GB701955A - Improvements in or relating to charged particle detecting device - Google Patents
Improvements in or relating to charged particle detecting deviceInfo
- Publication number
- GB701955A GB701955A GB7631/52A GB763152A GB701955A GB 701955 A GB701955 A GB 701955A GB 7631/52 A GB7631/52 A GB 7631/52A GB 763152 A GB763152 A GB 763152A GB 701955 A GB701955 A GB 701955A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- flame
- resistance element
- produce
- noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002245 particle Substances 0.000 title abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- 150000002500 ions Chemical class 0.000 abstract 3
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000012935 Averaging Methods 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000523 sample Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/0006—Investigating plasma, e.g. measuring the degree of ionisation or the electron temperature
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
701,955. Electric indicating systems. PHILLIPS PETROLEUM CO. March 25, 1952 [April 9, 1951], No. 7631/52. Class 40 (1). In a device for detecting the production of ions by e.g. a flame or a chemical reaction, the charged particles resulting from the reaction impinge on an electrical noise resistance of high value to produce random noise voltages therein which are amplified, filtered, and rectified to produce an indicating voltage representing the ionic concentration. Fig. 1 shows a reaction chamber 10 for e.g. the 'high temperature combination of chlorine and benzene entering through valved conduits 11, 12 to form chlorobenzene which is withdrawn through valved conduit 13. A high value electrical noise resistance element 16 of e.g. ceramic material is insulatedly sealed through the chamber walls, and connected across the input of a wide band low noise high gain alternating current amplifier 23, which energises a capacitanceresistance high pass filter 24, 25, followed by a half wave rectifier 26 developing unidirectional output voltage across the averaging load resistance 27 and capacitance 28 which energises a D.C. amplifier 30 feeding a D.C. recorder 31. Ions produced by the reaction bombard the resistance element to produce random noise voltages therein, which after rectification produce a recorded indication of the ionic concentration. and of the reaction activity. Fig. 2 shows a flame detector wherein the ions emitted by the flame impinge on a resistance element in the form of a probe comprising a metal casing 48 enclosing an electrode 49 embedded in a ceramic tip 40. The output is amplified as before and applied to an A.C. voltmeter 46 indicating the ionic concentration, or to a known warning device. The detecting resistance element may comprise merely the gas in a gap between two electrodes on which a flame plays, and across which the ionic noise signal appears, Fig. 3 (not shown). A metallic resistor may be used for the detection element, which should have as large a surface area as possible.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US701955XA | 1951-04-09 | 1951-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB701955A true GB701955A (en) | 1954-01-06 |
Family
ID=22093749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7631/52A Expired GB701955A (en) | 1951-04-09 | 1952-03-25 | Improvements in or relating to charged particle detecting device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB701955A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3753102A (en) * | 1969-12-15 | 1973-08-14 | Nat Res Dev | Detection of electrostatic charge in flowing materials |
-
1952
- 1952-03-25 GB GB7631/52A patent/GB701955A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3753102A (en) * | 1969-12-15 | 1973-08-14 | Nat Res Dev | Detection of electrostatic charge in flowing materials |
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