Glossary

Glossary

GLOSSARY Glossary of Terms Related to Our Products

In order to gain a deeper understanding of our products, we will explain basic terms.

Rated power

Maximum load that the sensor can measure while maintaining specifications.

Rated output

The difference between the output at rated load and at no load.
Expressed as the power (mV/V) per applied-voltage 1V.

Voltage sensitivity

Voltage signal output in proportion to the stress applied to the sensor.
Expressed by mV/N.

Charge sensitivity

Charge signal output in proportion to the stress applied to the sensor.
Expressed by pC/N.

Discharge time constant

This is the time until the output at the rated load attenuates to 36% in the piezoelectric sensor.

Lower cutoff frequency range

Frequency range of the low frequency band that is eliminated from the output of the sensor.

Base noise

The voltage that is on the output voltage when the sensor amplifier is turned on.

Maximum working load

The load value that exceeds the rated capacity and is not affected by the sensor specifications.
If the max. working load is exceeded, the output of the sensor may not be as specified.

Maximum load

A critical load that causes damage to the sensor.

Non-linearity

The maximum deviation of the calibration curve from the straight line of the no-load point and the rated load point.
Measured when the load of calibration is increased.
Expressed as a percentage of the rated output.

Hysteresis

This is the maximum difference between the outputs when the load increases in the cycle and when the load decreases.
Expressed as a percentage of the rated output.

Repeatability

Maximum difference when repeatedly loaded under the same conditions.

Recommended/allowable applied voltage

Voltage that can be applied to the input terminal of the gauge type sensor.

Resistance between input terminals

Resistance between input terminals measured with the output terminals open without load.

Resistance between output terminals

Resistance between output terminals measured with the output terminals open without load.

Insulation resistance

The sensor circuit and the DC resistance of the sensor head.

Compensating temperature range

The temperature range in which the rated output and the zero balance are compensated not to exceed the specifications.

Working temperature range

The temperature range within which the product can be used without failure.

Temperature characteristic of the zero point

This is the amount of output change when the temperature of the sensor changes by 1°C at no load.
The change of 1°C is expressed as a percentage of the rated output.

Zero balance

Output at no load.

Active gauge

Strain gauge attached to the part where distortion occurs.

Dummy gauge

Strain gauge attached to the part where no distortion occurs.
Mainly used for temperature compensation.

SN ratio

Ratio between specified output and noise.
Expressed in % or decibels (db).

Bridge

This is a Wheatstone bridge circuit that constitutes a strain gauge and measures stress.

Gauge factor

A coefficient representing the sensitivity of the strain gauge.
The strain gauge for general use is almost 2, but the semiconductor gauge is 70.

Resolution

Minimum amount of change that can be measured with an indicator or amplifier.

Degree of protection

The waterproof and dustproof properties are expressed in IP standards.

Power DC

This is the base voltage output when the op-amp power is turned on using the current superimposition circuit.

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