Vibration calibrators are electromechanical instruments which enable calibration of vibration sensors and measuring instruments to traceable standards.
 They produce sinusoidal mechanical vibration signals with known amplitudes and frequencies.
 The vibrating part of the instrument is usually a cylindrical steel stud with an internal thread for attachment of the test object.
 An electrodynamic or piezoelectric actuator system is used to produce the vibrations.
 With older instruments it was necessary to adjust the vibration amplitude according to the weight of the test object.
 However, modern instruments contain a built-in reference accelerometer and closed-loop control, with which the amplitude is kept constant up to a maximum specified weight of test object.
 Older models can be used to calibrate objects weighing up to a maximum of approximately 100 g, whereas the latest instruments can work stably with test objects weighing over 500 g.
Baka and Test, known in Japan as Baka to Test to Shōkanjū, is an anime series produced by Silver Link based on the light novel series by .
 In a school in which students are able to summon beasts powered by their test scores, with higher scores resulting in ritzier lifestyles, the series revolves around a group of students stuck in the lowest-ranked F class.
 The first season aired in Japan between January 7 and March 31, 2010.
 On March 4, 2010, Funimation Entertainment announced that it had acquired the anime and streamed simulcast subtitled episodes days after they aired in Japan under the title "Baka and Test – Summon the Beasts".
 Two OVA episodes under the title "Baka to Test to Shoukanjuu: Matsuri".
 were released in two BD/DVD volumes: the first on February 23, 2011 and the second on March 30, 2011.
 Both OVA come with 2-3 different ending sequences.
 A second anime season under the title "Baka to Test to Shoukanjuu Ni!"
 began airing in Japan in July 8, 2011.
The multi-stage fitness test, also known as the pacer test, is a series of stages that have different tasks sometimes used by sports coaches and trainers to estimate an athlete's VO max (maximum oxygen uptake).
 The most common variation of the multi-stage fitness test is the FitnessGram/Cooper PACER test.
 The test is especially useful for players of sports such as rugby, association football, Australian rules football, Gaelic football, hurling, hockey, netball, handball, tennis, squash, and fitness testing in schools and colleges plus many other sports; employed by many international sporting teams as an accurate test of cardiovascular fitness, one of the more important components of physical fitness.
 The test was created in 1982 by Luc Léger, University of Montreal and published in 1983 with a starting speed of 8 km/h and stages of 2 min duration.
 The test was re-published in the European Journal of Applied Physiology in 1988 in its present form with a starting speed of 8.5 km/h and 1 min stages under the name "The multistage 20 metre shuttle run test for aerobic fitness".
 Result equivalences between slightly modified versions are well explained by Tomkinson et al. in 2003.
The Kohs Block test, also known as the Kohs Block Design Test, is a performance test designed to be an IQ test.
 The test taker must, using 16 colored cubes, replicate the patterns displayed on a series of test cards.
 The design of the test was motivated by a belief that the test could easily be administered to persons with language or hearing disabilities.
Johnny Test is an animated television series produced by Warner Bros.
 Animation and Coliseum Entertainment, for the first and second seasons, and Cookie Jar, for the remainder of the series.
 It premiered on Kids' WB, on September 17, 2005, which continued to air the series through its second and third seasons.
 The rest of the series aired on Cartoon Network, from its debut on January 7, 2008, in the United States and internationally.
 In Canada, the series aired on Teletoon, premiering September 8, 2006.
The Lycoming O-360 is a family of four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engines. Engines in the O-360 series produce between 145 and 225 horsepower (109 to 168 kW), with the basic O-360 producing 180.
Marÿke Hendrikse ( ; born February 23, 1979) is a Bahamian–Canadian voice actress who works primarily for Ocean Studios in Vancouver, British Columbia, Canada.
 She has played several roles in anime, most notably Revy in "Black Lagoon" and Lunamaria Hawke in "Gundam Seed Destiny".
 She is also known for her roles as Susan Test in "Johnny Test", Gilda in "", and Sonata Dusk in "".
Susan Stewart M.D. (maiden name Burke; previously: Baxter, McDermott and Decker) is a fictional character on the American soap opera "As the World Turns".
 She was first played by Connie Scott in 1966, but the actress who has played her longest is Marie Masters.
 Masters stepped into the role in September 1968.
 In 1978, Judith Barcroft temporarily replaced Masters.
 Masters left in 1979 when Susan Stewart left town, but she returned to the role in 1986 when Susan Stewart came back to Oakdale.
 Susan has long been a citizen in Oakdale formerly known for her dysfunctional personality and scheming nature.
 A reformed alcoholic and respected physician, she is a beloved (albeit some have considered troublemaking) character.
 Her two daughters, Alison and Emily, seem to have inherited their mother's knack for getting into trouble, and in recent years, Susan has been most frequently seen consoling and counseling them.
A hydrogen breath test (or HBT) is used as a diagnostic tool for small intestinal bacterial overgrowth and carbohydrate malabsorption, such as lactose, fructose, and sorbitol malabsorption.
 The test is simple, non-invasive, and is performed after a short period of fasting (typically 8–12 hours).
 Even though the test is normally known as a "Hydrogen Breath Test" some physicians may also test for methane in addition to hydrogen.
 Many studies have shown that some patients (approximately 35% or more) do not produce hydrogen but actually produce methane.
 Some patients produce a combination of the two gases.
 Other patients, who are known as "Non-Responders", don't produce any gas; it has not yet been determined whether they may actually produce another gas.
 In addition to hydrogen and methane, some facilities also utilize carbon dioxide (CO) in the patients' breath to determine if the breath samples that are being analyzed are contaminated (either with room air or bronchial dead space air).
Psychological testing refers to the administration of psychological tests.
 A psychological test is "an objective and standardized measure of a sample of behavior".
 The term "sample of behavior" refers to an individual's performance on tasks that have usually been prescribed beforehand.
 The samples of behavior that make up a paper-and-pencil test, the most common type of test, are a series of items.
 Performance on these items produce a test score.
 A score on a well-constructed test is believed to reflect a psychological construct such as achievement in a school subject, cognitive ability, aptitude, emotional functioning, personality, etc.
 Differences in test scores are thought to reflect individual differences in the construct the test is supposed to measure.
 The technical term for the science behind psychological testing is psychometrics.

Question: Maryke Hendrikse is known for her role as Susan Test in a series produce by who?
Answer: Warner Bros