Test Equipment

Question 1

Name six types of test equipment.

Answer 1

multi-meter, sign wave oscillator, oscilloscope, phase tester, sound pressure level meter, and real time analyzer.

Question 2

Displays a virtual representation of an electrical signal; displays a signal as a function of time; speed of the sweep determines the time interval that is represented - the faster the sweep, the shorter the interval.

Answer 2

Oscilloscope

Question 3

Used to determine the polarity of the circuit; for input/output transducers; caution is required when using this; relatively sensitive device, and will give incorrect readings under a variety of conditions.

Answer 3

Phase tester

Question 4

Performs a wide variety of tests and are used in servicing electronic equipment; commonly used to measure voltage and circuit resistance; capable of both dc and ac measurement.

Answer 4

Multi-meter

Question 5

When using your multi-meter, the ___ voltage section of the multi-meter should remain accurate throughout the entire audioband. 20Hz to 20kHz

Answer 5

AC

Question 6

Is a signal generator that produces a pure sine wave; covers the full audio range; used for system measurements that require a known signal source; particularly resourceful for detecting distortion

Answer 6

sine wave oscillator

Question 7

Consists of a calibrated microphone, amplifying circuitry, and a meter movement. Used for measuring loudness and offers both fast and slow response, switch selected. Provides peak hold function that will hold and display a maximum reading.

Answer 7

sound pressure level meter

Question 8

When using an SPL meter, slow response is used to find the ___ SPL. Fast response is used to find the ___ SPL.

Answer 8

average

peak

Question 9

When using an SPL meter indoors, how should you hold it to get a reliable reading?

outdoors?

Answer 9

hold the meter at a right angle to the sound source as far away from the body as possible.

microphone should be pointed up.

Question 10

Is used to show the frequency response of a sound system or signal processor in real time. Basically a spectrum analyzer, specialized for audio.

Answer 10

real time analyzer

Question 11

Name the seven things that make up a real time analyzer and what is its signal source normally used as?

Answer 11

signal source, calibrated mic, preamplifier, signal amplying and filtering circuitry, and a display

Pink noise generator.