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- Order number: Phidgets-3139_0
- Manufacturer product ID: 3139_0
This small load cell measures shear forces of up to 100g and connects to a bridge input.
A load cell is a force sensing module - a carefully designed metal structure, with small elements called strain gauges mounted in precise locations on the structure. Load cells are designed to measure a specific type of force, and ignore other forces being applied. The electrical signal output by the load cell is very small and requires specialized amplification. Fortunately, Phidget Bridge Interfaces will perform all the amplification and measurement of the electrical output.
Load cells are designed to measure force in one direction. They will often measure force in other directions, but the sensor sensitivity will be different, since parts of the load cell operating under compression are now in tension, and vice versa.
This Single Point Load Cell is often used in small, high-precision scales. It’s mounted by bolting down the end of the load cell where the wires are attached, and applying force on the other end. Where the force is applied is not critical, as this load cell measures a shearing effect on the beam, not the bending of the beam. If you mount a small platform on the load cell, as would be done in a small scale, this load cell provides accurate readings regardless of the position of the load on the platform.
Load cells require a power source and produce a very small voltage differential when under strain. In order to read this signal, an amplifier or a board with a high-precision analog-to-digital converter is required.
|Sensor Type||Shear Load Cell|
|Controlled By||Bridge Input|
|Weight Capacity Max||100 g|
|Maximum Overload||120 g|
|Cell Repeatability Error Max||± 50 mg|
|Cell Non-Linearity Max||50 mg|
|Cell Hysteresis Max||50 mg|
|Rated Output||600 μV/V|
|Rated Output Error Max||± 150 μV/V|
|Output Impedance||1 kΩ|
|Temperature Effect on Zero||5 mg/°C|
|Temperature Effect on Span||5 mg/°C|
|Supply Voltage Min||3 V DC|
|Supply Voltage Max||10 V DC|
|Zero Balance Ratio||± 100 μV/V|
|Operating Temperature Min||-10 °C|
|Operating Temperature Max||40 °C|
|Compensated Temperature Min||-10 °C|
|Compensated Temperature Max||60 °C|
|Cable Length||110 mm|
|Cable Gauge||4x 30 AWG|
|Material||Aluminium Alloy (LY12CZ)|
|Screw Thread Size||2.5M|