for commodity I put a small converting table for pressures:

1mBar = 0.1kPa = 0.0145 PSI

mBar	kPa	PSI
10	1	0.145
20	2	0.29
40	4	0.58

MrAndrea commented 4 years ago

After 1st April meeting, we look for digital pressure sensor in the 0-100mbar range. Here some proposal.

Honeywell ABPDLNN100MG2A3 I2C, 100mbar, 12 bit, 10% to 90%, 3.3V, Barbless, Total error ±1.5%FSS
Honeywell ABPDANN005PG2A3 I2C, 350mbar (5 PSI), 10% to 90%, 3.3V, Barbed
Honeywell ABPDRRV060MGSA3 SPI, 0-60mbar, 12 bit, +/-0.25% precision

Honeywell ASDX001D44R not available anymore, use is the Medtronic ventilator. Characteristics: differential sensor, SPI bus, 0-70mbar (0-1psi), 12 bit, precision 2%

MrAndrea commented 4 years ago

Honeywell offers two useful series:

Basic ABP Series ±60 mbar to ±10 bar | ±6 kPa to ±1 MPa | ±1 psi to ±150 psi The ABP Series are piezoresistive silicon pressure sensors offering a ratiometric analog or digital output for reading pressure over the specified full scale pressure span and temperature range.
TruStability HSC Series ±1.6 mbar to ±10 bar | ±160 Pa to ±1 MPa | ±0.5 inH20 to ±150 psi Piezoresistive silicon pressure sensor offering a ratiometric analog or digital output for reading pressure over the specified full scale pressure span and temperature range. These sensors measure absolute, gage, or differential pressures.

maggia80 commented 4 years ago

we defined the two sensors for the proto0:

HSCDANN010BGAA5 0-10 BAR

HSCMAND160MD2A5 +-160mbar