CN206038887U - Non -contact phonophoresis partial discharge detector's examination calibration equipment - Google Patents
Non -contact phonophoresis partial discharge detector's examination calibration equipment Download PDFInfo
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- CN206038887U CN206038887U CN201620706601.9U CN201620706601U CN206038887U CN 206038887 U CN206038887 U CN 206038887U CN 201620706601 U CN201620706601 U CN 201620706601U CN 206038887 U CN206038887 U CN 206038887U
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- partial discharge
- ultrasonic transducer
- calibration equipment
- discharge detector
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Abstract
The utility model discloses a non -contact phonophoresis partial discharge detector's examination calibration equipment, including signal driving source, ultrasonic transducer module, calibration platform, reference sensor, oscilloscope, 50 omega coaxial cable, examined the instrument and included by survey sensor and partial discharge detection appearance, the utility model discloses the detectable project includes sensitivity, detects the frequency band, the linearity, stability etc. And test method realizes, debugs simple quick, test procedure convenient and fast easily, is applicable to electric power test industry's non -contact phonophoresis partial discharge detector's performance examinations such as routine maintenance, test, correction, guarantees detecting instrument's validity, reliability.
Description
Technical field
This utility model belongs to high pressure detection technique field, and in particular to a kind of non-contact type ultrasonic method shelf depreciation inspection
Survey the examination calibration equipment of instrument.
Background technology
In high pressure detection field, the detection method of shelf depreciation is a lot, wherein sound detection by external electromagnetic noise affected compared with
It is little, it is more satisfactory non electrical quantity in-situ check and test method.For the switch cubicle class power equipment of substation field, internal generation office
Portion discharges, and supervenes ultrasonic signal, ultrasonic signal along air borne to power equipment shell crack between a door and its frame at, by electricity
Non-contact type ultrasonic sensor is used at power device housings crack between a door and its frame, can collect the ultrasonic signal that generation is put in internal office,
The ultrasonic signal for detecting is converted into the signal of telecommunication and is sent in partial discharge detection instrument by ultrasonic sensor again, and then analyzes judgement electricity
The shelf depreciation situation of power equipment.This partial discharge detection mode is referred to as non-contact type ultrasonic method, due to contactless at present super
Sound wave partial discharge detection instrument performance is very different, lacks unified qualification platform, leverages power equipment partial discharge detection
As a result validity and reliability, the safe operation to power equipment can bring major hidden danger, therefore design a kind of contactless
The examination verification method for designing of supercritical ultrasonics technology Partial discharge detector is significant.
The content of the invention
This utility model is directed to the deficiencies in the prior art, it is proposed that a kind of non-contact type ultrasonic method Partial discharge detector
Examination calibration equipment.
A kind of examination calibration equipment of non-contact type ultrasonic method Partial discharge detector, including signal driving source, ultrasound
Wave transducer module, verification platform, reference sensor, oscillograph, 50 Ω coaxial cables, by test examination instrument include tested sensor and
Partial discharge detection instrument,
Described signal driving source is connected by 50 Ω coaxial cables with ultrasonic transducer module, described signal excitation
Used as signal source, ultrasonic transducer module is used as sender unit in source；Described verification platform is provided with graduated scale, letter
Number flat pad and signal receiving platform are also set, respectively on verification platform, signal receiving platform can on verification platform from
By sliding；Described ultrasonic transducer module is arranged on signal flat pad, and tested sensor or reference sensor are arranged
In signal receiving platform；Tested sensor or reference sensor are with ultrasonic transducer module in same level height；It is described
Reference sensor or tested sensor be connected with oscillograph by 50 Ω coaxial cables, described partial discharge detection instrument and tested biography
Sensor is connected by 50 Ω coaxial cables.
