Abstract
A simple device was developed for measuring pressure in thin–walled collapsible emitting hose or tubing in the field. The device, called a “Squeezer,” senses pressure by measuring the force necessary to compress a short section of tubing between two parallel plates to 50% of its original diameter. The force can be measured by either an electronic load cell or a spring balance, and the output, calibrated for a particular size of tubing, read directly in pressure units. The device provides a convenient, non–intrusive and low–cost means for irrigators to assess pressure variations within their microirrigation laterals without installing special fittings or puncturing the tubing.
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