Abstract: An environment detection apparatus is provided. In one embodiment, the detection apparatus comprises: a first sensing device, a second sensing device in fluid communication with the first sensing device and a spectrum analyzer electrically connected to the first sensing device and the second sensing device. The first sensing device includes a pair of first electrodes configured to provide a first alternating current signal directly to a gas flowing into the first sensing device. The second sensing device includes a first filter configured to capture a solid in the gas flowing into the second sensing device and a pair of second electrodes configured to provide a second alternating current signal directly to the first filter with the solid captured by the first filter.

Abstract: An electrostatic field strength measuring apparatus includes an electrostatic field detection device and a processor. The electrostatic field detection device includes a ring light source configured to emit a light signal to a target object, and a reflection detector disposed within and surrounded by the ring light source and configured to receive a reflection signal, of the light signal, reflected by a surface of the target object and generate an electrical signal based upon the reflection signal. The processor is configured to determine, based upon the electrical signal, measures of electrostatic field strength at the surface of the target object.

Abstract: An apparatus is provided. The apparatus includes a laser generation device configured to emit a laser signal to a semiconductor fabrication component. The apparatus includes a reflection detection device configured to receive a reflection signal comprising light, of the laser signal, reflected by a surface of the semiconductor fabrication component. The reflection detection device includes an optical filter. The optical filter is configured to block light, of the reflection signal, that has a wavelength outside a defined range of wavelengths. The optical filter is configured to provide filtered light, from the reflection signal, that has a wavelength within the defined range of wavelengths. The reflection detection device includes a light sensor configured to generate an electrical signal based upon the filtered light. The apparatus includes a computer configured to determine, based upon the electrical signal, measures of electrostatic field strength at the surface of the semiconductor fabrication component.

Abstract: An earphone with adjustable-length cable includes a plugging section, a connecting cable and a receiving section. The plugging section has an attach-conductive adapter and a plug at two ends respectively. The connecting cable connects the plugging section and the receiving section, and has at least one separable attaching cable. The separable attaching cable has two attach-conductive adapters at two ends respectively. The receiving section has an attach-conductive adapter and an audio-playing unit at two ends respectively. Each attach-conductive adapter is formed with an end surface, and has at least one attaching element and a plurality of conductive plates exposed at outside of the end surface. The attach-conductive adapters are attached each other by the attaching elements, and electrically connected to each other through the conductive plates, so that signals from the plugging section are transmitted to the receiving section and are played by the audio-playing unit.

Abstract: An earphone with adjustable-length cable includes a plugging section, a connecting cable and a receiving section. The plugging section has an attach-conductive adapter and a plug at two ends respectively. The connecting cable connects the plugging section and the receiving section, and has at least one separable attaching cable. The separable attaching cable has two attach-conductive adapters at two ends respectively. The receiving section has an attach-conductive adapter and an audio-playing unit at two ends respectively. Each attach-conductive adapter is formed with an end surface, and has at least one attaching element and a plurality of conductive plates exposed at outside of the end surface. The attach-conductive adapters are attached each other by the attaching elements, and electrically connected to each other through the conductive plates, so that signals from the plugging section are transmitted to the receiving section and are played by the audio-playing unit.