A tricorder was a multifunction hand-held device useful for data sensing, analysis, and recording, with many specialized abilities which made it an asset to crews aboard starships and space stations as well as on away missions. (TOS: "The Naked Time") The word itself is short for "tri-function recorder," since it essentially consisted of three systems: the sensor array previously mentioned, a computer for the said analyses, and a recorder to store the data thus gathered. (citation needededit) Tricorders were often useful for recording entries in personal or official logs.

Mister Tricorder

Data using "Mr. Tricorder"

"Mr. Tricorder" was a joke made by Data in 2371 during an away mission aboard the Amargosa observatory following the installation of his emotion chip. He used a tricorder like a hand puppet and talked to Geordi La Forge. (Star Trek Generations)

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Background information Edit

According to Stephen Whitfield in The Making of Star Trek, Gene Roddenberry originally came up with the idea of the tricorder not only as a useful device but as "a potentially popular toy for female-type children."

In the Star Trek: The Original Series writers' guide, third revision, dated 17 April 1967, the device was described as:

"TRICORDER: A portable sensor-computer-recorder, about the size of a large rectangular handbag, carried by an over-the-shoulder strap. A remarkable miniaturized device, it can be used to analyze and keep records of almost any type of data on planet surfaces, plus sensing or identifying various objects. It can also give the age of an artifact, the composition of alien life, and so on. The tricorder can be carried by Uhura (as communications officer, she often maintains records of what is going on), by the female yeoman in a story, or by Mister Spock of course, as a portable scientific tool. It can also be identified as a 'medical tricorder' and carried by Doctor McCoy." (Star Trek: The Original Series 365, p. 026)

In the final draft script of TOS: "Miri", a tricorder was used by Spock to ascertain that McCoy wasn't dead. In the final version of that episode, however, no device is used by Spock upon determining that conclusion.

The tricorders in Star Trek III: The Search for Spock were designed by Bill George. (text commentary, Star Trek III: The Search for Spock (Special Edition) DVD special features)

In the documentary Star Trek: Beyond the Final Frontier, Brannon Braga ironically states that, although he didn't know what tricorders do, "they were probably used a little too often."

Recalling how the tricorders in Star Trek: Discovery were designed, Aaron Harberts described them as "super-important [...] key props" that "nobody wanted to really change." [1]

Real-world devices Edit

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The first "real-world" tricorder was developed by a Canadian company called Vital Technologies Corporation in 1996. The scanner was called the TR-107 Mark 1; Vital Technologies sold 10,000 of them before going out of business in 1997. The TR-107 could scan EM radiation, temperature, and barometric pressure. The TR-107 is properly referred to as a true "tricorder" due to a clause in Gene Roddenberry's contracts with Desilu/Paramount dating back to the time of The Original Series. The clause specified that if any company could find a way to make one of the fictional devices actually work, then they would have the right to use the name.

Many research laboratories are developing, or have developed, portable scientific analyzers. For example, in February 2007, researchers from Purdue University publicly announced their portable (briefcase-sized) DESI-based mass spectrometer, the Mini-10, which could be used to analyze compounds in ambient conditions without prior sample preparation. This was also announced as a "real-life tricorder" in later press releases. Truly hand-held devices, based on lab-on-a-chip systems, are also in development. These are typically more specialized than the Star Trek equivalent; however, it is believed that biomarker analysis will allow the development of a general-purpose medical instrument in the near future.

Sandia National Laboratories in the US is a major center for lab-on-a-chip research, and have developed many handheld instruments for biological or chemical analysis. In May 2008, researchers from Georgia Tech publicly announced their portable hand-held multi-spectral imaging device, which aids in the detection of the severity of an injury under the skin, including the presence of pressure ulcers, regardless of lighting conditions or skin pigmentation. The day after the announcement, technology websites including Inside Tech and The Future of Things began comparing this device to the Star Trek tricorder.

In October 2009, researchers from NASA showed their prototype for a device that detects deadly gases in the air; it contains a chip the size of a postage stamp connected to an iPhone.

A mobile medical imaging lab that operates using inexpensive mobile phones was demonstrated in 2009.

In April 2017, a seven-member, self-funded team took first place in the international Qualcomm Tricorder XPRIZE competition. Their entry consists of several parts that are used with a tablet. It exceeds the design goal by being able to help a layperson walk through the process of diagnosing thirty-four medical conditions. The tricorder is called DxtER (pronounced Dexter) and the team is looking forward to evaluation and testing by the U.S.A. Food and Drug Administration. More information is here.

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