An alternative optical method for acoustic resonance detection in HID lamps

Kaiser, W. J.; Marqués, R.; Correa, Alexander

doi:10.1109/ias.2011.6074368

Cited by 3 publications

(5 citation statements)

References 6 publications

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“…El esquema de experimentación empleado para obtener datos de las variables físicas y eléctricas de las lámparas HID-MH se presenta en la figura 1, que es una adaptación del propuesto por [5]. Se parte de un balasto electrónico que consiste de un inversor en configuración puente completo, el mismo que es alimentado por una fuente de corriente directa Kepko KLP600 cuya tensión de salida es variable por software.…”

Section: Diseño Del Experimentounclassified

“…Por lo expuesto, es necesario detectar la presencia de RA. En este sentido, básicamente existen tres métodos de detección de RA: medición de las emisiones acústicas, eléctricamente al medir la impedancia equivalente de la lámpara y óptica al detectar desplazamientos o perturbaciones en el arco de descarga [5]. En este trabajo se emplea una mezcla de los dos últimos métodos.…”

Section: Introductionunclassified

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Comportamiento de la impedancia equivalente de lámparas HID-MH alimentadas por onda cuadrada de alta frecuencia

Ayala

Gutierrez

2016

Maskay

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Las características dinámicas de operación de la impe- dancia equivalente de lámparas de haluros metálicos cuando son alimentadas con una onda cuadrada de alta frecuencia (10 kHz a 50 kHz) son investigadas. Variables eléctricas como la tensión, corriente y potencia; así como variables físicas: temperatura e intensidad luminosa son analizadas en su comportamiento frente a variaciones de la frecuencia de operación. Se propone, además, un método que permite cuantificar la amplitud de la resonancia acústica longitudinal en cada frecuencia de funcionamiento de las lámparas HID-MH.

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Section: Diseño Del Experimentounclassified

Section: Introductionunclassified

Comportamiento de la impedancia equivalente de lámparas HID-MH alimentadas por onda cuadrada de alta frecuencia

Ayala

Gutierrez

2016

Maskay

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“…This area is proportional to plasma losses [4]. However, there is a tradeoff as acoustic resonance (AR) occurs in MH lamps operating above 1 kHz [5]. AR can cause lamp arc distortion, rotation, extinction, and in the worst case, lamp explosion [6]- [8].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Resonance Detection Using Statistical Methods of Voltage Envelope Characterization in Metal Halide Lamps

Fang

Dupuis

Durrieu

et al. 2017

IEEE Trans. on Ind. Applicat.

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Acoustic resonance (AR) phenomenon occurs in metal halide lamps and can cause light flicker, lamp arc bending and rotation, lamp extinction, and in the worst case, arc tube explosion. This study takes place in the context of developing electronic ballasts with robust AR detection and avoidance mechanisms. To this end, a lock-in amplifier is used to measure and characterize lamp voltage root mean square (rms) short-term fluctuations. Statistical criteria based on the standard deviation of this rms value are proposed to assess AR presence and classify its severity. A set of metal halide lamps from different manufacturers and with different powers were tested. The average electrical power and AR level are controlled by adjusting the lamp operating frequency of highfrequency electronic ballast. The proposed criteria enable classifying healthy (without AR) and faulty (with AR) cases based upon either a two-dimensional plane or a boxplot. Regardless of lamp operating power, the results from this study show that the voltage rms variations and the defined criteria are significantly correlated with AR level.

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“…Thanks to better color rendering index (CRI), MH lamps are widely used in locations where color is important, such as shops, factories, supermarkets, gymnasiums and so on 1) . However, due to the negative impedance 2) of MH lamps, accompanying ballasts are needed. Compared with magnetic ballasts, electronic ballasts have lower volume, lower weight and higher power factor.…”

mentioning

confidence: 99%

“…Consequently, detection and suppression of AR are vital for the development of electronic ballasts. To detect AR, several methods based on electrical 6, 7) optical 2,8) and sound 9) have been presented in the previous papers. In the papers [10][11][12] , simple methods were proposed, where voltage variations or current variations are measured to detect AR.…”

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confidence: 99%

A Simple High-Sensitivity Acoustic Resonance Detection Method for Metal Halide Lamps

Fang

Dupuis

Durrieu

et al. 2018

JSTL

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To detect acoustic resonance (AR) in metal halide (MH) lamps, a simple high-sensitivity method with a multiplier detector is presented in this paper. Voltage envelope variations are measured to evaluate whether AR occurs in MH lamps. The study is focused on improving the sensitivity of an AR detection method. Several manufacturers MH lamps are tested in our experiment. In addition, the proposed method is compared to another voltage envelope detection method evaluating by a lock-in amplifier with high sensitivity and detection results are analyzed by statistical methods. The results show that the proposed circuit can provide similar sensitivity as the expensive lock-in amplifier to detect AR phenomena and the AR-free and the slight AR level can be easily distinguished.

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An alternative optical method for acoustic resonance detection in HID lamps

Cited by 3 publications

References 6 publications

Comportamiento de la impedancia equivalente de lámparas HID-MH alimentadas por onda cuadrada de alta frecuencia

Comportamiento de la impedancia equivalente de lámparas HID-MH alimentadas por onda cuadrada de alta frecuencia

Acoustic Resonance Detection Using Statistical Methods of Voltage Envelope Characterization in Metal Halide Lamps

A Simple High-Sensitivity Acoustic Resonance Detection Method for Metal Halide Lamps

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