Described signal driving source is divided into sine wave source and pulse calibration source, there is provided amplitude, frequency-adjustable it is continuous
Sine wave signal, pulse signal, sine pulse sequence (persistent period is adjustable)；Described sine wave source output amplitude 0～
10V, 0～10MHz of frequency is adjustable；Described output of pulse signal amplitude 1mV～10V is adjustable, pulse signal rising time
(10%～90%) it is not more than 150ns, pulse width is not less than 1 μ s；Described sine pulse sequence output amplitude 1mV～10V,
Frequency 20kHz～200kHz is adjustable.
Described ultrasonic emitting module is ultrasonic transducer, and the output of the ultrasonic transducer is 5W, frequently
10 k-300kHz of rate scope, by exciting signal source be input into the signal of telecommunication be converted into ultrasonic signal output, and amplitude frequency according to
The regulation of input signal and change.
The center resonant frequency of described ultrasonic transducer is more than megahertz level.
Described verification platform is integrally made using metal aluminium, length 110cm；
Described reference sensor adopts high-precision ultrasonic transducer, and frequency bandwidth range is 20k～200kHz, and must
20～60kHz must be included.
Described oscillograph, its analog bandwidth are not less than 500MHz, and sample rate is not less than 2GS/s.
Benefit produced by this utility model：
This utility model provides a kind of examination verification method for designing of non-contact type ultrasonic method Partial discharge detector, can
Detection project includes sensitivity, detection frequency band, the linearity, stability etc., and method of testing is easily realized, debugs simple and quick, survey
Examination process is convenient and swift, it is adaptable to the routine maintenance of the non-contact type ultrasonic method Partial discharge detector of electric power detection industry,
The Performance Assessments such as test, correction, it is ensured that the effectiveness of detecting instrument, reliability.
Description of the drawings
Fig. 1 is the examination calibration equipment wiring diagram that tester is put in non-contact type ultrasonic office.
Fig. 2 is the examination calibration equipment figure that tester is put in non-contact type ultrasonic office.
Specific embodiment
As shown in Figure 1 and Figure 2, the utility model proposes a kind of non-contact type ultrasonic method Partial discharge detector examines
Core calibration equipment, including signal driving source, ultrasonic transducer module 1, verification platform 2, reference sensor, oscillograph, 50 Ω
By test examination instrument, coaxial cable, is included that detector is put in tested sensor drawn game,
Described signal driving source is connected by 50 Ω coaxial cables with ultrasonic transducer module, described signal excitation
Used as signal source, ultrasonic transducer module is used as sender unit in source；Described verification platform 2 is provided with graduated scale,
Signal flat pad 4 and signal receiving platform 3 are also set, respectively on verification platform, and signal receiving platform can be in verification platform
On slidably；Described ultrasonic transducer module is arranged on signal flat pad, tested sensor or reference sensor
It is arranged on signal receiving platform；Tested sensor or reference sensor are with ultrasonic transducer module in same level height；
Described reference sensor or tested sensor are connected with oscillograph by 50 Ω coaxial cables, described partial discharge detection instrument and quilt
Survey sensor to connect by 50 Ω coaxial cables.
Described signal driving source is divided into sine wave source and pulse calibration source, there is provided amplitude, frequency-adjustable it is continuous
Sine wave signal, pulse signal, sine pulse sequence (persistent period is adjustable)；Described sine wave source output amplitude 0～
10V, 0～10MHz of frequency is adjustable；Described output of pulse signal amplitude 1mV～10V is adjustable, pulse signal rising time
(10%～90%) it is not more than 150ns, pulse width is not less than 1 μ s；Described sine pulse sequence output amplitude 1mV～10V,
Frequency 20kHz～200kHz is adjustable.
Described ultrasonic emitting module is ultrasonic transducer, and the output of the ultrasonic transducer is 5W, frequently
Rate scope 10k-300kHz, by exciting signal source be input into the signal of telecommunication be converted into ultrasonic signal output, and amplitude frequency according to
The regulation of input signal and change.
The center resonant frequency of described ultrasonic transducer is more than megahertz level.
Described verification platform is integrally made using metal aluminium, length 110cm；
Described reference sensor adopts high-precision ultrasonic transducer, and frequency bandwidth range is 20k～200kHz, and must
20～60kHz must be included.
