The world has seven continents, each with its highest mountain peak. It is becoming more and more popular for climbers to try and climb all seven summits, which are also known as the Seven Sisters. Only a handful of people has succeeded. To reach the top of any of these is a huge achievement.
A load cell is a transducer that is used to create an electrical signal whose magnitude is directly proportional to the force being measured. The various load cell types include hydraulic, pneumatic, and strain gauge.
Hydraulic load cells use a conventional piston and cylinder arrangement to convey a change in pressure by the movement of the piston and a diaphragm arrangement which produces a change in the pressure on a Bourdon tube connected with the load cells. Diagram of a Hydraulic Load Cell from Nikkaâs Rocketry.