Patent ID: 9562802
Date: 2017-02-07
CPC Classifications: G01G,G01L

Claim:
1. A load cell comprising: a bar having a supported end, an unsupported end and a sensor holding portion disposed between the supported end and the unsupported end; a plurality of electronic sensors including a first strain gauge pair and a second strain gauge pair disposed along the sensor holding portion; and an interface member directly connecting the electronic sensors for weight calculation responsive to application of a load to the unsupported end, wherein the interface member comprises a flex circuit including a potentiometer, wherein the interface member is disposed entirely on the bar, wherein the interface member includes conductive traces disposed on a flexible substrate, the flexible substrate being adhered to the sensor holding portion, wherein the conductive traces extend away from a hub portion of the interface member to pad portions operably coupled to a respective one of the plurality of electronic sensors and the pad portions and the electronic sensors are disposed at corresponding ends of arms of the interface member to couple the first strain gauge pair and the second strain gauge pair to complete a Wheatstone bridge, and wherein the hub portion includes the potentiometer.