Industrial Terminology Glossary – T
An instrument designed to quantify the speed at which an engine rotates. Read More…
Tape Measure
A flexible ruler used to measure distance, consisting of a ribbon of cloth, plastic, fiberglass, or metal strip with linear-measurement markings.
Tare
A deduction from the gross weight of a substance and its container made in allowance for the weight of the container
Temperature Coefficient
A numerical value indicating the relation between a change in temperature and a simultaneous change in some other property, often the physical length of an object.
Temperature Controller
An instrument used to control temperatures, mainly without extensive operator involvement
Temperature Data Logger
A measurement instrument that is capable of autonomously recording temperatures over a defined period of time
Temperature Limit
The full capability of the system from the lowest point to the highest point; limited by the sensor.
Temperature Probe
Any of a variety of devices which convert temperatures to electrical signals.
A device designed to quantify the tensile strength of substances, representing the maximum force a material can endure before fracturing under tension. Read More…
Tension meter
A tension meter is a device used to measure tension in wires, cables, textiles, belts and more.
A device used for determining particle size and size distribution in material samples that operates by guiding the sample through an array of wire mesh screens featuring various aperture sizes. Read More…
THD (% THD, Total Harmonic Distortion)
The contribution of all harmonic frequency currents or voltages to the fundamental current or voltage, expressed as a percentage of the fundamental
Thermal Shock
Occurs when a thermal gradient causes different parts of an object to expand by different amounts. This differential expansion can be understood in terms of stress or of strain, equivalently
Thermistor
A temperature sensitive passive semiconductor which exhibits a large change in electrical resistance when subjected to a small change in temperature. Usually with negative temperature coefficient.
A specialized temperature sensor that uses two dissimilar metal conductors joined at one end to form a junction, which serves as the point for temperature measurements. Read More…
Thermocouple Break Protection
A Safety feature to indicate when a thermocouple has failed in an open circuit condition. Its purpose is to eliminate the possibility of an ambiguous reading. In the case of a temperature controller, it eliminates the dangerous condition of thermal runaway.
Thermocouple Calibrator
Any of a variety of devices used to simulate the presence of a thermocouple probe in an electrical circuit. Most models can simulate a variety of thermocouple types by sourcing a scaled voltage which represents a known temperature.
Thermocouple Loop Resistance
The total resistance of the thermocouple and its extension wire.
Thermometer
Any of a variety of instruments used to measure temperature. Thermometers may be digital (thermocouple or RTD), analog (bimetal), or liquid-in-glass and vary widely in temperature limits and accuracy.
Thermopile
A number of thermocouples connected in series, arranged so that alternate junctions are at the reference temperature and at the measured temperature, to increase the output for a given temperature difference between the measuring and reference junctions.
A safeguarding cylindrical metal enclosure positioned within a liquid or gaseous medium within industrial processes. Read More…
A thread gauge, also known as a screw or pitch gauge, precisely measures the pitch or lead of screw threads. The pitch is the distance between consecutive threads, while the lead represents the distance a screw advances in one full rotation. Read More…
A thread profile gauge serves as a precision tool designed for the measurement and inspection of tapered threads. Read More…
A device designed for gauging torque, which represents the twisting or turning force exerted on an object. Torque analyzers function by converting mechanical torque into an electrical signal that can be quantified and exhibited. Read More…
Torque Wheel (Torque Arm)
A tool used for the calibration of torque transducers, consisting of a rigid arc of a known radius and a suspension cable from which weights are hung. The cable rests against the arc so that the angle of force produced by the weights is always 90° to the torque length as the transducer turns with increasing weight. This reduces mechanical cosine error, allowing for a more precise application of known torque.
A device used for the precise measurement of torque, the rotational force responsible for setting objects into motion. Read More…
A tool engineered to simplify the process of unfastening tightly secured bolts, nuts, and various fasteners that prove resistant to manual loosening. Read More…
A tool designed to enable users to exert a specific and controlled level of rotational force, or torque, when tightening screws. Read More…
A device designed to measure the rotational force applied to an object. These devices can be either manual or automatic. Read More…
A device designed to gauge and record the rotational force applied to a rotating system. Read More…
A torque watch, also known as a torque watch gauge, is a compact, handheld instrument engineered for the measurement of torque exerted on fasteners, such as screws, bolts, and nuts. Read More…
A torque wrench is an essential mechanical tool designed to enable users to apply a predetermined and exact amount of torque when tightening nuts and bolts. Read More…
Total Runout
A 3D measurement which takes into account the entire surface of a part. Where runout measures only one cross-section relative to an axis, total runout takes the entire part into consideration
Tracking
The ability of an instrument to indicate at the scale mark being checked when energized by the proportional value of actual end-scale excitation.
Tracking Error
The error in indication at a scale mark, expressed in percentage of fiducial value, when the instrument is energized by the proportional value of the actual end-scale excitation.
Triac
A three-electrode semiconductor switching device that can switch either alternating or direct currents.
Trim
To make a slight change in a strain gauge system by means of a potentiometer or other adjustment point. In multiple load cell systems, a small adjustment to help balance the input from the different cells.
Triple Point
The Temperature at which the solid, liquid and vapor phases of a pure substance co-exist in equilibrium.
True RMS (Root Mean Square)
The true root-mean-square value of an AC or AC-plus-DC signal, often used to determine power of a signal. For a perfect sine wave, the RMS value is 1.11071 times the rectified average value, which is utilized for low-cost metering. For significantly non-sinusoidal signals, a true RMS converter is required.
A substantial weighing device used for determining the mass of complete commercial vehicles such as trucks, buses, and trailers. Read More…
Two Wire Transmitter
Transmitters which provide a two-wire output with the same wiring used for power and output in order to reduce the number of wires running to the control enclosure. The load resistance is connected in series with a dc power supply, and the current drawn from the supply is a 4-20 mA or output signal which is proportional to the input signal.
