A pet collar has an adjustable length strap and a buckle. The buckle has a receiver and a clip releasably coupled to the receiver. The receiver includes a catch portion coupleable to the clip and a tension indicator portion. The tension indicator portion has two side walls defining a shuttle channel. Each side wall has a top surface having a first mark, a second mark, a third mark, and a fourth mark which have color coding. The shuttle channel is configured to slidably receive a reciprocating tensioning shuttle therein. The tensioning shuttle includes two side wall and a compression spring. Each side wall also includes a top flange overlaying the receiver side walls that includes a first viewing window and a second viewing window. The viewing windows alignment with the underlying marks indicated the tension of the collar upon the pet.

The invention relates to a voltage sensor with a high-voltage terminal 5, a signal connection and a ground terminal (7), wherein the voltage sensor (1) comprises a core region (2) with an electrical resistor (3) arranged therein and a capacitor arrangement arranged therein, wherein the capacitor arrangement has a first electrode (4), which is connected to the high-voltage terminal (5), a second electrode (6), which is connected to the signal connection, wherein the first electrode (4) and the second electrode (6) are electrically conductively connected via the electrical resistor (3), and wherein the capacitor arrangement has a third electrode (8), which is connected to the ground terminal (7), wherein the first electrode (4), the second electrode (6) and the third electrode (8) each comprise a plurality of electrically conductive, substantially finger-shaped or rod-shaped modulating elements (9, 9′, 9″) which preferably extend parallel to the longitudinal axis (13) of the voltage sensor.

The present disclosure provides a galvanometer motor, including a stator, a rotor, and a sensor board. The stator includes a housing and a drive coil mounted inside the housing. The rotor includes a rotating shaft and a galvanometer lens. A pair of radially magnetized magnetic poles are at the middle of the rotating shaft, two ends of the rotating shaft are rotatably mounted inside the housing, and one end of the rotating shaft extends outside the housing and is connected to the galvanometer lens. The sensor board is fixed on an inner wall of the housing and is at one end of the housing farther away from the galvanometer lens. The sensor board is mounted with one or more magnetic sensors configured to sense a magnetic field signal generated by the pair of magnetic poles, to obtain absolute positions of the rotating shaft and the galvanometer lens.

The present disclosure provides a galvanometer motor, including a stator, a rotor, and a sensor board. The stator includes a housing and a drive coil mounted inside the housing. The rotor includes a rotating shaft and a galvanometer lens. A pair of radially magnetized magnetic poles are at the middle of the rotating shaft, two ends of the rotating shaft are rotatably mounted inside the housing, and one end of the rotating shaft extends outside the housing and is connected to the galvanometer lens. The sensor board is fixed on an inner wall of the housing and is at one end of the housing farther away from the galvanometer lens. The sensor board is mounted with one or more magnetic sensors configured to sense a magnetic field signal generated by the pair of magnetic poles, to obtain absolute positions of the rotating shaft and the galvanometer lens.