JPH01120632U - - Google Patents
Info
- Publication number
- JPH01120632U JPH01120632U JP1444688U JP1444688U JPH01120632U JP H01120632 U JPH01120632 U JP H01120632U JP 1444688 U JP1444688 U JP 1444688U JP 1444688 U JP1444688 U JP 1444688U JP H01120632 U JPH01120632 U JP H01120632U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- speaker
- oscillator
- normal
- voice coil
- 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.)
- Granted
Links
- 238000003745 diagnosis Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
第１図は本考案の実施例のブロツク図、第２図
は第１図を説明するための波形図である。
１……スピーカ、２……発振器、３……直列抵
抗、４……切替リレー、５……バツフアアンプ、
６……Ａ／Ｄ変換器、７……ＣＰＵ、８……記憶
部、９……インターフエース部、１０……表示部
、１１……操作部。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a waveform diagram for explaining FIG. 1. 1... Speaker, 2... Oscillator, 3... Series resistor, 4... Switching relay, 5... Buffer amplifier,
6...A/D converter, 7...CPU, 8...Storage section, 9...Interface section, 10...Display section, 11...Operation section.
Claims (1)
を介してスピーカに付加する手段と、該スピーカ
のボイスコイルの固有共振信号の正常時の信号を
記憶する手段と、該記憶された正常時の信号とス
ピーカの故障時のボイスコイルの固有共振信号を
取り出し正常時に記憶した信号に補正値を含めて
比較する手段と、前記スピーカの正常時の信号と
故障時の信号とを比較する手段と、比較された信
号を表示する表示手段とを備えたことを特徴とす
るスピーカの故障診断装置。 an oscillator, means for applying an output signal from the oscillator to a speaker via a series resistor, means for storing a normal signal of a natural resonance signal of a voice coil of the speaker, and the stored normal signal. means for extracting the natural resonance signal of the voice coil when the speaker is in failure and comparing the signal stored in the normal condition with a correction value; A failure diagnosis device for a speaker, comprising display means for displaying a signal that has been detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1444688U JPH079519Y2 (en) | 1988-02-05 | 1988-02-05 | Speaker failure diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1444688U JPH079519Y2 (en) | 1988-02-05 | 1988-02-05 | Speaker failure diagnosis device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01120632U true JPH01120632U (en) | 1989-08-16 |
| JPH079519Y2 JPH079519Y2 (en) | 1995-03-06 |
Family
ID=31225650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1444688U Expired - Lifetime JPH079519Y2 (en) | 1988-02-05 | 1988-02-05 | Speaker failure diagnosis device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079519Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006095804A1 (en) * | 2005-03-10 | 2006-09-14 | Matsushita Electric Industrial Co., Ltd. | Broadcast system and loudspeaker failure inspection method |
| JP2010147764A (en) * | 2008-12-18 | 2010-07-01 | New Japan Radio Co Ltd | Method and device for diagnosing speaker |
-
1988
- 1988-02-05 JP JP1444688U patent/JPH079519Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006095804A1 (en) * | 2005-03-10 | 2006-09-14 | Matsushita Electric Industrial Co., Ltd. | Broadcast system and loudspeaker failure inspection method |
| JP2010147764A (en) * | 2008-12-18 | 2010-07-01 | New Japan Radio Co Ltd | Method and device for diagnosing speaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079519Y2 (en) | 1995-03-06 |