# A Manganin Foil Sensor for Small Uniaxial Stress

## TL;DR

This paper introduces a straightforward manganin foil resistance manometer capable of measuring small uniaxial stresses across various temperatures without requiring temperature seasoning, though limited by shear stress-induced irreversibility.

## Contribution

It presents a simple, effective design for a uniaxial stress sensor that operates at low pressures and temperatures, with insights into its prestress limitations.

## Key findings

- Operates effectively at low pressures and temperatures
- No temperature seasoning needed for operation
- Limited by shear stress irreversibility

## Abstract

We describe a simple manganin foil resistance manometer for uniaxial stress measurements. The manometer functions at low pressures and over a range of temperatures. In this design no temperature seasoning is necessary, although the manometer must be prestressed to the upper end of the desired pressure range. The prestress pressure cannot be increased arbitrarily; irreversibility arising from shear stress limits its range. Attempting larger pressures yields irreproducible resistance measurements.