Load cell experimental module is a demonstration system. Using this trainer, the student can experiment, how a Load cell behaves for tensile and compressive loads. 1Kg Load cell is used to conduct this experiment. This Load cell is fixed on a mechanical structure (jig); which is used to experiment, both tension and compression. Assorted weights are supplied to add in steps of 50gm upto 1Kg. The output of the transducer is connected to the interface electronics, consisting of signal conditioner, instrumentation amplifier, adjustable gain data amplifier and a power supply. A digital display indicates the actual added weights, to the Load cell. Negative sign on the display indicates compressive load.

The Load cell is commonly used form of strain- gauge transducer. It converts an applied force (weight) into a bridge output potential. In a Load cell, the strain gauge is mounted on some form of a mechanical sensing element (column, beam et c.), and the gauge (or gauges) is (are) into a bridge configuration. Compensation of temperature and non-linearity is provided for by the manufacturer in the selection of resistance values for the arms of the bridge and in series with the bridge. Strain gauges are low-impedance devices; they require significant excitation power to get output at reasonable levels. A typical strain-gauge-based Load cell will have a 350Wimpedance.

Specifications:

• Universal type.
• Capacity: 1Kg
• Strain gauge impedance: 350 Ohms, connected in bridge configuration.
• Excitation: 9VDC
• Display: 3 1/2digit
• Power supply: Built-in
• Jig: Approximately 35x25cm. Provision to test, compression and tension.
• Weights: Assorted weights, to measure upto 1Kg in steps of 50gm.
• Interface: This works as an interface to any Data Acquisition system or to DAS-1.