scispace - formally typeset
Patent

Surface contacting type load sensor

Okamoto Kenji, +1 more
TLDR
In this paper, the absolute value of a maximum load by combining a peak detector with an integrator was found by combining an integrators with a sensor, using a threshold value setting resistance of the sensor part.
Abstract: 
PURPOSE:To easily find the absolute value of a maximum load by combining a peak detector with an integrator, etc CONSTITUTION:When a driving voltage V is applied to a reference electrode 46, the circuit of a sensor is reset The voltage of the electrode 46 is inverted by an inverter 70 and an analog switch 56 is controlled with its inverted signal Namely, when the voltage V is applied to the electrode 46, a switch 56 is off and when the voltage V is not applied, the switch 56 is on The switch 56, therefore, operates to removes an output voltage passed through the threshold value setting resistance 48 of the sensor part and supplies only the output voltage at the time of a scan on the main body of a pressure sensitive and conductive sheet 40 to the peak detector 58 and integrator 60 Then, the integrator 60 and detector 58 fitted to each column electrode 44 are easily constituted by utilizing an amplifier Thus, the absolute value of the maximum load is easily found

read more

Citations
More filters
Patent

Pressure sensitive distribution sensor sheet and method for detecting its disconnection

Ogami Juichi
TL;DR: In this article, the authors proposed to detect disconnection real-time if the disconnection occurs by eliminating a disconnection confirming operation for executing by applying pressure, where the backings 1R and 1C are integrated so that pressure sensitive ink layer is interposed between the row and column electrodes.
Patent

Pressed state detection method for pressure sensitive sheet, and pressure sensitive sheet

Totsu Yuji, +1 more
TL;DR: In this article, the authors proposed a voltage measuring means (VMS) detection method that uses a matrix type pressure-sensitive sensor grounded via reference resistance, where the voltage measurement means is connected to one sensing electrode (S), and a drive voltage (V) is applied to all drive electrodes.
Patent

Pressure sensor and device for inputting data

Masaki Kazuo, +1 more
TL;DR: In this paper, a double-face tape is used as a spacer between a movable electrode and a divided electrode to detect a position applied with pressure even as a pressure sensor using a capacitance change.
Patent

Rockbed crack measuring method and device thereof

Shin Koichi, +2 more
TL;DR: In this paper, the authors proposed a method to measure the shape of a crack in a rockbed and the opening pressure by using the relationship between pressure and impedance, which is defined as the change of distance between a plurality of electrodes 15 attached to the pressurizer 1 in the hole.