TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

The microwave plasma detector uses a microwave plasma to excite compounds and/or their microwave-produced fragments. Photometric measurement of the emitted radiation completes the detection system.  3, record 1, English, - microwave%20plasma%20detector

Record number: 1, Textual support number: 1 OBS

Free electrons thus produced cause the solute molecules to fragment into free atoms and diatomic molecules which give rise to spectra. The technique is limited but is suitable for the selective study of compounds containing halogens, phosphorus and sulphur atoms.  4, record 1, English, - microwave%20plasma%20detector

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Détecteurs sélectifs. [...] Nous citerons encore les détecteurs électrochimiques permettant d'obtenir des réponses sélectives pour les composés azotés, chlorés ou soufrés, et d'autres, tels que le détecteur à ionisation d'argon ou d'hélium, détectant des traces de gaz permanents, de même que le détecteur à ionisation par haute fréquence. Pour les atomes métalliques, on pourra utiliser le détecteur à plasma excité par micro-ondes.  1, record 1, French, - d%C3%A9tecteur%20%C3%A0%20plasma%20excit%C3%A9%20par%20micro%2Dondes

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

A simple arrangement of two cavities in series showed the feasibility of detecting traces of one gas in another. A klystron was used to generate microwave power which was fed through a wave guide to a transmission-type cavity. Another cavity was mounted in series with and tuned to the same frequency as the first; both cavities were identical except that the second had a gas inlet and outlet ports. From this measuring cell, its microwave energy was sent to a crystal detector. By frequency-modulating the klystron with a 50-cps sine wave voltage on the repeller, a burst of energy passes to the detector each time the generator frequency equals that of the cavities. The detector current is amplified and measured with an oscilloscope. At the beginning of the run, the two cavities are filled with the nitrogen carrier gas and, if the composition in one of the cavities is changed, its electrical size will change... causing a decrease of current from the detector.  1, record 2, English, - crystal%20detector

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

A hand geometry reader may be the component selected to provide the performance necessary for the element personnel identification, or a doppler microwave detector component may satisfy the element interior intrusion detection.  1, record 3, English, - interior%20intrusion%20detection

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Unlike conventional microwave detectors, the 4120 has two receivers. Coupled with digital processing circuits and memory, the 4120 senses motion and determines the net change in distance of an object from the detector.  2, record 4, English, - microwave%20detector

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Ces détecteurs incorporent des micro-circuits hybrides qui leur donnent une stabilité et une efficacité de performance sans égales. Ils comprennent aussi un dispositif de contrôle de la sensibilité particulier pour éliminer les fausses alarmes.  4, record 4, French, - d%C3%A9tecteur%20%C3%A0%20micro%2Dondes

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 OBS

detector using two types of volumetric sensors, being infrared or microwave.  2, record 5, English, - bivolumetric%20detector

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

les détecteurs bivolumétriques combinent, en principe, les performances des détecteurs infrarouges passifs et ceux à hyperfréquence qui sont plus stables.  2, record 5, French, - d%C3%A9tecteur%20bivolum%C3%A9trique

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

For example a "hand geometry reader" may be the component selected to provide the performance necessary for the element "personnel identification", or a "doppler microwave detector" component may satisfy the element "interior intrusion detection".  1, record 6, English, - doppler%20microwave%20detector

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

Currently available dual channel motion detectors combine either an active ultrasonic or microwave detector with a passive infrared detector.  1, record 7, English, - dual%20channel%20motion%20detector

Record 7,  Textual support,  French

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

Active motion detectors fill the volume in range of the detector with either ultrasonic, microwave, or sonic energy. The transmitted energy forms a standing wave pattern as it reflects from the objects and walls in the room. Some of this energy is reflected back to the detector receiver, where it is received and processed. When there is a disturbance in the received signal due to someone moving within the protected area, the processor initiates an alarm.  1, record 8, English, - active%20motion%20detector

Record number: 8, Textual support number: 1 OBS

Active detection system: a ... system which emits energy as a means of detection.  2, record 8, English, - active%20motion%20detector

Record 8,  Textual support,  French

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

Microwave radiation leakage : Using a calibrated leakage detector, we measured leakage when the [microwave] ovens were new under four conditions : with and without a load; and with and without a wedged door. In no case was the interlock defeated to produce a leakage measurement.  1, record 9, English, - microwave%20radiation%20leakage

Record 9,  Textual support,  French

Record 9,  Textual support,  Spanish