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|inventor = [[William Murdoch]] |
|inventor = [[William Murdoch]] |
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|first appearance = '''''[[Still Waters]]''''' |
|first appearance = '''''[[Still Waters]]''''' |
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| + | |last appearance = '''''[[A Study in Pink]]''''' |
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| − | + | }}The '''Pneumograph''' or '''Truthizer''' as named by [[George Crabtree]] was created by [[William Murdoch]] using the known principles of the pneumatograph or spirograph, a device that records the velocity and force of thorax movements during respiration. Murdoch calls it an '''Autonomic Response Indicator''' (ep.[[A Study in Pink|1003]]) |
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Murdoch explains in his demonstration (ep.[[Still Waters|108]]) to the constables of [[Station House Four|Station House No. 4]], "''Panic has many signatures– shortness of breath, a rise in blood pressure, stiffening of the limbs. If human physiology changes under duress, then why not use this to our advantage''?" |
Murdoch explains in his demonstration (ep.[[Still Waters|108]]) to the constables of [[Station House Four|Station House No. 4]], "''Panic has many signatures– shortness of breath, a rise in blood pressure, stiffening of the limbs. If human physiology changes under duress, then why not use this to our advantage''?" |
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After calling the lie detector a "''Frankenstein contraption''" and "your "''new mograph' thingy''...", [[Thomas Brackenreid|Inspector Brackenreid]] confesses, "''Well, I've got one of those at home. It's called a [[Margaret Brackenreid|wife]]''." |
After calling the lie detector a "''Frankenstein contraption''" and "your "''new mograph' thingy''...", [[Thomas Brackenreid|Inspector Brackenreid]] confesses, "''Well, I've got one of those at home. It's called a [[Margaret Brackenreid|wife]]''." |
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| − | ==== |
+ | ===='''''[[Still Waters]]'''''==== |
* While still strapped to the '''Pneumograph''' and [[Julia Ogden|Dr. Ogden]] is present, [[Henry Higgins|Higgins]] asks him "''Is the Detective is in love''?" He is saved by the whistle and George reassures him with, "''I don't think anybody noticed that, Sir, with you and her and the liquid''." |
* While still strapped to the '''Pneumograph''' and [[Julia Ogden|Dr. Ogden]] is present, [[Henry Higgins|Higgins]] asks him "''Is the Detective is in love''?" He is saved by the whistle and George reassures him with, "''I don't think anybody noticed that, Sir, with you and her and the liquid''." |
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* Murdoch used his '''Pneumograph''' to interrogate [[James Pearson]] and [[Wallace Driscoll]] of the [[King's Rowing Club]] during his investigation into the murder of [[Richard Hartley]]. |
* Murdoch used his '''Pneumograph''' to interrogate [[James Pearson]] and [[Wallace Driscoll]] of the [[King's Rowing Club]] during his investigation into the murder of [[Richard Hartley]]. |
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| − | ==== |
+ | ===='''''[[Invention Convention]]'''''==== |
* Murdoch discovers [[George Crabtree|Crabtree]] demonstrating his devise at the convention, calling it '''The Truthizer''', "''Before you say it, sir, I think that your invention simply must see the light of day''." |
* Murdoch discovers [[George Crabtree|Crabtree]] demonstrating his devise at the convention, calling it '''The Truthizer''', "''Before you say it, sir, I think that your invention simply must see the light of day''." |
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* "''They are not inventions, George. They are simply re-workings of existing technology''." [[William Murdoch|Murdoch]] tries to explain how he holds his creations. |
* "''They are not inventions, George. They are simply re-workings of existing technology''." [[William Murdoch|Murdoch]] tries to explain how he holds his creations. |
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* George is convinced that the '''Truthizer''' might win the Eaton Prize for most commercially promising invention. |
* George is convinced that the '''Truthizer''' might win the Eaton Prize for most commercially promising invention. |
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| − | ==== |
+ | ===='''''[[A Study in Pink]]'''''==== |
| + | * Murdoch has upgraded his '''Pneumograph''' with a blood pressure cuff. |
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| − | ==Trivia== |
+ | == Trivia == |
* Historically, a device called the polygraph was invented in 1921 using pneumographic sensors. |
* Historically, a device called the polygraph was invented in 1921 using pneumographic sensors. |
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| + | |||
== Gallery == |
== Gallery == |
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| − | <gallery> |
+ | <gallery widths="150" spacing="small"> |
Truthizer.jpg |
Truthizer.jpg |
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mm1003 Truthizer 3.PNG|[[A Study in Pink]] |
mm1003 Truthizer 3.PNG|[[A Study in Pink]] |
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Latest revision as of 20:06, 26 October 2022
The Pneumograph or Truthizer as named by George Crabtree was created by William Murdoch using the known principles of the pneumatograph or spirograph, a device that records the velocity and force of thorax movements during respiration. Murdoch calls it an Autonomic Response Indicator (ep.1003)
Murdoch explains in his demonstration (ep.108) to the constables of Station House No. 4, "Panic has many signatures– shortness of breath, a rise in blood pressure, stiffening of the limbs. If human physiology changes under duress, then why not use this to our advantage?"
It measures physiological change associated with duress. The machine is connected to a person and measures that person's heart rate and breathing while they are asked a series of questions. Variations in their biometrics cause fluid to rise in a tube on the device. This is generally an indication that the subject is lying.
After calling the lie detector a "Frankenstein contraption" and "your "new mograph' thingy...", Inspector Brackenreid confesses, "Well, I've got one of those at home. It's called a wife."
Appearances and Mentions
Still Waters
- While still strapped to the Pneumograph and Dr. Ogden is present, Higgins asks him "Is the Detective is in love?" He is saved by the whistle and George reassures him with, "I don't think anybody noticed that, Sir, with you and her and the liquid."
- Murdoch used his Pneumograph to interrogate James Pearson and Wallace Driscoll of the King's Rowing Club during his investigation into the murder of Richard Hartley.
Invention Convention
- Murdoch discovers Crabtree demonstrating his devise at the convention, calling it The Truthizer, "Before you say it, sir, I think that your invention simply must see the light of day."
- "They are not inventions, George. They are simply re-workings of existing technology." Murdoch tries to explain how he holds his creations.
- George is convinced that the Truthizer might win the Eaton Prize for most commercially promising invention.
A Study in Pink
- Murdoch has upgraded his Pneumograph with a blood pressure cuff.
Trivia
- Historically, a device called the polygraph was invented in 1921 using pneumographic sensors.
Gallery
| Murdoch Mysteries Seasons |
|---|
| Season 1 • Season 2 • Season 3 • Season 4 • Season 5 • Season 6 • Season 7 • Season 8 • Season 9 • Season 10 • Season 11 • Season 12 • Season 13 • Season 14 • Season 15 • Season 15 • Season 16 • Season 17 |