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Often referred to as string pot, yo-yo pot, draw wire transducer, cable extension transducer, cable actuated transducer, UniMeasure extending wire rope linear position transducers have proven to be an attractive approach for a multitude of applications in many different industries.
The ZX stringpot models offer a 1.5” (38mm) displacement measurement range in an extremely compact LVDT package. Utilizing a long life co-molded potentiometer with essentially infinite resolution, model ZX-PA-1.5 is the world’s smallest stringpot.
With dimensions of .73 x .73 x .375, the UniMeasure ZX-PA Series is the world’s smallest stringpot. With a total measurement range of 1.5” (38 mm), a wide operating temperature range and long cycle life, the ZX-PA-1.5 is perfect for applications where space is at an absolute premium and maximum performance is required.
This engineering guide reviews the advantages and disadvantages of string potentiometers and string encoders, hereafter referred to as CPTs (cable position transducers -- see Sidebar 1 below for other terms). By understanding the strengths and weaknesses of CPT technology, designers, engineers, and technicians can specify and design the best ...
Draw-wire sensors, also called string potentiometers, string encoders, or draw wire transducers, are compact devices used for accurately measuring an object’s position and speed along a linear system.
Measuring linear position with string pots. A string potentiometer, sometimes also known as a string pot, a draw wire senor, a string encoder or a yo yo pot, is a cable actuated position sensor used to detect and measure linear position and velocity using a flexible cable and a spring-loaded spool.
The UniMeasure LX-PA Series linear position transducer with analog output is a low cost, compact alternative for use in light to moderate duty applications in dry environments. The plastic bodied device is ideal for high volume OEM situations where cost is a major consideration and in applications
