Logger And Method For Attaching Logger
AssigneeSeiko Epson Corporation
InventorsRyuta NISHIZAWA, Toshiya USUDA, Taichi FUJINAMI
Life of this patent
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Abstract
A logger includes a clock circuit configured to generate time information, a first electrode, a second electrode to which a reference voltage is supplied, an event detection circuit configured to detect an event based on a voltage change in an input signal input from the first electrode, a storage circuit, and a processing circuit. When the event is detected by the event detection circuit, the processing circuit determines that the resistance value of the measurement object disposed between the first electrode and the second electrode has changed due to wetting of the measurement object by a liquid, and records, in the storage circuit as log information, time information indicating detection of the event.
Claims17
A logger comprising:
- a clock circuit configured to generate time information;
- a first electrode;
- a second electrode to which a reference voltage is supplied;
- an event detection circuit configured to detect an event based on a voltage change of an input signal input from the first electrode;
- a storage circuit;
- and
- a processing circuit configured to determine, in response to detection of the event by the event detection circuit, a change in a resistance value of the measurement object disposed between the first electrode and the second electrode due to wetting of the measurement object by a liquid, and to record, in the storage circuit as log information, the time information indicating detection of the event.
A method for attaching a logger to a measurement object, the logger including
- a clock circuit configured to generate time information,
- a first electrode,
- a second electrode to which a reference voltage is supplied,
- an event detection circuit configured to detect an event based on an input signal input from the first electrode,
- a storage circuit, and
- a processing circuit configured to record the time information in the storage circuit when the event detection circuit detects the event,
- the method comprising:
- attaching the logger to the measurement object such that the first electrode and the second electrode of the logger are in contact with the measurement object.
Dependencies are inferred from the claim text.