公开(公告)号：US4949069A

公开(公告)日：1990-08-14

申请号：US269122

申请日：1988-11-09

Applicant: Carl R. Wilson

Inventor： Carl R. Wilson

IPC: G08B21/18

CPC classification number: G08B21/182

Abstract: A liquid level indicator uses a conductive probe and when the circuit is energized a logic signal indicates whether the liquid is above or below a certain level. The signal is processed by a logic circuit and the output of the logic circuit controls an indicator circuit. An inhibit circuit provides an input to the logic circuit and prevents the indicator circuit from indicating low liquid within a start time delay period after energization of the sensing circuit. The logic circuit includes a time constant circuit which interposes time delays in the logic signal output of the logic circuit to prevent false indications from momentary changes in liquid level.

Abstract translation: 液位指示器使用导电探针，当电路通电时，逻辑信号指示液体是高于还是低于一定水平。 信号由逻辑电路处理，逻辑电路的输出控制指示电路。 禁止电路为逻辑电路提供输入，并且防止指示电路在感测电路通电之后的起始时间延迟周期内指示低液体。 逻辑电路包括时间常数电路，其将时间延迟插入逻辑电路的逻辑信号输出，以防止液位瞬时变化的错误指示。

公开(公告)号：US5293149A

公开(公告)日：1994-03-08

申请号：US684693

申请日：1991-04-12

Applicant: Carl R. Wilson ,  Jeffrey G. Hertenstein

Inventor： Carl R. Wilson ,  Jeffrey G. Hertenstein

IPC: B60Q5/00 ,  B06B1/02 ,  G08B3/10 ,  G10K9/12 ,  G08B3/00

CPC classification number: G08B3/10 ,  B06B1/0215

Abstract: A vehicle horn with an electronic solid state energizing circuit is described. The horn has an electromagnet for driving a diaphragm assembly which has a resonant frequency of mechanical vibration. The energizing circuit generates a DC pulse train for energizing the coil of the electromagnet to drive the diaphragm. The circuit has an adjustment for setting the pulse repetition rate of the pulse train substantially equal to the resonant frequency. It also has an adjustment for independently setting the duty cycle of the pulse train. The circuit further includes a compensator for varying the duty cycle inversely with changes in the supply voltage. An electronic power switch is connected in series with the vehicle battery and the horn coil through an unswitched power circuit. A horn switch is connected in an on/off circuit which connects the battery to a control circuit for generating the pulse train and applies it to the electronic power switch.

Abstract translation: 描述了具有电子固态激励电路的车辆喇叭。 喇叭具有用于驱动具有机械振动的共振频率的隔膜组件的电磁体。 激励电路产生用于激励电磁体的线圈以驱动隔膜的DC脉冲串。 电路具有用于设置脉冲串的脉冲重复率基本上等于谐振频率的调整。 它还具有独立设置脉冲串的占空比的调整。 该电路还包括用于随着电源电压的变化而与占空比相反地改变的补偿器。 电子电源开关通过未开关的电源电路与车载电池和喇叭线圈串联连接。 喇叭开关连接在将电池连接到用于产生脉冲串的控制电路的开/关电路中，并将其施加到电子电源开关。

公开(公告)号：US5266921A

公开(公告)日：1993-11-30

申请号：US828239

申请日：1992-01-30

Applicant: Carl R. Wilson

Inventor： Carl R. Wilson

IPC: G10K9/13 ,  B06B1/02 ,  G08B3/00

CPC classification number: B06B1/0284 ,  B06B1/023 ,  B06B2201/40 ,  B06B2201/53

Abstract: Adjustment of the pulse energizing frequency and duty cycle of a vehicle horn is described. The horn is blown by a test energizing circuit with a varying pulse frequency and the and the frequency at which the horn produces the maximum sound pressure level is taken as the predetermined resonant frequency. Then the horn is blown by the test energizing circuit at the resonant frequency with a varying duty cycle value of duty cycle which produces a predetermined striking force of the plunger against the pole piece is taken as the predetermined impact-producing duty cycle which is used for setting the operating duty cycle of the horn in a manner depending upon the type of the horn. The horn is then blown by its own electronic energizing circuit and the actual pulse frequency thereof is adjusted, preferably by laser trimming of a resistor, to match the resonant frequency. Then the horn is blown by its own energizing circuit at the resonant frequency and the duty cycle is adjusted, preferably by laser trimming, to set the actual duty cycle in a known relation to the predetermined impact-producing duty cycle.

Abstract translation: 描述车辆喇叭的脉冲通电频率和占空比的调整。 通过具有变化的脉冲频率的测试激励电路吹喇叭，并且将喇叭产生最大声压级的频率作为预定的谐振频率。 然后，以谐振频率由试验用激励电路吹制喇叭，其工作周期的变化占空比值将产生柱塞相对于极片的预定击打力作为预定的冲击产生占空比，其用于 以取决于喇叭的类型的方式设定喇叭的工作占空比。 然后通过其自身的电子激励电路吹喇叭，优选通过电阻器的激光微调来调整其实际脉冲频率以匹配谐振频率。 然后通过谐振频率的自身通电电路吹喇叭，优选通过激光修整来调整占空比，以将已知的占空比设定为与预定的冲击产生占空比相关的已知关系。

公开(公告)号：US4813123A

公开(公告)日：1989-03-21

申请号：US148380

申请日：1988-01-25

Applicant: Carl R. Wilson ,  James A. Neese

Inventor： Carl R. Wilson ,  James A. Neese

IPC: G10K9/20 ,  H04R31/00

CPC classification number: G10K9/20 ,  Y10T29/49004 ,  Y10T29/49005 ,  Y10T29/4908

Abstract: An electric horn has a diaphragm driven by a plunger which is vibrated by a coil having a pole piece. A small air gap between the plunger and the pole piece is required to assure that they will not touch during vibration. The gap is adjusted by assembling the horn with the gap small enough to permit the plunger to be pulled into contact with the pole piece by magnetic force when a preset direct current is applied to the coil. After assembly a calibration procedure is to apply the preset current to the coil, mechanically pull the pole piece away from the plunger until the diaphragm force overcomes the magnetic force causing the plunger and pole piece to separate, electrically detect the time of separation, and then stop or optionally pull the pole piece an additional fixed amount to set the required gap. Apparatus automatically performs the calibration procedure.

Abstract translation: 电喇叭具有由柱塞驱动的隔膜，其由具有极片的线圈振动。 需要柱塞和极片之间的小气隙，以确保它们在振动期间不会接触。 通过将喇叭组装成足够小的间隙来调节间隙，以允许当预设的直流电被施加到线圈时通过磁力将柱塞拉动与极片接触。 组装后，校准程序是将预设电流施加到线圈，将极片机械地拉动离开柱塞直到隔膜力克服磁力使柱塞和极片分离，电检测分离时间，然后 停止或可选地拉动极靴额外的固定量以设定所需的间隙。 仪器自动执行校准程序。