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Vent Holes in Load Cell for Pressure Compensation and Cleaning
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From Honeywell Sensing and Control / Sensors for Test & Measurement
The customer needs to measure the force on a hydraulic cylinder in a down-hole well logging tool. The pressure inside the oil-filled tool can reach 20,000 psi, which will cause the load cell to give false readings as if it was a pressure transducer. We drill two holes on opposite sides of the Model ll Miniature Load Cell element to allow the ambient pressure in the tool to be on both sides of the load cell element. While one hole would work, two are provided to facilitate cleaning (flushing), if necessary. Products & Services
Force and load sensors covers electrical sensing devices used to measure tension, compression, and shear forces.
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Torque sensors, gauges, instruments, and switches are used to measure torque in a variety of applications.
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Force and torque instruments are used to measure force, weight or torque. Some can measure force and torque by changing the sensor / transducer.
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Load cells are transducers for force and load measurement, often with mounting packaging. They are widely used in testing, instrumentation, and as components in larger devices such as scales.
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Dynamometers are used in motor and engine testing. These devices apply braking or drag resistance to rotation, and measure torque at various speeds and power input levels.
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Topics of Interest
The typical application of these products include measurements dynamometers, tool dulling indicator, motor quality control or conversion of rotary to reaction torque.
Load Cell | Bending Beam Load...
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The diagram below is a good example of closed loop feed back operation. It shows how donut / thru hole load cells and pancake load cells can be used in insertion / press applications for precision...
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Below is a common assembly line lineup. It is a conveyor based assembly line where a piece of sheet metal is traveling through several operations. The first step is the stamping / punching station in...
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Sensors and transducers have been very instrumental in the development of prosthetic devices. They allow prosthetic devices to closely mimic human limbs. In the example below, a smart/digital torque...
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Most cranes, earthmovers and similar equipment are operated using hydraulic systems. In order to control the movement, holding, gripping or applied force, pressure sensors are utilized to monitor and...
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