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公开(公告)号：US20140239180A1
公开(公告)日：2014-08-28
申请号：US14182927
申请日：2014-02-18
Applicant: ULIS
Inventor： Michel Vilain , Patrick Robert
IPC: G01J5/20
CPC classification number: G01J5/20 , G01J5/22 , H04N5/33 , H04N5/3655
Abstract: An infrared detector including an array of detection bolometers each having a bolometric membrane suspended above a substrate, and associated with each bolometer: a detection branch, including the bolometer and a circuit performing a biasing according to a voltage set point, a compensation branch, including a compensation bolometer thermalized to the substrate, a circuit performing a biasing according to a voltage set point, an integrator for generating a voltage by integrating a difference between the currents flowing through said branches, a circuit generating a quantity depending on substrate temperature, including: a bolometer thermalized to the substrate, and a circuit for biasing the bolometer, and a circuit for generating the voltage set points according to said quantity. When the array is exposed to a uniform reference scene, the average of the differences between currents flowing through said branches is within the integrator dynamic range for a substrate temperature range from −30° C.-90° C.
Abstract translation: 一种红外检测器，包括检测测辐射热表阵列，每个探测辐射计具有悬浮在基板上方的测温膜，并与每个测辐射热计相关联：检测分支，包括测辐射热计和根据电压设定点执行偏置的电路，补偿分支，包括 对基板进行热处理的补偿测辐射热器，根据电压设定点执行偏置的电路，通过积分流过所述分支的电流之间的差产生电压的积分器，产生取决于基板温度的量的电路，包括： 对基板进行热处理的测辐射热仪，以及用于偏置测辐射热计的电路，以及根据所述量产生电压设定点的电路。 当阵列暴露于均匀参考场景时，流经所述分支的电流之间的差异的平均值在-30°C-90°C的衬底温度范围内在积分器动态范围内。
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公开(公告)号：US10199990B2
公开(公告)日：2019-02-05
申请号：US15300641
申请日：2015-04-30
Applicant: ULIS
Inventor： Patrick Robert
Abstract: A device for integrating an electric current during a period Tint, including an operational amplifier and a capacitor connected between a first input and an output of the amplifier, a second input of the amplifier being taken to a voltage VBUS, output voltage Vout of the amplifier being saturated at a high voltage VsatH and a low voltage VsatH according to the charge quantity in the capacitor. The device also includes: a circuit for switching the terminals of the capacitor; and a circuit for triggering the circuit at least once during period Tint when voltage Vout both grows and is substantially equal to a reference voltage VREF, the voltage VREF being smaller than or equal to voltage VsatH, and reference voltage VREF and voltage VBUS being selected to comply with relation 2·VBUS−VREF≥VsatL; and a storage circuit for storing the number of triggerings having occurred between the initial time and the end time of the integration period.
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公开(公告)号：US20170111015A1
公开(公告)日：2017-04-20
申请号：US15300641
申请日：2015-04-30
Applicant: ULIS
Inventor： Patrick Robert
CPC classification number: H03F1/26 , G01J5/24 , H03F3/005 , H03F3/087 , H03F3/45071 , H03F2200/261 , H03F2200/264 , H03M1/182 , H03M1/50
Abstract: A device for integrating an electric current during a period Tint, including an operational amplifier and a capacitor connected between a first input and an output of the amplifier, a second input of the amplifier being taken to a voltage VBUS, output voltage Vout of the amplifier being saturated at a high voltage VsatH and a low voltage VsatH according to the charge quantity in the capacitor. The device also includes: a circuit for switching the terminals of the capacitor; and a circuit for triggering the circuit at least once during period Tint when voltage Vout both grows and is substantially equal to a reference voltage VREF, the voltage VREF being smaller than or equal to voltage VsatH, and reference voltage VREF and voltage VBUS being selected to comply with relation 2·VBUS−VREF≧VsatL; and a storage circuit for storing the number of triggerings having occurred between the initial time and the end time of the integration period.
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公开(公告)号：US08987668B2
公开(公告)日：2015-03-24
申请号：US14182927
申请日：2014-02-18
Applicant: ULIS
Inventor： Michel Vilain , Patrick Robert
CPC classification number: G01J5/20 , G01J5/22 , H04N5/33 , H04N5/3655
Abstract: An infrared detector including an array of detection bolometers each having a bolometric membrane suspended above a substrate, and associated with each bolometer: a detection branch, including the bolometer and a circuit performing a biasing according to a voltage set point, a compensation branch, including a compensation bolometer thermalized to the substrate, a circuit performing a biasing according to a voltage set point, an integrator for generating a voltage by integrating a difference between the currents flowing through said branches, a circuit generating a quantity depending on substrate temperature, including: a bolometer thermalized to the substrate, and a circuit for biasing the bolometer, and a circuit for generating the voltage set points according to said quantity. When the array is exposed to a uniform reference scene, the average of the differences between currents flowing through said branches is within the integrator dynamic range for a substrate temperature range from −30° C.-90° C.
Abstract translation: 一种红外检测器，包括检测测辐射热表阵列，每个探测辐射计具有悬浮在基板上方的测温膜，并与每个测辐射热计相关联：检测分支，包括测辐射热计和根据电压设定点执行偏置的电路，补偿分支，包括 对基板进行热处理的补偿测辐射热器，根据电压设定点执行偏置的电路，通过积分流过所述分支的电流之间的差产生电压的积分器，产生取决于基板温度的量的电路，包括： 对基板进行热处理的测辐射热仪，以及用于偏置测辐射热计的电路，以及根据所述量产生电压设定点的电路。 当阵列暴露于均匀参考场景时，流经所述分支的电流之间的差异的平均值在-30°C-90°C的衬底温度范围内在积分器动态范围内。
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