摘要:
Sensor equipment includes: a sensor device having a sensing portion; and an electric connection portion coated with an electric insulation member. The electric connection portion electrically connects an external circuit and the sensor device. The electric insulation member is a thin film disposed on the electric connection portion. In the sensor equipment, the insulation member is made of the deposition film, which is not deteriorated with time. Therefore, the insulation member does not flow out from the connection portion. Accordingly, detection sensitivity of the sensor equipment is prevented from reducing.
摘要:
An infrared sensor is composed of an optical filter plate, an infrared-detecting plate and a supporting member positioned between both plates. A detecting element for detecting infrared rays passing through the optical filter plate is formed on a front surface of the infrared-detecting plate facing the optical filter plate. The supporting member is positioned to surround the detector element on the infrared-detecting plate to firmly connect both plates and to form a predetermined gap between both plates. The supporting member may be composed of a number of discrete dots positioned to surround the detector element or of a continuous ring surrounding the detector element.
摘要:
A control apparatus for use in the direction indicating system of a vehicle having a group of front, rear and side directional lamps. The control apparatus includes a capacitor which is charged and discharged alternately and a comparator which reverses the charging and discharging of the capacitor by comparing the voltage across the capacitor with a reference voltage so that the directional lamps flash periodically. The reference voltage is changed from one to another value upon disconnection of the side directional lamp and further changed from one to the other value upon disconnection of the front or rear directional lamp, thus increasing the flashing frequency of the directional lamps upon each disconnection. The capacitor is charged and discharged by respective constant currents to decrease frequency fluctuation at each flashing frequency of the directional lamps.
摘要:
An infrared sensor is composed of an optical filter plate, an infrared-detecting plate and a supporting member positioned between both plates. A detecting element for detecting infrared rays passing through the optical filter plate is formed on a front surface of the infrared-detecting plate facing the optical filter plate. The supporting member is positioned to surround the detector element on the infrared-detecting plate to firmly connect both plates and to form a predetermined gap between both plates. The supporting member may be composed of a number of discrete dots positioned to surround the detector element or of a continuous ring surrounding the detector element.
摘要:
In a thermal-type flow rate sensor, a mold material is formed to integrally cover a predetermined range including a circuit chip, connecting parts of connecting wires with a flow rate detecting chip and the circuit chip, and connecting parts of connecting wires with the circuit chip and a lead portion, to expose a part of the flow rate detecting chip to a measured fluid. The flow rate detecting chip is located in a groove portion of a support member to have a clearance with the groove portion and to form a cavity part inside a thin wall portion of the detecting chip. The cavity part communicates with an outside through a communicating portion that includes the clearance, and the clearance is blocked by a filler at least at a portion positioned in the predetermined range. Therefore, the filler prevents the mold material from entering the clearance in the mold forming.
摘要:
A flasher apparatus for vehicles capable of informing the presence of short-circuit in a direction indicating system and protecting the direction indicating system from burnout. The flasher apparatus receives both a flashing signal for energizing direction indicating lamps and a detection signal indicative of the electric current flowing to said direction indicating lamps. The detection signal is compared with a reference signal so that the short-circuit in the system is detected. Upon detection of the short-circuit, the direction indicating lamps are prevented from being energized to thereby inform the presence of short-circuit and protect the system. The short-circuit detecting operation is disabled for a period of time in which a comparatively large rush current flows to the direction indicating lamps.
摘要:
An improved method and apparatus for use in the direction indicating system of a vehicle having a group of front, rear and side directional lamps. The directional lamps are connected in parallel with each other to be energized by a battery through a current detecting resistor, a normally-closed relay and a selection switch. The relay is energized to open periodically in response to a train of pulses so that the directional lamps flash periodically during closure of the selection switch. Closure of the selection switch is detected in response to the voltage across the current detecting resistor to generate the pulses applied to the relay.
摘要:
In a thermal-type flow rate sensor, a mold material is formed to integrally cover a predetermined range including a circuit chip, connecting parts of connecting wires with a flow rate detecting chip and the circuit chip, and connecting parts of connecting wires with the circuit chip and a lead portion, to expose a part of the flow rate detecting chip to a measured fluid. The flow rate detecting chip is located in a groove portion of a support member to have a clearance with the groove portion and to form a cavity part inside a thin wall portion of the detecting chip. The cavity part communicates with an outside through a communicating portion that includes the clearance, and the clearance is blocked by a filler at least at a portion positioned in the predetermined range. Therefore, the filler prevents the mold material from entering the clearance in the mold forming.
摘要:
A pressure sensor includes a sensor chip having a pressure receiving surface formed on one surface of the sensor chip, a first case having one end portion at which the sensor chip is provided, a second case attached to the one end portion of the first case to cover the sensor chip. The second case is provided with a pressure introducing passage for introducing the pressure to the sensor chip, and a wiring board is provided at the one end portion of the first case to have a surface facing toward the pressure introducing passage. In the pressure sensor, the sensor chip is electrically connected with the surface of the wiring board through bumps by a flip-chip bonding such that the pressure receiving surface faces the surface of the wiring board, and an insulating member is provided to seal a connection portion of the bumps.
摘要:
An apparatus for optically detecting the attachment state of extraneous matters to a translucent shield member. The optically detecting apparatus comprises a light-emitting unit having a plurality of light-emitting elements each emitting a light ray toward the translucent shield member, a photoelectric transducer unit having a plurality of transducer elements each receiving each of the light rays reflected on the translucent shield member, and a data processing unit coupled to the transducer unit. The transducer unit generates detection signals corresponding to the quantities of the received light rays and the data processing unit successively compares the level of each of the detection signals with a predetermined level to produce binary signals in accordance with the results of the comparison so that a binary signal pattern is defined at the respective transducer elements. The data processing unit determines the attachment state of the extraneous matters to the translucent shield member by comparing the defined binary signal pattern with a reference pattern.