NL7608252A - Monitoring changing parameters in inaccessible environments - e.g., corrosion in reactors, by detecting change in resonant frequency of vibrating probe - Google Patents
Monitoring changing parameters in inaccessible environments - e.g., corrosion in reactors, by detecting change in resonant frequency of vibrating probeInfo
- Publication number
- NL7608252A NL7608252A NL7608252A NL7608252A NL7608252A NL 7608252 A NL7608252 A NL 7608252A NL 7608252 A NL7608252 A NL 7608252A NL 7608252 A NL7608252 A NL 7608252A NL 7608252 A NL7608252 A NL 7608252A
- Authority
- NL
- Netherlands
- Prior art keywords
- probe
- resonant frequency
- corrosion
- monitored
- reactors
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
A probe is caused to vibrate from an external energy source, and its resonant frequency monitored. Changes in environmental parameters cause a change in the resonant frequency and can thereby be detected and monitored. A probe may take the form of a strip or bar or circular section, and may, e.g. be made of the material whose corrosion rate is to be monitored. The probe is vibrated at a frequency of 0.3-3.0 Hz by an externally mounted electrically driven energy source, connected to the probe by a rigid coupling. Used for on-line monitoring of corrosion or solids deposition within chemical reactors or equipment such as turbines or compressors and for the detection of ice formation outside buildings or on aircraft wings. Monitoring in inaccessible situations is readily possible so that expensive plant shut-downs for internal inspection are minimised.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7608252A NL7608252A (en) | 1976-07-26 | 1976-07-26 | Monitoring changing parameters in inaccessible environments - e.g., corrosion in reactors, by detecting change in resonant frequency of vibrating probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7608252A NL7608252A (en) | 1976-07-26 | 1976-07-26 | Monitoring changing parameters in inaccessible environments - e.g., corrosion in reactors, by detecting change in resonant frequency of vibrating probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7608252A true NL7608252A (en) | 1978-01-30 |
Family
ID=19826653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7608252A NL7608252A (en) | 1976-07-26 | 1976-07-26 | Monitoring changing parameters in inaccessible environments - e.g., corrosion in reactors, by detecting change in resonant frequency of vibrating probe |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL7608252A (en) |
-
1976
- 1976-07-26 NL NL7608252A patent/NL7608252A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |