Measurement, Conversion and Control Questions

• The resistive change of a strain gauge
• The change in value of an analog signal during the conversion process produces what is called the
• The purpose of compensation for a thermocouple is
• What is the moving part of a linear variable differential transformer?
• Holding current for an SCR is best described as
• What device is similar to an RTD but has a negative temperature coefficient?
• Which of the following performance specifications applies to a sample-and-hold circuit?
• What is the zero-voltage switch used for?
• RTDs are typically connected with other fixed resistors
• The silicon-controlled rectifier can be turned off
• The output voltage of a typical thermocouple is
• The connections to a thermocouple
• Temperature sensing can be achieved by the use of
• Pressure transducers are devices that exhibit a change in resistance inversely proportional to a change in pressure.
• Thermocouple connections must be taken into account to ensure a high degree of accuracy.
• The change in value of the analog signal during the sampling process produces what is called the quantization error.
• A basic sample-and-hold circuit consists of an analog switch, a capacitor, and an instrumentation amplifier.
• Noncontacting displacement transducers include optical and capacitive transducers.
• A strain gauge uses the principle of capacitance for its operation.
• Displacement, velocity, and acceleration can all be measured by using specific motion transducers.