Terms are for industrial-based sensors and transducers. For Aerospace terms & definitions, please refer to Applications Notes & White Papers or refer to LVDT, RVDT and Force Sensor data sheets.

Temperature Coefficient of Full-Scale Span – the percent of change in full scale span per unit change in temperature relative to the full-scale span at a specified temperature.

Temperature Coefficient of Resistance – the percent change in the DC input impedance, per unit change in temperature relative to the DC input impedance at a specified temperature.

Temperature Error – the maximum change in output, at an input pressure, within the specified range resulting from a change in temperature.

Terminal Based Linearity (TBL) – or end point linearity is a method of defining linearity. The maximum deviation of any data point on a transducer output curve from a straight line drawn between the end data points on that output curve. TBL is approximately twice the magnitude of Best-Fit Straight Line (BFSL).

Thermal Offset Shift – see Temperature Coefficient of Offset.

Thermal Span Shift – see Temperature Coefficient of Full Scale Span.

Thermal Zero Shift – see Temperature Coefficient of Offset.

Thick Film – technology using screened on pastes to form conductor, resistor, thermistors, and insulator patterns; screened onto the substrate (usually ceramic) and cured by firing at elevated temperatures.

Thin Film – a technology using vacuum deposition of the conductors and dielectric materials onto a substrate (frequently silicon) to form an electrical circuit.

Total Flow – is the flow rate integrated over a time interval.

Total Pressure – (also called stagnation pressure or ram pressure) is the vector sum of the static pressure and impact pressure.

Transducer – a device or medium that converts energy from one form to another. The term is generally applied to devices that take physical phenomenon pressure, humidity, temperature, flow, etc., and convert it to an electrical signal.

Transmitter – a device specifically designed to enhance communication of information from one location to another. A Pressure Transmitter is a device with a 4-20mA output specified.

Unidirectional Differential Pressure Sensor – a differential pressure transducer requiring the greater input pressure to be applied to a specific pressure port.

Vacuum – a pressure less than atmospheric pressure (a perfect vacuum is the absence of gaseous fluid).

Vibration Error – the maximum change in output of a transducer when a specific amplitude and range of frequencies are applied to a specific axis at room temperature with no pressure applied.

Vibration Error Band – the error recorded in output of a transducer when subjected to a given set of amplitudes and frequencies.

Volumetric Flow Rate – is flow rate expressed as a fluid volume per unit time.

Zero – see Null.

Zero – the electrical output of zero volts at null conditions.

Zero Offset – see Null Offset.

Zero Pressure Offset – the output at zero pressure (absolute or differential, depending on the device type) for a specified supply voltage or current.