. Author manuscript; available in PMC: 2022 Aug 9.

Published in final edited form as: IEEE Trans Neural Syst Rehabil Eng. 2021 Oct 13;29:2067–2075. doi: 10.1109/TNSRE.2021.3117518

TABLE I.

Minimally Invasive Bladder Pressure Sensor (MIBP) Specifications

Symbol	Measured/nominal value
MIBP dimensions	5 mm diameter, 13.5 cm straightened length
Pressure sampling rate	75 Hz
Pressure transmission rate	10 Hz
Pressure sensor bandwidth	0.5 Hz
Pressure range^a	0 – 250 cm H₂O
Pressure resolution	24 bit
Pressure error^a (0-250 cmH₂O)	7.8 cm H₂O RMS
(0-100 cmH₂O)	0.9 cm H₂O RMS
Transmission distance	30 cm, using 8-cm loop antenna
Wireless wakeup distance	20 cm, using 10-W transmission pulse
Current draw, average in measure mode	86 μA
Peak current draw in radio transmission	2.2 mA
Current draw, average in sleep mode	2.3 μA
Battery lifespan in measure mode	290 hours
Battery lifespan in sleep mode, estimated	452 days

Represents deviation from straight-line fit over limited range of testing for packaged pressure sensor.