Many heitherto reported compressive piezoresistive foam sensors suffer from variable sensitivity over large compression range, limiting the applicability of the sensor for a narrow range of motion. This is because the area of contact between conductive foam struts is very small and varies linearly over only a small compression range. We resolved this problem by fabricating an ultracompressive foam sensor with large area conductive flakes using facile technique of soak-drying Melamine foam with the conducting aqueous RGO-CNT ink. Sensor exhibited a constant gauge factor (GF) 1.6 over a large and highly linear compression range (∼2% to 60 %) and detected both small and large body movements with superior detectability. Besides that all vital features of a tiny signal such as pulse waveform were delineated due to the excellent low pressure (<5 kPa) sensitivity 0.22 kPa⁻¹ and the small relaxation time of 19 ms. The sensor showed a stable and repeatable performance over 11000 cycles. Its operation is also tested over a wide range of ambient temperature (-7 $℃$ to 140 $℃)$ and humidity (25%–82%, RH) and even under water with no major deterioration in performance.

许多迄今为止报道的压缩压阻泡沫传感器在大压缩范围内灵敏度可变，限制了传感器在窄运动范围内的适用性。这是因为导电泡沫支柱之间的接触面积非常小，并且仅在很小的压缩范围内线性变化。我们通过使用导电水性 RGO-CNT 墨水浸泡干燥三聚氰胺泡沫的简便技术制造具有大面积导电薄片的超压缩泡沫传感器解决了这个问题。传感器在大且高度线性的压缩范围（~2% 至 60%）内表现出恒定的应变系数 (GF) 1.6，并以卓越的可检测性检测到大小不一的身体运动。此外，由于极好的低压（<⁻¹和 19 ms 的小弛豫时间。该传感器在 11000 次循环中表现出稳定且可重复的性能。它还在很宽的环境温度范围内（-7$℃$ 到 140 $℃)$ 和湿度（25%–82%，相对湿度），甚至在水下，性能也没有明显下降。