Abstract: Provided are a measurement device and a measurement method that enable calibration in the event of error variations. A measurement device configured to measure an amount of moisture contained in a medium, the measurement device including: a first probe in which a first cable electrically connectable to a first connection cable is embedded; a second probe in which a second cable electrically connectable to a second connection cable is embedded; and a standard that is fixed at a predetermined positional relationship with the first probe and the second probe even during the measurement, is electrically connectable to the first connection cable and the second connection cable when the measurement is not conducted, and is used for calibration of the measurement.

Abstract: In a device measuring an amount of moisture in a medium, the performance of the device is improved. The sensor device includes a transmission probe, a reception probe, and a measurement circuit. The transmission probe includes a plurality of transmission antennas, and the reception probe includes a plurality of reception antennas. In this sensor device, the measurement circuit performs time-divisional control in which control of selecting one transmission antenna among the plurality of transmission antennas each time and radiating electromagnetic waves is repeatedly performed until performance of radiation ends in all the antennas set in advance.

Abstract: A sensor device is disclosed for measuring an amount of moisture in a medium that includes: a transmission antenna; a reception antenna to receive electromagnetic waves transmitted from the transmission antenna and through a medium; a measurement unit to measure the electromagnetic waves propagating to the reception antenna; and a sensor casing and further includes a transmission substrate including a plurality of wiring layers and a reception substrate including a plurality of wiring layers, and a measurement unit substrate including a plurality of wiring layers and includes the measurement unit or a first coating layer that, in a part of the transmission substrate, coats an outer circumference of the substrate and is formed from an electromagnetic wave absorbent material and a second coating layer that, in a part of the reception substrate, coats an outer circumference of the substrate and is formed from an electromagnetic wave absorbent material.

Abstract: A device for measuring the amount of moisture in a medium that includes a transmission antenna that sends a signal as an electromagnetic wave, a reception antenna that receives the electromagnetic wave sent from the transmission antenna and transmitted through a medium, a measurement section that measures the electromagnetic wave propagated to the reception antenna, and a sensor casing. The sensor device further includes a transmission substrate that includes a plurality of wiring layers and a reception substrate that includes a plurality of wiring layers, or a first covering layer that partially covers an outer periphery of the transmission substrate and a second covering layer that partially covers an outer periphery of the reception substrate The coverings are formed of an electromagnetic wave absorption material. The sensor casing includes a transmission probe casing that accommodates the transmission substrate and a reception probe casing that accommodates the reception substrate.

Abstract: In a device that measures an amount of moisture in a medium, performance of the device is improved. A sensor device includes a transmitter, a receiver, and a sensor control unit. In this sensor device, a transmitter supplies a transmission signal to a transmission antenna. In addition, in the sensor device, a receiver receives a reception signal corresponding to the transmission signal through a reception antenna. In the sensor device, before measuring a predetermined parameter on the basis of the reception signal, the sensor control unit adjusts electric power of the transmission signal on the basis the reception signal.

Abstract: Measurement accuracy of the amount of moisture is improved by a device that measures the amount of moisture in a medium. The sensor device includes a pair of antennas, a measurement circuit, a transmission path, and a radio wave absorption section. In the sensor device which includes the pair of antennas, the measurement circuit, the transmission path, and the radio wave absorption section, the measurement circuit measures the amount of moisture in a medium between the pair of antennas. Also, the transmission path connects the pair of antennas to the measurement circuit in the sensor device. The radio wave absorption section is formed in the surroundings of the transmission path in the sensor device.

Abstract: When measuring a distance between communication apparatuses, influence by a frequency offset between communication apparatuses is suppressed. A communication apparatus includes a frequency offset acquisition unit, a time acquisition unit, a phase acquisition unit, and a distance generation unit. The frequency offset acquisition unit acquires a frequency offset between frequencies used for transmission/reception by respective ones of the communication apparatuses. The time acquisition unit acquires transmission/reception time between the communication apparatuses. The phase acquisition unit acquires a phase relationship between frequencies used for transmission/reception. The distance generation unit generates distance information on the basis of the phase relationship.

Abstract: A sensor apparatus includes a sensor head and a measurement unit. The sensor head includes a first probe and a second probe. The first probe includes a first tiny antenna section for transmission and a second tiny antenna section for transmission. The second probe is arranged at a predetermined distance from the first probe, and includes a first tiny antenna section for reception and a second tiny antenna section for reception. The measurement unit generates a measurement signal that includes information regarding characteristics of a propagation of an electromagnetic wave in a medium between the first tiny antenna section for transmission and the first tiny antenna section for reception, and information regarding characteristics of the propagation of the electromagnetic wave in the medium between the second tiny antenna section for transmission and the second tiny antenna section for reception.

Abstract: The present disclosure relates to a communication device and a communication method that enable adaptive positioning. A communication unit performs wireless communication with a peripheral communication apparatus, and a processing unit outputs, on the basis of a frequency characteristic of a propagation channel, information of a distance to the communication apparatus and reliability level information representing a reliability level of the distance information. The present disclosure can be applied to, for example, a BLE chip.

Abstract: The size of a solid-state imaging device that captures images is reduced. The solid-state imaging device includes an array antenna. A plurality of rectifying antenna circuits is arranged in the array antenna. Each of the plurality of rectifying antenna circuits includes a rectifying antenna and a pixel signal generating unit. The pixel signal generating unit includes a floating diffusion layer, a transfer transistor that transfers charge from the rectifying antenna to the floating diffusion layer in accordance with a transfer signal, a reset transistor that initializes the amount of charge in the floating diffusion layer in accordance with a reset signal, an amplification transistor that amplifies a voltage corresponding to the amount of charge accumulated in the floating diffusion layer, and a selection transistor that outputs a signal of the amplified voltage as a pixel signal in accordance with a selection signal.

Abstract: A measurement device that measures an amount of moisture in a medium. The device includes a transmitter that transmits an electrical signal including an incident wave to one of a pair of probes in which a cable has been embedded through the cable. A receiver receives a reflected wave obtained from reflection of the incident wave by the one of the pairs of probes and a transmitted wave that has been transmitted through a medium between the pair of probes through the cable. A processing unit obtains a reciprocating delay time corresponding to a time over which the electrical signal reciprocates through the cable and measures an amount of moisture contained in the medium on the basis of the reciprocating delay time and a propagation transmission time corresponding to a time over which electromagnetic waves propagate and the electrical signal is transmitted through the medium and the cable.

Abstract: The size of a solid-state imaging device that captures images is reduced. The solid-state imaging device includes an array antenna. A plurality of rectifying antenna circuits is arranged in the array antenna. Each of the plurality of rectifying antenna circuits includes a rectifying antenna and a pixel signal generating unit. The pixel signal generating unit includes: a floating diffusion layer; a transfer transistor that transfers charge from the rectifying antenna to the floating diffusion layer in accordance with a transfer signal; a reset transistor that initializes the amount of charge in the floating diffusion layer in accordance with a reset signal; an amplification transistor that amplifies a voltage corresponding to the amount of charge accumulated in the floating diffusion layer; and a selection transistor that outputs a signal of the amplified voltage as a pixel signal in accordance with a selection signal.