Spring-Loaded Position Sensors

With maximum linearity error of ± 0.1 percent of full-scale output, Macro Sensors’ GHSE/GHSER 750 Series 24V spring-loaded position sensors are available in ranges of 0.1" (2.5 mm) to 4" (100 mm). Used for position measurement in gaging applications, each unit consists of a spring-loaded sleeve bearing that provides repeatability of 0.000025" (0.6 micronmeters). Along with a 1/2-20 threaded front end, the spring-loaded assembly eases setup on automated machinery, the company says. Electrical termination of the GHSE 750 model is made through a sealed axial connector, while electrical termination for the GHSER 750 is through a radially mounted, sealed connector.


The probe shaft is extended with a spring that exerts a nominal force ranging from 6 to 20 oz., depending on total range. The probe shaft fully extends when pressurized by air, and it retracts to get out of the way during loading/unloading operations or to provide clearance for products on an assembly line. The sensors’ output is designed to operate with most PLCs, digital indicators and data-acquisition systems. According to the company, the hermetically sealed gaging probes can withstand the effects of dirt, water, steam and other corrosive elements without affecting performance.

Editor Pick

Optical Micrometer Serves Bearing Maker as Alternative to CMM, Comparative Gaging

The Timken Co. has achieved great success manufacturing roller bearings over many decades. But with many bearing products comes many part geometries that have to be measured with high precision. Optical micrometry has proven to be a precise solution.