Described oscillograph, its analog bandwidth are not less than 500MHz, and sample rate is not less than 2GS/s.
Claims (7)
1. a kind of examination calibration equipment of non-contact type ultrasonic method Partial discharge detector, it is characterised in that：Swash including signal
Encourage source, ultrasonic transducer module, verification platform, reference sensor, oscillograph, 50 Ω coaxial cables, by test examination instrument include by
Survey sensor drawn game and put detector,
Described signal driving source is connected by 50 Ω coaxial cables with ultrasonic transducer module, and described signal driving source is made
For signal source, ultrasonic transducer module is used as sender unit；Described verification platform is provided with graduated scale, and signal is sent out
Penetrate platform and signal receiving platform is also set, respectively on verification platform, signal receiving platform can the free skating on verification platform
It is dynamic；Described ultrasonic transducer module is arranged on signal flat pad, and tested sensor or reference sensor are arranged on letter
Number receiving platform；Tested sensor or reference sensor are with ultrasonic transducer module in same level height；Described ginseng
Examine sensor or tested sensor is connected with oscillograph by 50 Ω coaxial cables, described partial discharge detection instrument and tested sensor
Connected by 50 Ω coaxial cables.
2. the examination calibration equipment of a kind of non-contact type ultrasonic method Partial discharge detector according to claim 1, its
It is characterised by：Described signal driving source is divided into sine wave source and pulse calibration source, there is provided amplitude, frequency-adjustable it is continuous
Sine wave signal, pulse signal, sine pulse sequence；Described sine wave source 0～10V of output amplitude, frequency 0～
10MHz is adjustable；Described output of pulse signal amplitude 1mV～10V is adjustable, and pulse signal rising time is not more than 150ns, arteries and veins
Width is rushed not less than 1 μ s；Described sine pulse sequence output amplitude 1mV～10V, frequency 20kHz～200kHz is adjustable.
3. the examination calibration equipment of a kind of non-contact type ultrasonic method Partial discharge detector according to claim 1, its
It is characterised by：The output of described ultrasonic transducer is 5W, and exciting signal source is input into by frequency range 10k-300kHz
The signal of telecommunication be converted into ultrasonic signal output, and amplitude frequency changes according to the regulation of input signal.
4. the examination calibration equipment of a kind of non-contact type ultrasonic method Partial discharge detector according to claim 1, its
It is characterised by：The center resonant frequency of described ultrasonic transducer is more than megahertz level.
5. the examination calibration equipment of a kind of non-contact type ultrasonic method Partial discharge detector according to claim 1, its
It is characterised by：Described verification platform is integrally made using metal aluminium, length 110cm.
6. the examination calibration equipment of a kind of non-contact type ultrasonic method Partial discharge detector according to claim 1, its
It is characterised by：Described reference sensor adopts high-precision ultrasonic transducer, and frequency bandwidth range is 20k～200kHz, and
20～60kHz must be included.
7. the examination calibration equipment of a kind of non-contact type ultrasonic method Partial discharge detector according to claim 1, its
It is characterised by：Described oscillograph, its analog bandwidth are not less than 500MHz, and sample rate is not less than 2GS/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706601.9U CN206038887U (en) | 2016-06-30 | 2016-06-30 | Non -contact phonophoresis partial discharge detector's examination calibration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706601.9U CN206038887U (en) | 2016-06-30 | 2016-06-30 | Non -contact phonophoresis partial discharge detector's examination calibration equipment |
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| CN206038887U true CN206038887U (en) | 2017-03-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954698A (en) * | 2016-06-30 | 2016-09-21 | 杭州西湖电子研究所 | Examination and verification device for noncontact ultrasonic method partial discharge detector and examination and verification method thereof |
-
2016
- 2016-06-30 CN CN201620706601.9U patent/CN206038887U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954698A (en) * | 2016-06-30 | 2016-09-21 | 杭州西湖电子研究所 | Examination and verification device for noncontact ultrasonic method partial discharge detector and examination and verification method thereof |
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