摘要:
A sensing element is adapted to monitor a temperature of a foodstuff placed within an oven cavity of a cooking utensil such as a microwave oven. The sensing element comprises a thermally-responsive element, an antenna, a double choke, and a trimmer condenser. The double choke is bent so as to provide a double compartment for causing choke operations. The double compartment contains a material the dielectric constant of which is higher than the air. A capacity of the trimmer condenser is adjustable. A resonance circuit or an oscillation circuit may be formed with the thermally-responsive element and the trimmer condenser. A metallic member is disposed adjacent to the antenna. The length of the antenna is selected as an integral multiple of about .lambda./2 (.lambda. is the wavelength of the microwaves).
摘要:
A wireless temperature-sensing assembly adapted for a cooking apparatus such as a microwave oven, comprises a wireless communication element and a sensing probe. The wireless communication element provides electromagnetic waves over an oven cavity of the cooking apparatus. The sensing probe selects a particular frequency of the electromagnetic waves. The sensing probe contains an oscillator element resonance frequencies of which vary depending on the surrounding temperature. The wireless communication element further receives and detects the particular frequency of the electromagnetic waves defined by the selecting means. In a specific form, the wireless communication element provides the electromagnetic waves the frequencies of which vary from time slot to time slot. The oscillator element may be composed of crystal, ceramic, or the like. The resonance frequencies of the oscillator element change due to variation in its number of proper vibrations dependent on the surrounding temperature.
摘要:
The object of the present invention is to provide a package of a volatile substance, which comprises a bag having a volatile substance with an antibacterial action enclosed therein, and a case having the bag enclosed therein, wherein the case is allowed to have a size and shape complying with the amount of a volatile substance having permeated the bag so that the shape of the case can be adapted to the volumes and shapes of various air conditioners, while the volatile substance can be volatilized at a predetermined rate. The package of a volatile substance according to the invention comprises a source generating the volatile substance, and a case which has the volatile-substance source enclosed therein and which has a wall at least a part of which is made of a gas-permeable resin, wherein the case is characterized in that a value expressed by the formula X×Z/Y is 200000 to 1500000 wherein X represents the surface area (mm2) of the wall; Y represents the thickness (mm) of the wall; and Z represents the vaporization amount (mg/day) of the volatile substance volatilized by the volatile-substance source per day in an atmosphere at 30° C.
摘要:
The object of the present invention is to provide a package of a volatile substances which comprises a bag having a volatile substance with an antibacterial action enclosed therein, and a case having the bag enclosed therein, wherein the case is allowed to have a size and shape complying with the amount of a volatile substance having permeated the bag so that the shape of the case can be adapted to the volumes and shapes of various air conditioners, while the volatile substance can be volatilized at a predetermined rate. The package of a volatile substance according to the invention comprises a source generating the volatile substance, and a case which has the volatile-substance source enclosed therein and which has a wall at least a part of which is made of a gas-permeable resin, wherein the case is characterized in that a value expressed by the formula X×Z/Y is 200000 to 1500000 wherein X represents the surface area (mm2) of the wall; Y represents the thickness (mm) of the wall; and Z represents the vaporization amount (mg/day) of the volatile substance volatilized by the volatile-substance source per day in an atmosphere at 30° C.