instrument


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instrument

1. Music any of various contrivances or mechanisms that can be played to produce musical tones or sounds
2. a measuring device, such as a pressure gauge or ammeter
3. 
a. a device or system for use in navigation or control, esp of aircraft
b. (as modifier): instrument landing
4. a formal legal document

Instrument

 

a tool of human labor or an actuating mechanism of a machine, which “takes hold of an object of labor and alters it in an expedient fashion” (K. Marx, in K. Marx and F. Engels, Soch., 2nd ed., vol. 23, p. 384).

Instruments are divided into the following categories: (1) cutting (cutter, drill, broach, milling cutter), (2) pressing (stamp, knurl), (3) polishing (polishing wheel, whetstone), (4) percussion (hammer, chisel, punch), and (5) fastening-clamping (machine tool chuck, cutter tool post, vise, tongs). Various devices, apparatus, and equipment used in science and technology for measurements and other procedures and in medicine and veterinary science for surgical operations, therapeutic procedures, and research are also called instruments.

instrument

[′in·strə·mənt]
(engineering)
A device for measuring and sometimes also recording and controlling the value of a quantity under observation.

instrument

A device using an internal mechanism to show visually or aurally the attitude, altitude, or operation of an aircraft or an aircraft part. It includes electronic devices for automatically controlling an aircraft in flight.

instrument

(programming)
To install devices or instructions into hardware or software to monitor the operation of a system or component.
References in periodicals archive ?
Also showcasing new Suntest XXL+, the largest flat-array weather-testing instrument, delivering better irradiance uniformity and control of test parameters.
Soft materials tend to absorb sound, which isn't a good quality for a musical instrument.
MINCO-Midweet Instrument Co, 541 Industrial Dr, Hartland, WI, 53029 tel:
Our customers' storage requirements are important to us, and some have experienced acute pain because their lab instruments generate a large number of files over time," says Michael Masterson, information systems architect at a Fortune 500 life sciences instrument manufacturer.
I did reliability/validity research on an instrument of teacher effectiveness that was developed (but never tested for reliability/validity) by Dr.
446-5(h) adjusts the yield on a debt instrument by treating the issuance costs as if they reduced the debt instrument's issue price and create (or increase) OID.
The most feasible way to accomplish that is to use an instrument that can accurately and quickly analyze a lot of material.
A financial instrument issued in the form of shares that is mandatorily redeemable--that embodies an unconditional obligation requiring the issuer to redeem it by transferring its assets at a specified or determinable date (or dates) or upon an event that is certain to occur
Calibration (VIM-1993)--set of operations that establish, under specified conditions, the relationship between values of quantities indicated by a measuring instrument or measuring system, or values represented by a material measure or a reference material, and the corresponding values realized by standards.
Instrument maker Boosey & Hawkes, for example, offers a line of oboes and clarinets made from a heat-treated mix of African blackwood sawdust, carbon fiber and epoxy glue.
The micro IRHD instrument was introduced in the 1950s as a scaled down version of the IRHD dead load -- used for testing thinner, smaller samples and products.
In the LAUSD, it helps that there's a free Musical Instrument Repair Shop with 19 technicians to service the district's 88,000 instruments.