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How do you use a strain gauge to measure weight?
A Strain gauge (sometimes refered to as a Strain gage) is a sensor whose resistance varies with applied force; It converts force, pressure, tension, weight, etc., into a change in electrical resistance which can then be measured. When external forces are applied to a stationary object, stress and strain are the result.
What is load measurement?
A Force Sensor is defined as a transducer that converts an input mechanical load, weight, tension, compression or pressure into an electrical output signal (load cell definition). Force Sensors are also commonly known as Force Transducer.
How to measure weight with load cell sensors?
A load cell is essentially a force transducer or force sensor. It is used principally to measure weight. And although they can be used to measure other forces such as torque, compression, pressure, etc. we will focus on weight measuring applications in this article. An example load cell sensor
How do the pulse sensors work on exercise machines?
In many cases, you grab the bars on the metallic sensors, ensuring your hands cover the sensors completely — all the sensors, if the machine has two on each side. As you exercise, either leave your hands on the sensors to watch your heart rate increase or grab them periodically to check the rate.
Do you need a heart rate monitor on an exercise machine?
They tend to be fairly accurate, but for a more precise heart rate number, use a different type of monitor — one that straps to your chest. These aren’t included with many exercise machines, but you can purchase one or borrow one from the gym, if available.
Is the strain gage sensor a load cell?
The combination of such housing with the strain gage sensor mounted onto it is a load cell. Now let’s look at the various shapes and sizes of such load cells, and how they are used.